A Decade of Microship Development
© 2004 by Steven K. Roberts
Nomadic Research Labs
"Exhilaration
is that feeling you get
just after a great idea hits you, and just before you realize what's
wrong with it."
—Rex Harrison
A clear fantasy in no way implies a well-defined course of
action. One of the great recurring tragedies of engineering is
the disparity between the two—the ease with which you can fling
yourself along a path that seems obvious and correct, only to discover
that the real goal is poorly understood, irrelevant, or changing so
fast that you become “staggered by your own imagination,” as my old
friend
Dave Wright once said. In this
article, we follow our intrepid technomad as he plunges into what was
to be a quick one-year project, porting the proven technomadic concept
onto something
that floats. Really, how hard could that
be?
The Onset of Nautical Dementia
After nine
years of technomadics with Winnebiko
and BEHEMOTH and a
startlingly intense kayaking epiphany
in the Adirondacks, my life became defined by a deliciously mad fantasy
of aquatic adventure… a full-scale technomadic overlay onto a tiny
nautical substrate, elegant and swift. Kayaks filled my head, and
before long I had acquired my own Wilderness Systems Sealution—complete
with an overhead stowage nest across from BEHEMOTH in the Mothership, the
mobile lab in which I plied the Interstates while schlepping my toys
into hamfests, trade shows, user group meetings, and corporate
brown-bag luncheons. The more I talked about the bike, the more I
thought about the boat.
Figure
1—Winter kayaking on Lake Michigan, near Racine, Wisconsin
My world view was changing: for the first time since the Winnebiko days, I was focused on
the adventure more than on the tools. I would wander into
chandleries and browse nautical chartbooks, longingly, one page at a
time, my mind flowing over seductive benthic topography while I
imagined probing estuarine crevasses heavy with the funk of low tide.
Boats themselves became almost erotic in my imagination; while numbly
piloting Biggus Truckus
across the prairies, the other 90% of my mind would lose itself in
daydream scenarios that commingled flesh-strewn beaches with
environmenal telemetry and underwater video, forging an obsession every
bit as potent as the one that had propelled me out of Ohio.
Alone and with various companions, I slipped my slender hull into every
body of water I came across. I paddled Barclay Sound, Ole Muddy
near a freeway overpass in Iowa, the Petaluma River, Jetski-infested
Shasta Lake, sparkling-cold Lake San Cristobal high in the Rockies,
Puget Sound, the Maine coast around Deer Isle, San Diego and San
Francisco Bays, surfy Santa Cruz (whoa!), Lake Michigan amongst the
slushbergs (Figure 1), mangrove canals in the Florida Keys, even a
placid man-made pond at a Nebraska campground—whenever the random
peregrinations of the BEHEMOTH
dog ‘n’ pony show would land me near water, I’d go for it in the name
of research. I hit both the East and West Coast Sea Kayak
Symposia, schmoozing with the industry, fast-tracking learning curves,
and gathering gear. The plan was simple: I’d acquire a big
fat kayak with lots of room, build a pressurized console to house the
electronics, tile the deck with solar panels, pack up, and get going by
the Spring of 1994!
Behemoth, in the Old Testament,
a powerful, grass-eating animal whose “bones are tubes of bronze, his
limbs like bars of iron” (Job 40:18). Among various Jewish legends, one
relates that the righteous will witness a spectacular battle between
Behemoth and Leviathan in the messianic era and later feast upon their
flesh. Some sources identify Behemoth, who dwells in the
marsh and is not frightened by the turbulent river Jordan, as a
hippopotamus and Leviathan as a crocodile, whale, or snake.
Copyright 1994, Encyclopaedia Britannica, Inc.
I initially dubbed the project LEVIATHAN
to echo the acronymic moniker of my terrestrial steed, although it did
vaguely occur
to me that maybe this wasn’t the philosophical precedent that should
color the new design… I wanted the boat to be light and sleek, with no
more on-board gizmology than the basic tools required to make my dream
come true.
The first task was finding a place to park Nomadic Research Labs and
get to work. As usual, I was budget-limited, so holing up
somewhere and renting facilities was out of the question. I fired
off email to contacts all over industry and academia, questing for a
spacious place to sling goo, fabricate electronics, and write some
code—rather a lot to ask (especially the goo part, as companies tend to
be sensitive about volatile organic compounds and other toxic chemicals
in the
work environment). Not too hopeful about that option, I
investigated old barns, derelict urban buildings, boatyards,
manufacturing or warehouse space lying fallow, decommissioned military
sites, university agricultural sheds, and even the wild idea of parking
the Mothership in my dad’s field in Kentucky and taking over the
basement. I was getting frustrated.
An Academic Sojourn
One day in the Spring of ‘93, I arrived in San Diego to speak at
Qualcomm, one of my favorite sponsors—the creators of the bike’s
satellite communication system and gurus of CDMA and other DSP-flavored
wizardry, a company founded and managed by engineers instead of
business majors. A friend there pointed me to nearby Scripps
Institution of Oceanography, where I might have a chance to pick up a
few tricks from guys who know how to keep electronics working at sea (a
non-trivial problem, with all that delicate high-impedance circuitry
surrounded by conductive aqua regia).
Armed with an introduction, I wandered over and did a casual bike show
‘n tell for a Friday afternoon Scripps cookout.
Now, I’d never spent much time around Real Scientists. As I was
standing by the keg nursing a pint, my bike parked a few feet away and
the surf pounding just beyond, a classic Hollywood stereoptype of the
brilliant young PhD walked over and said, “Fascinating. Have you
gotten any results yet?”
“Well, I’ve fallen in love a few times,” I answered.
He looked at me blankly for a moment and then cracked up. “No,
seriously…”
This was my introduction to academia. I hung around a few days,
seeking space at the Scripps facilities, eventually managing to arrange
a secure place to park the Mothership and stash my gear in a run-down
storage facility in a desolate nearby canyon… but with no net
connection, phone, or actual workspace. It was an excellent
toehold, though, and the chain of contacts kept growing as I explored
the couch circuit. A few days later I met with Professor Clark
Guest in the Electronic
& Control Engineering department at UCSD
(University of California, San Diego).
Almost immediately a potential win-win emerged. Although it
wasn’t widely viewed as a problem among the academics, there was a
serious shortage of hands-on engineering opportunity for
students: they could make it through four years and get an
undergraduate degree without ever picking up a soldering iron. I
found this shocking, of course, and had a solution to offer: “Hey, give
me some lab space and I’ll teach a senior projects class!”
I stumbled into the university culture with naiveté and an utter
disregard for hierarchies—to me, there was no essential difference
between deans, chancellors, TAs, and professors. Only much later
did I understand that there is a pervasive caste system, which
explained my tendency to ruffle feathers. Other than holding on
to lab space long enough to get the Microship built, however, I had no
pretensions of a career, publishing in refereed journals, or chasing
the holy grail of tenure.
Nor did I anticipate the complex politics of space wars. My first
lab was an abandoned bookstore… but the day after I installed a
monitored security system and set up a working facility, a construction
crew hacked straight through the drywall, knocked over a shelving unit,
looked around in annoyance at my stuff, and asked me what the hell I was doing there. “We’re
tearing out this whole end of the building and you gotta get this crap
outta here NOW, before our contract penalty clause kicks in and costs
us a thousand bucks a day. Which is what it’s gonna cost you.” But this disaster
turned out to be tantamount to a back door from the institution-hacking
perspective: now that finding space for me could be defined as an
emergency, I landed within a
few hours in the Microwave Lab, vacant for the quarter and perfect for
my needs.
I moved out two years later. Occasionally real professors would
wonder aloud what some rube without a degree was doing with 800 square
feet of prime space in the engineering building, complete with a dozen
benches, adjoining office, and Faraday cage. “I hear he’s having
those kids build circuit boards. What the hell does he think this
is, a vo-tech school?”
But I was fortunate to have three faculty members solidly on my side
(coincidentally, the only ones who had worked in industry), and was
bolstered by a well-publicized program that gave students the chance to
design and build real systems, not just run SPICE simulations as an
antidote to the textbook world of lumped constants and zero-rise time
pulses (much .edu about nothing).
The experience did cure me of any lingering wistful regret about having
missed those idyllic college years, despite sampling a mosh pit during
a Skankin’ Pickle concert and the daily consumption of epicurean
cafeteria fare. All around me, students were undergoing a sort of
extended agony of uncertainty and stress, many of them deep into
engineering school without any notion of what real engineers actually
do. Summers and holidays were bleak, with the local espresso
spigots shut down or severely curtailed, and La Jolla has to be the
most sedate college town I’ve ever seen (and I’ve seen quite a few, as
the 10,000-mile solo phase of my bike trip became a sort of collegiate
connect-the-dots exercise once the social opportunities became
evident). But what mattered now was assembling an effective
student team every quarter, learning how to be a manager, and getting
on with the project. I hoped I’d be able to identify and attract folks
on the fringe, give them interesting design challenges, and leverage
their work to propel myself into the next adventure.
Despite the distraction of that 3-mile long nude beach just down the
hill <swoon>, I dove in with passion. The Microship project
was underway at last.
Microship 1.0—Kayak Hacking
The energy was relentless during that summer of ‘93, as I got ready for
the start of the school year. I posted daily updates to a growing
mailing list of volunteers, spent my days on the horn with sponsors and
nautical experts, prowled the diverse San Diego maritime community, and
ravenously devoured trade journals and boat publications. I
signed up at the Mission Bay Aquatic Center and took every class they
offered, riding the bus from campus 3-4 days a week to sail Sabots,
Holders, Lasers, Hobies, J-24s, and sailboards, all in the name of
research. My notebooks bulged with sketches and rambling design
narratives, and the concept began to take shape with the immediate goal
of breaking it down into quarter-sized projects scaled to teams of 2-3
students.
Already the nautical design was evolving. Despite my fundamental
belief that this had to be a lightweight, human-powered platform, it
had become obvious a couple of months earlier that a kayak alone
wouldn’t do the job. During a solo jaunt from Seattle to Blake
Island, a perfect sunny day morphed within the hour into a grim death
march of chill winds and ugly drizzle. I hadn’t yet learned to
pay attention to NOAA weather broadcasts when conditions looked benign,
and was out there dodging freighters in the rain clad only in T-shirt
and shorts, my life jacket Bungeed to the afterdeck. A beautiful
Kokatat polypropylene jacket and Gore-Tex outer shell were stuffed in a
dry bag a few feet away in the forward gear hatch (yeah, I know, that
was a stupid place to put them). The only way to reach insulation
would be to capsize, do a wet exit into hypothermia-inducing water,
swim forward, retrieve the gear while soaking it in the process, deploy
the paddle float, re-enter the boat, pump out, shiver miserably for a
while, and continue on my way. Obviously that would be silly, so
I paddled my ass off until I hit the island, chilled to the bone and
depressed about the whole idea. Why take off on an open-ended
journey in an unstable boat with inaccessible gear? Hell, just
handling the man-hour extension facility (Gatorade bottle)
is a pain in a kayak,
much less getting at video cameras, tools, or computers.
Clearly, it’s more sensible to build a catamaran with two kayaks (a
kayakamaran?), or perhaps even a trimaran made of three. Not only
would this provide enough stability to allow free movement around the
boat, but there would be room for a solar array scaled to power an
electric thruster. Hmmm… with multiple hulls providing righting
moment, there’s no reason not to add a sail rig…
And so the plan, as I readied myself for the influx of UCSD students,
was to build a little trimaran with the largest two-person kayak I
could find as the center hull, linked by crossbeams to a pair of sleek
singles serving as stabilizing outriggers and detachable play-boats
(Figure 2). This would require considerable deck surgery, but
would take advantage of off-the-shelf hardware—for life is too short to
re-invent the hull. I envisioned a central control console, and
set to work designing on-board systems.
Figure
2—CAD Model of early Microship micro-trimaran concept, afloat in an
Italian canal for scale. Visualization by Len Wanger, working at
the San Diego Supercomputer Center, 1993.
One of the best features of BEHEMOTH
had been the crossbar networks that allowed anything to connect to
anything, so I decided to replicate that on the boat… such resources as
marine radio, cell phone, sensors, video cameras, ham equipment, nav
tools, speech synthesizers, and stereo system would need to be
infinitely interoperable. Some kind of low-power processor,
perhaps a hacked laptop, would serve as a graphic front end, and the
various local tasks would be handled by distributed network
nodes. I had already gotten to know the 68HC11 with FORTH in ROM
from New Micros,
and discovered that they were in the process of developing a multidrop
scheme that would allow up to 256 boards to hang on a single network.
(Remember, I had an unusual design constraint: the need to
modularize the entire system for parallel development by student teams
of varying competence. It was also 1993; any processor robust
enough to do everything would be too power-hungry to leave on all the
time.)
By September, I had completed a Microship
Project Catalog, breaking the machine into somewhere around 45
tasks ranging from solar-panel packaging to front-end software.
It was an optimistic document, with quite a few of the jobs requiring
substantial skills and facilities, but it did give us a good starting
point. When the first class arrived and sat timidly awaiting
their fate, my professorial partner and I dove in, teaching FORTH,
explaining the hardware platform, and assigning project teams.
These were exciting times.
In a few months we had about ten FORTH
nodes scattered around the lab on benches arranged like finger piers in
a marina, all chained together into a classroom-scale Microship
emulator by a braided 6-wire bus and running the Beeline protocol
designed for the project by Bill Muench (giving us pier-to-pier
networking). Any node could be selected from the Hub using the
HC11’s “address mark wake-up” broadcast, whereupon the lucky guy’s
RS-485 transmit driver would be enabled to establish a one-to-one
connection at a blazing 9600 baud. As the quarters passed, we
wrote the code to download and launch applications, display node
status, mirror local variables from individual nodes in the Hub
(another FORTH board, but with more memory and lots of I/O), and
recover from crashes.
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Nodes were assigned to any processing task that could be clearly
defined, and some of the student teams produced decent work. The
audio, serial, and video crossbar networks all flickered to life,
collectively forming Grand Central
Station, shown in Figure 3.
A couple of shy fellows, uncertain of their abilities, managed with a
little coaching to decode the communications between a Sony DAT
recorder and its remote control, then replicate it to allow software to
drive the unit. (“This is the happiest moment of my life,” one
said as they arrived, newly confident, to give their final report in
suits and ties.) A delightful trio successfully took on the
Manpack project, a backpack-scaled miniature of the Microship itself
that would extend the system’s capabilities to peripatetic crew, linked
by wireless modem. And after a couple of failed attempts, we
found two guys to design the controller for the boat’s video turret
with its steerable high-quality camera: Working with a wizard
student from the Mechanical Engineering department who single-handedly
designed the packaging and mechanical hardware, they conjured a
stunningly beautiful piece of work that survived all the technological
attrition of the ensuing seven years and became part of the final
system. These were the
exceptions, the people I’d hire in a heartbeat, and they made it all
worthwhile.
Figure
3—Grand Central Station, consisting of Audio (top), Serial
(lower left), and Video (lower right) crossbar networks controlled by
68HC11 FORTH nodes.
(There is a complete archive of status reports from this phase of
development.)
Other projects weren’t quite so successful. The first attempt to write
a GUI for the crossbars took two guys two quarters, yielding a fat
listing of impenetrable C code for a ‘286 that talked directly to the
display drivers. It never really worked, but the fault lay with
my vague specifications; exasperated one afternoon, I sat down, learned
HyperTalk, and wrote a Mac-based front end in about six hours.
Some teams never got past their initial learning curves, and one pair
working on power management turned their final report into an
explanation of the Field-Effect Transistor, complete with
characteristic curves and massive amounts of replicated library
material, counting on the ancient tradition of BS to carry the
day. Another fellow fried the fuse in my beautiful new Fluke
87 digital multimeter trying to measure the current capacity of a power
supply by measuring across it; I sent him on a quest for a replacement
with the explanation that one of the first requirements of engineering
is knowing how to track down parts. Someone power-cycled my
Tektronix scope with every measurement; someone else cut a live
multi-conductor power cable with diagonal cutters and made the sparks
fly; yet another wired a fully populated DB-25 with about a half-inch
stripping on each wire, rendering it virtually untouchable without
causing a short. And I’ll never forget, “Steve, do these colors
on the resistors really mean
anything?”
But you know, it was worth it. The students who passed through
the Microship lab learned that there’s a hardware side to electrical
engineering, and some of them contributed useful designs to the
project.
While all this was going on, the boat itself kept changing shape.
It was difficult enough to wean myself from the BEHEMOTH effect, but
with the intoxicating new array of essential tools available in the
marine marketplace—chart plotters, radar, scanning sonar—it was
inevitable that I would start running into space constraints. I
think it was the recumbent that pushed me over the edge… a trimaran is
hard to paddle with crossbeams and outriggers in the way, and my feeble
arm muscles are wimpy compared to these hefty road-hardened quads, so a
central design goal became the addition of a pedal-drive system.
But why invent this from scratch, when people have been building
bicycles for over a century? I acquired an aluminum Linear
recumbent and, quickly concluding that it wouldn’t fit inside a kayak
of any scale, went to work with a hot glue gun, 2x4’s, and a pile of
cardboard to kluge a test platform for my embryonic human-powered boat.
The lab was soon dominated by a huge center-hull model, big enough for
an internal hallway of facing equipment racks and a drop-in recumbent
bicycle fixture. The plan was to interface the pedals with a jackshaft,
linked via clutches to an integrated motor/generator and the
propeller—thus allowing either pedal or electric power to drive the
propulsion system. Meanwhile, the outriggers had expanded into
double kayaks, and two of them were fabricated by Current Designs and
delivered to our storage facility at Scripps—their hull-deck seams
unfinished to facilitate structural modifications. Things were
growing ever larger, and every level of acceptance made it easier to
move another step closer to a yacht. At this point, the design
assumed a custom 30-foot center hull with 4-foot beam, a full-time crew
of two, a head, and integral berth spaces that could be converted to
seats to allow flexible watch rotation.
One day I found myself sketching a system that incorporated commercial
RV-scale camping gear with massive hydraulically deployed outriggers
and pushbutton conversion into diesel-powered road mode… a sort of
Winneboato. Something
was about to snap, all those sexily
blinking networked FORTH nodes in the lab notwithstanding.
Microship 2.0—The Fulmar Interlude
The ‘94 crop of students was due in a few weeks. A lot of
progress had happened in a year, but the nautical substrate was getting
weirder, bigger, and more abstract than ever—even with first-rate
consultation from some of the most noted marine architects in the
industry. “Do a weight study,” they would say, needing centers of
gravity and other hard data. “Tell me the constraints and I’ll
adapt,” I would reply. We ran finite-element models on the Cray,
hot-glued toothpick and cardboard miniatures, and contemplated internal
tubular space-frame construction to support the growing list of
non-nautical requirements like modular bicycles and deployable landing
gear. The simple fact was that I had encountered the limitations
of my original kayak-hacking approach, but didn’t want to move to a
yacht despite the bloating of the design to accommodate my growing
wish-list.
But an intriguing little boat had caught my eye at the Sea Kayak
Symposium in Port Townsend, Washington—a 19-foot trimaran called the
Fulmar, complete with pedal drive and 80 square
foot roller-furling
loose-footed sail. I made a jaunt up to Seattle to take a closer
look, and decided, during a thrilling test sail in perfect winds, to
fast-track this project and just buy the damn thing. It had been
over two years since the Microship notion had first burbled into my
head, and I was anxious to get on with the adventure. I no longer
wanted to be a boatbuilder.
Grinning ear-to-ear, I returned to USCD with the Fulmar on a
trailer and immediately launched the wildly amusing project of hauling
it up the outside of the engineering building to the patio outside my
third-floor lab. This involved 800’ of line and two
block-and-tackle assemblies with six-part purchase… not to mention a
bevy of students, massive lifting davits clamped to a fourth floor
railing, video documentation of the whole affair, and the inevitable
parking ticket (for every action, there is an equal and opposite UCSD
parking regulation). By midnight, the little trimaran was in my
lab on a workstand, and I was staring down the barrel of severe
physical constraints.
Yep, this thing was tiny. My primitive weight-study database lost
about 1,400 pounds of fat on the first pass, and there was still too
much stuff to fit into the boat’s gear hatches. Everything came
under scrutiny; about a half-dozen FORTH nodes were summarily tossed,
the rest adding tasks to handle the increased workload.
Once-essential subsystems lovingly conjured in the UCSD lab were
eliminated without a backward glance, wish lists were trimmed to the
essentials, and the project lifestyle was scaled back from cushy to
spartan… right where it started. I was reacting violently to the
fear of feature bloat… I wanted to go, not spend years in this
increasingly oppressive lab.
Figure
4—The matched pair of Fulmars, poised at Seattle’s Shilshole
Marina
At this point, a major romantic event occurred in my life: I met
Faun and fell head-over-heels within minutes. A week later we were
living together and planning a shared Microship adventure, and what
better way to field-test this new alliance than spend a couple of weeks
on the water? We spent a month or so outfitting the Fulmar with
the basics—navlights, GPS, marine VHF, battery, small solar panel,
power management system—and threw together a basic suite of camping
gear. We careened back up the coast and borrowed an identical
boat from Cy Hernandez in Seattle, forming the world’s largest
fleet of Fulmar-19 trimarans (only about 15 had ever been built), then
took off on a gonzo 2-week expedition around Puget
Sound: the first actual reality check of the Microship concept.
If I ever needed proof that armchair sailing is but a mild distraction
compared to the real thing, this was it. The adventure was a
rollicking exploration of life aboard tiny boats. Learning curves
were many and varied, ranging from the complexities of navigation in an
area beset by interesting tidal currents to the fundamental practical
issues of living out of drybags stuffed with gear. We pulled an
all-nighter on the first leg, busting our butts to make it to Port
Townsend by the next day at noon for my talk at the Sea Kayak
Symposium, spending the wee hours screaming north through Admiralty
Inlet in a shipping lane in the fog only to round Marrowstone Point and
pedal all morning against wind and current. We beached hard in
dumping surf, stranding ourselves for the night in howling winds on
Dungeness Spit. We pedaled 20 miles across an
uncharacteristically calm Strait of Juan de Fuca, entering Victoria
Harbor at midnight, then meandered all the next week through the San
Juans, coming to rest at last in La Conner where a shear pin in Faun’s
pedal drive unit failed during an encounter with kelp, rendering the
boat useless without a haulout and a bit of shop time. It was an
adrenaline-intensified romantic getaway… and utterly impractical.
The problems, in retrospect, were obvious. A prominent
centerboard trunk that carried the crankset made it impossible to lie
down inside the boat, and the saggy trampolines between the hulls were
too low and wet to be of more than recreational, fair-weather
value. No sleeping on the water, in other words… yet beaching was
only possible in benign conditions—dragging the 500-pound loaded boats
across rocks would strip the gelcoat and gouge the hull, and even on
sand it would take significant help to overcome friction. They
were too heavy to drag above tide line, yet impossible to sleep aboard…
so how would we handle the daily fundamental logistics without having a
truck and trailer meet us at every stop? On tiny Blind Island in
the San Juans, we picked up a mooring buoy, then raised a nearby
sailboat on the VHF and schmoozed dinghy rides to shore. In
Victoria, we luxuriated in an overpriced marina, paying by the foot the
same nightly rate as a cozy 38-foot yacht, yet we had to hoof it to
town and find a place to crash. In Sequim Bay, we put up a tent
in the marina, but were admonished to clear out by dawn or the
harbormaster would throw a fit. Practical problems dogged us
daily. (The lively Fulmar epoch, including the adventure tale, is
documented here.)
So... was the whole concept of small-scale aquatic technomadics
fundamentally
unsound?
Microship 3.0—The Hogfish Era
Convinced that the only solution to the stated practicality issues lay
in moving up to a trailerable pocket cruiser, we returned the borrowed
Fulmar, put mine up for sale, and embarked on the quest for an
affordable multihull that could accommodate my monstrous wish list of
technology while providing enough room for two people to live
aboard. By early 1995, we were hot on the trail of our next
substrate as the second announced departure date quietly passed... once
again forgetting the original motives that called for a bicycle-scale,
human-haulable, sleek little boatlet.
I flew to Texas to sail a whizzy Stiletto, talked to sellers of 25- to
35-foot catamarans and trimarans across the land, and collected study
plans from noted multihull designers. We clambered about a huge
clunky MacGregor 36 “on the hard” in a dusty boatyard, sketched
interiors, made cardboard models, and found ourselves gravitating
toward a Hughes 30-foot cylinder molded “tube cat”... only to discover
after chalking a hull cross-section on the wall that it would be like
living in a parallel pair of narrow tunnels. We backed off,
recognized the structural advantages of a tri, and homed in on a
Marples Seaclipper—something that could be homebuilt of plywood and
epoxy. But the 2-year, $25,000 investment necessary to arrive at
the start of electronics packaging was, despite no-doubt interesting
learning curves enroute, a daunting reality. The calls and
research continued. Somewhere there had to be a boat that was
complete enough to give us a head start but not so complete as to be
unaffordable.
I was speaking one afternoon with Mike Leneman of Multihull Marine
in
Marina del Rey, and he was explaining that what I obviously need is an
F-31 “kit.” For only $52,000, I could buy a sleek folding
trimaran shell with no interior or rigging... and hey, it comes with a
free trailer! I chortled, wincing inwardly at the thought of my
bank account, and told him that I’m a freelance writer who has managed
previous technomadic projects through the twin miracles of sponsorship
and industrial scrounging. I gave him a capsule summary of
BEHEMOTH and the Microship,
and was about to hang up.
“Wait!” he cried. “I have your boat right here!”
Figure
5—Hogfish, a 30-foot folding trimaran
$5K later we were the owners of an eccentric boat dubbed Hogfish
(Figure 5)—a precursor to the F-31, built by John Walton and Mike
Michie in 1983 just before they started Corsair Marine. It used
the elegant Farrier folding system, and had been fabricated by
folks for
whom money was no object: carbon-fiber crossbeams, Klegecell-cored
S-glass/epoxy composites, Lewmar hatches, aft cabin, custom hardware
from stem to stern, and (originally) a carbon wing mast fabricated by
the legendary Burt Rutan. But Hogfish
had spent the past few
years languishing on a rustbucket trailer in a graffiti-decorated Los
Angeles storage yard, and as I hauled the swaying mass gingerly down
I-5 to San Diego, I felt like I was pulling a jailbreak.
Even though we had no place to work on it—certainly not the third-floor
lab at UCSD—we were convinced that this was the solution. Control
and front-end systems continued to evolve on the bench as more students
took on projects. Now and again I would make a pilgrimage to the
boat, sometimes accompanied by a marine architect or rigging wizard who
would hold forth as I made notes. But the TO-DO list on the
substrate itself was outpacing my available time, skills, workspace,
and funding.
Before long a new problem emerged—the inevitable loss of the UCSD
lab. We embarked on another epic cross-country combination
speaking tour and space quest, making inquiries so similar to those of
1993 that they have all run together in my memory, and from a pay phone
in a Key West bar learned that Apple Computer had come to our rescue by
leasing a 2,000 square-foot building for us in Santa Clara.
Instead of making occasional pilgrimages to visit Hogfish in a dirty
overpriced storage yard, it would become the centerpiece of our living
and working space! Although it was a windowless, noisy,
fluorescent-lit, relationship-stressing concrete tomb under the San
Jose airport departure path, it was perfect in a twisted way (and
free). We hauled Nomadic Research Labs up the coast and moved in.
By February of 1996, we were immersed, making sluggish but steady
progress on a rotating deck-stepped 40’ sloop rig and essential
fiberglass structures, while continuing to refine the on-board network
and control tools: video turret, crossbars, data collection, and
graphic front end. But something fundamental was missing and I
was loathe to let myself see it.
I started getting a few hints of it during the extended breakup with
Faun, still more by observing the time I wasted on pointless web
surfing, hanging out on CU-SeeMe, and furtively playing computer
games. The passion had skulked off in the night through the grime
and traffic of Silicon Valley, leaving me saddled with a too-large
project that had come to feel like a dead-end job. The volunteer
teams that had defined the very heart of BEHEMOTH and the UCSD era
seemed to have disappeared entirely; the Nomadness mailing list that is
my core network community bided its time, saying little, waiting
quietly for completion of the yacht or, more likely, the fizzling of
the whole stupid idea. It had simply gotten too big for one
person to manage, and it was no longer really my dream anyway—what, me
a yachtie? Hell, I couldn’t even refer to the boat as
“she.” I never sat in the cockpit with a beer and fantasized
misty-eyed about romantic adventure; I just half-heartedly plugged away
at a TO-DO list that never got shorter.
I was doing things that I didn’t enjoy to build something that I not
only didn’t want, but had trouble imagining. That’s hard to admit
when the world is still sending bright-eyed reporters around to do
breathless interviews with the high-tech nomad. I pushed my
misgivings into the background and kept at it (documented fully here).
Figure
6—Slaving away on a new double bulkhead. This was not
fun.
Microship 4.0—Embarking on a Non-sequitour
But in the Spring of 1997, with Faun gone, continued Apple funding
uncertain, expenses skyrocketing, keynote bookings down, and the
IN-DEEPER basket more intimidating than ever, my world changed
completely.
It was Sunday, March 23, and I paced the lab like a caged animal,
constrained to a windowless rectilinear space with artificial
light. Vague dreams of unrealized aquatic adventure were driving
me to odd behavioral sublimations; long-forgotten urges burbling deep
in my reptilian brain.
At the center of the lab stood the Icon
of the Dream, covered with
dust, tools, respirators, Shop-Vac, and the funky detritus of
fiberglass hackage. Surrounding Hogfish
on all sides were
cluttered benches, shelves laden with expensive nautical and electronic
hardware, uncategorizable clutter, chip databooks, sticky epoxy fixins,
a maze of cables, computers, and other stuff—all uniformly coated with
gray dust. I paced. I climbed the steps to the cockpit,
paused, and descended. I idly picked up the AIR Marine wind
generator and spun the shaft to make the LED flicker. I peered
through a port into the aft cabin and stared at the battery bank,
putzed ineffectually with the flute for a moment, and scanned the
“Fiberglass Projects” list densely occupying one of four whiteboards,
hoping as always that I could erase something… but no. I randomly
picked up the April ‘96 issue of Sail
Magazine and thumbed the pages,
absently, as one might flick one’s eyes over a rack of postcards at a
checkout counter.
Understand, we’re talking major restlessness here. A half-decade
in Microship labs or on a quest for same; the bike (now the world’s
most expensive boom box) wailing the blues while mercilessly taunting
me with road-dirty wheels and a design optimized for movement.
Ah, memories. Feeling like an old timer lapsing into reverie, I
ignored the relentless itch of instincts unfulfilled, consciously
turned my back on the TO-DO list, slumped on a lab stool, and started
browsing the magazine.
Ah yes, that article. One of my favorites—the comparison of
“sailing kayaks”: the familiar Fulmar 19, the fast rotomolded
WindRider, the Balogh Batwing, the racy foiled Triak, and the pretty
wood Chesapeake Light Craft SailRig—all sleek, light, fast, exciting
little boats. <sigh> Aching images of the Fulmar
adventure with Faun bubbled past my barnacled brain as I read the piece
again, lingering on the pictures, recalling the fantasy that started
all this back in 1991, pedaling BEHEMOTH
up the Wisconsin shore of Lake
Michigan while daydreaming about gizmological boatlets—but no, no, stop
thinking about that! I’ve been there; the Fulmar was too small,
THIS is the boat, this is the boat I have to finish NOW. I
looked, almost guiltily, at Hogfish
and felt… nothing.
Wow. Never really noticed before, but gee, now that I thought
about it… I really haven’t had much of an emotional connection with
this boat, have I? It (not she) is a good logical solution to the
stated design goal, which had something to do with a trailerable
platform for a happy couple on the technomadic adventure trail.
But what about the passion, the heart of this whole project?
Suddenly alert and suspicious at the scent of Major Change in the air,
I stared at the boat, then back at the magazine… then back at the
boat. The toggling between adrenaline and yawns was too obvious
to ignore, and I was instantly embarrassed that I hadn’t noticed this a
year earlier.
Five years in the lab had turned me into exactly what I fled so long
ago, while out there, not really so far away, were quiet coves
sparkling in the moonlight, mist-shrouded rivers sussurating through
canyons of naked rock and verdant green, sun-splashed beaches that
beckon like eternal visions of idyllic summer vacation, campsites abuzz
with chittering and aglow with firelight, those first long swallows of
cold beer after an all-day haul, the spark of delight in the eyes of a
suntanned friend, the rush of a reach that hardens the sail and foams
the wake, the magic correlation between dead reckoning and a fix, the
astonishment of a satellite email packet, the crackle of a ham radio
contact in the wilderness, the delicious incongruity of backlit LCDs
during a night sail, the tales that fly when nomadic spirits recognize
each other and pause to share the calm moment of sunset, the
adrenaline-pumping madness of nature’s fury, the love, the joy, the
perspective, the living…
Maybe big boats make more practical sense, but I didn’t care. It
was time; ancient urges were surfacing in a sort of Spring Fever of the
Soul. Life was passing; pheromones were in the air, restlessness
in the night.
Without a moment’s hesitation, I reached around to the back of my head
and hit the reset button.
Wordplay and Songline
In a rush, the original fantasy returned, not without a bit of deja vu:
“a full-scale technomadic overlay onto a tiny nautical substrate,
elegant and swift.” Seems I had said those words before.
Looking back at the feature bloat and compounding complexity that had
somehow eclipsed the sleek little kayak-based design, I cringed with
embarrassment at how easily I had become caught up once again in The
BEHEMOTH Effect, even though I
had recognized the phenomenon clearly
enough to give it a name and joke about it in my online Microship
status reports (of which there had been 119 by this point).
Within days, I had a clear design goal: a pair of canoe-scale
micro-trimarans with pedal, solar, and sail propulsion. There
would be enough room between the bulkheads of each boat to retract the
seat and sleep aboard, deployable landing gear would allow unassisted
haulout and “road mode,” and all electronics would be embedded in a
single control console. Everything else was scaled to fit, from
the sensor suite to life-support tools, and I was startled to discover
that even though I was restarting almost from scratch, the TO-DO list
was shorter (and cheaper) than the corresponding one associated with
Hogfish. And although I
feared that my online readers would throw
up their hands in exasperation at yet another fundamental change of
direction, I was amazed to receive over 80 congratulatory emails within
a week of posting the announcement… and only one telling me I was
insane to consider going to sea on anything smaller than a megayacht.
By June the lab was abuzz with energy, more incubator than cage.
The proliferation of electronic systems was now capped at a reasonable
level, and it actually began to appear that it would be possible to
complete this project within my lifetime.
There was another factor adding energy to the equation… the latest
episode in my cyclic love life, wherein each wave of passion spills
over into my projects and propels them into a new phase. (Some geeks
use Jolt Cola, others ESOP’s fables. Personally, I prefer
the intoxicating buzz of romance.) After initial email contact on the
day of the epiphany and 1.2 Megabytes of spirited correspondence over
the ensuing seven weeks, Natasha arrived from London and transformed my
life. We survived the deliciously exhausting period of mutual
discovery, found a buyer for Hogfish,
and threw ourselves full time
into the development of the twin boatlets that were, at last, moving in
the right direction. After spending half a decade investigating
and discarding various misguided notions, I gotta tellya, this was
heady stuff. I could actually smell the salt water, the aroma
wafting all the way from Alviso through miles of industrial parks and
into our sterile little concrete world.
Figure
7—Piloting the CAD (Cardboard-Aided Design) model in the Santa
Clara lab
The energy was back. We used the CAD system to build an
actual-size mockup (Figure 7), and I sat in it for hours, enchanted
by adventure fantasy far more tangible than I had ever felt in the big
boat. Sponsors were immediately responsive to this sleek,
human-scale design, and within weeks the essential components were on
hand: Wenonah Odyssey canoes, WindRider sail rigs, Minn-Kota
thrusters, even a 100-pound roll of fiberglass cloth from my old friend
David Berkstresser. We contracted Fulmar (now in Canada) to
fabricate the amas and akas, and found a local boat builder to
make carbon-skinned, foam-core rudder blades. And a human-powered
vehicle and composites guru from Salt Spring Island, Bob Stuart,
arrived in the lab, bearing one of his Spinfin
pedal-drive units and
diving in to help on overall design and fabrication.
But one last problem had to be solved. Apple was in a downturn,
and “non-essential programs” were getting killed off left and
right—including the lease on our building. For the last half of
1997, I was thus paying rent on 2,000 square feet in Silicon Valley,
something that would have been fatal if it hadn’t been for a few
well-timed speaking gigs and the assistance of my father in
Kentucky. But now what? A third round of free lab questing
had turned up nothing, and damn it, I was starting to want my own
workspace, unaffected by politics, corporate priorities, and the
economy.
As the end of the lease drew nigh, our world became a bizarre,
bifurcated reality of fiberglassing and boxing—Bob’s creative efforts
yielding ever more interesting results even as the workspace collapsed
around him and his intrepid apprentice, Natasha...
“Where are
those neoprene strips you found?” he asks, looking for
gasket material to use on the hinged console cowling.
“Ah, just a second.” I scan the moving inventory, already cataloguing
the contents of over 200 boxes, find the reference to carton number
L-13 (a plum of a Silicon Valley dumpster-diving prize—thousands of
identical strips of the stuff, cast off by some anonymous corporation),
and after a few moments’ scurrying slit the tape, tease out a few, and
thread my way between packed piles and the Zone of Goo to pass them to
Bob.
Work continued in this convoluted fashion until the twin mega U-Haul
fuel guzzlers rumbled into the parking lot and cozied up next to the
Mothership, their gaping maws all in a row, ramps lolling like tongues,
hungry for boxes and lab furniture. In one nightmarish weekend, we
optimized packing density to the point of exceeding legal weight limit
specs and hit the road… a convoy of three trucks and two trailers held
together by walkie-talkies, with 26 wheels on the ground and an
aggregate fuel economy of 2.5 miles per gallon.
We aimed ourselves at Bellingham, Washington for no good reason other
than having a vague affection for the town, shoveled everything into
two huge units in a self-storage facility, and rented a room on
Christmas day with three young folks who never did quite figure out
what we were all about. The next two months were a blur of
house-hunting and crawling through tunnels in our frozen possessions to
extract essential bits; although I did manage to bang out a couple of
articles for Dr. Dobb’s Journal
and CQ VHF, I was starting to
wonder
when we’d again be slinging epoxy and gearing up for adventure.
Nomad is on Island
Desperate to get back to the project, we considered everything from a
falling-down old shipyard in Blaine to a musty barn with crashable loft
and rentable doublewide, but instead fell into a 6-acre slice of
sociobotanical nirvana on an island in the Olympic rain shadow. We
moved into a well-insulated little house and erected a 3,000
square-foot pole building back in the woods, with a hushed 1/8-mile
sylvan commute connecting the two. It still seems dreamlike and
surreal, even though I’m writing these words four years later in that
building nestled deep in the forest, with crisp MP3s pouring from USB
speakers hanging off my iBook and Java-the-cat purring on my lap. It’s
strangely circular, becoming a homeowner to facilitate the resumption
of nomadness.
Camano Island is an 18-mile-long dongle hanging between Whidbey Island
and the northwest Washington mainland. It is linked to the latter by a
bridge to Stanwood at the north end, rendering it a strange blend of
relaxed island mentality and drive-on convenience. We’re on the west
side, close enough to the shore that we can see across Saratoga Passage
from the house and walk amphibian boatlets a mile to a public launch
ramp for test sails and mini-expeditions.
Figure
8—The house on Camano Island. The Microship lab, a
separate building, is about 750 feet back in the forest.
The house is a tightly-engineered structure with passive solar heating
(actually useful sometimes, despite what you’ve heard about the Pacific
Northwet). The interior has an open-beam ceiling, red-oxide tinted slab
floor, and galley-style kitchen with a glass wall to the solarium (the
hydpoponics, dehydrating, and vacuum-packing facility). There’s a
Danish woodstove, propane-fired radiant heat backup system, a Japanese
soaking tub we never use, a proper hot tub outside, and one-foot-thick
R-40 structural foam
panels comprising the ceiling. It has won design awards and been
featured in Fine Homebuilding
(Issue #94). None of this has
anything to do with the point of the whole exercise, but having a cozy
place to live is rather amusing after years of outlaw camping in
windowless labs, cooking on a hotplate and showering in the sink.
The building itself was a weird lesson in economics: the previous
facility was an industrial slum by Silicon Valley standards, yet
we erected a spacious 3,000 square-foot structure on the island for
what it would have cost to rent the same space in Santa Clara for 14
months. In the process, I was dragged deeply into things I know
little about, wrote far too many checks for lumber, and sweated over
structural and electrical inspections. But at last we turned on
computers, organized parts inventory, and stopped thinking about boring
stuff like humidity management, stringing power and phone wire through
trenches, and how to get a recalcitrant bundle of electrical cable
around the overhead door.
The lab is a 40x56-foot “monitor-style” pole building with a second,
narrower floor as wide as the space between the two inner rows of
poles. This gives us about 750 square feet of office space separate
from the gritty realities of the lab below, with a stairway along the
back wall emerging into the “gear room.” A large central area
comprising three bays is the place for video production, publication of
technical monographs, conjuring fabric projects on the Sailrite
machine, and the Nomadic Research Labs business office. Winding through
this is the path to my little sanctum sanctorum, a carpeted nook where
I write, schmooze, and surf. (That’s my window at the top in
Figure 9.)
Figure
9—The Microship lab, a 3,000 square foot pole building
But the real action is downstairs. I went on a bench-fabrication
frenzy, integrating 180 square feet of permanent workbenches along the
walls in the Zone of Hackage.
All this is adjacent to my boat bay,
allowing a long in-utero system packaging phase without driving
everyone crazy with dangling umbilici. The other boat is in
dust-controlled space (complete with industrial air cleaner) adjacent
to the fiberglass shop; remaining lab space is given over to the
workshop and a huge wrap-around Hall
of Inventory that segues from
hundreds of small-parts drawers to a rank of shelving units and on into
the tool crib and stand-up racks for sheet stock. There’s a drill
press, table saw, sheet-metal brake/shear, belt sander, grinder, and
the usual tool-strewn benches for dirty work. And near the front
door, Miss Piggy (the woodstove) helps chase the northwest chill—as
long as I slavishly devote myself to keeping her fed.
The only irritating problem is that I can no longer blame the
environment for low productivity. Having a sense of long-term
home is a bit weird, for a nomad, but I try not to let it get to me…
although I have become involved in an environmental group and find
myself writing letters to the county and the local papers whenever
action needs to be taken against the ravages of irresponsible
development or commercial logging on our fragile little island.
We even bailed out of NASDAQ just in time to rescue the adjacent five
acres from some idiot who wanted to clear-cut it and put up a
double-wide with the proceeds. (In the long run, land purchase
was cheaper than homicide.)
It’s a pain to care about a place, but nice to have a place to care
about.
R&D in the Boonies
Once this infrastructure was established, it was at last possible to
get back to work without fretting over future lab upheavals—but one
lingering problem remained. How could we achieve a critical mass
of development energy out here in the woods, on an island far from the
geek culture of Silicon Valley and teams of grade-motivated engineering
students?
Not surprisingly, the Internet holds the answer. It’s difficult
to recall a time when there was not a vast, globally distributed
resource of brains a few mouse clicks away, but when I was building the
Winnebiko, my “intellectual
support” network was limited to a few
friends in Columbus, Ohio. Now, we have brilliant software
developers and volunteers whom I’ve never even met.
Every now and then, I post a Microship
Status Report to the
Nomadness
mailing list. These updates, usually quite technical
unless there has been a recent adventure to eclipse the geeky bits,
constitute the ongoing narrative of the project; quite often, along
with the tale of recent developments, I’ll toss out a question or
wonder aloud about something. By early 2002, there were an
estimated 5,000 people who read each issue, and it had reached the
point where any puzzle, no matter how obscure, would be solved almost
immediately. Coupled with Googling my way to websites and Usenet
archives, it has pretty much reached the point where any technical
question can be at least partially answered within a few minutes
(usually with lots of interesting side trips enroute).
But that still doesn’t distribute the workload. To accomplish
that, we have a casual but effective volunteer program, including the
ever-popular “Geek’s Vacations.” Every now and then, someone will
become interested enough in the Microship project to take a break from
their real job, travel to Camano Island, and live with us long enough
to bring a new system online or solve a challenging design
problem. We provide food, espresso, beer, and general
amusement. They provide genius. When you add the remote
volunteers who write code at home, the Open-Source development
community, and a team of 50 or so consultants ready to brainstorm ideas
whenever I call with a question, the result is a formidable brain trust
that most companies would kill for. It’s a shame that my
management skills still suck, but somehow we muddle through.
Some people even move in. Bob Stuart was a regular fixture here
for quite a while, applying his formidable mechanical design and
fabrication talents to the epic landing gear project, fiberglass
shaping, and just about every structural component in my boat.
Ned Konz dropped by for a brief visit at the tail end of a recumbent
bicycle adventure around the Western US, and stayed for 3 months to get
me properly inculturated in Linux and do the initial design of the
control system. (He’s now living nearby and continues to
participate heavily in software development.) And Natasha, before
jumping ship to pursue her own dreams, applied Bob’s gentle coaching
and her own liberal supply of elbow grease to build the sister-ship,
Songline.
It’s still remote and often lonely here, but the project moves forward
as long as there’s motivation to drive it. So what about the more
mundane issues, like acquiring parts? In Silicon Valley, I could
hop in the truck and be happily prowling the musty aisles of
world-class electronic-surplus emporia within minutes.
Again, technology to the rescue. Any data sheet I want is stashed
out there on the Web as a PDF; anything I need to order, however
obscure, is available. The ultimate hardware store,
McMaster-Carr, is
not only way better than anything within 100 miles of
here, but I can have the stuff delivered by UPS the next day.
Electronic parts? In the old days, the only sources of the latest
goodies were stuffy distributors and smarmy manufacturer’s reps who
only wanted to talk to Big Accounts; other than that, we were stuck
with the tired old catalogs and mail-order surplus. But the world
has changed; it’s now a simple matter to find even the most esoteric RF
connector or surface-mount miracle chip, download the data sheet, crank
out a PC board, and have it blinking in a day or so.
Boonies? What boonies?
So. We finally had it all: a stable Microship design goal,
spacious facilities, smart people, unlimited information, and access to
parts. It was time to get to work.
Five years passed. It was a blur of fiberglassing, wall-staring,
knuckle-busting, grinding, painting, sanding, machining, anodizing,
welding, wiring, testing, rebuilding, researching, and rebuilding some
more… and it took its toll on relationships, finances, and
sanity. If you want to relive the whole bizarre epoch, you can
read all about it in the Microship Status Reports—it’s actually a
rather amusing tale, assuming you have a twisted sense of humor and an
enduring voyeuristic fascination with unfolding complexity, wrong
turns, gotchas, oh-shits, by-the-ways, and the countless other
nightmares that characterize any attempt to engineer your way around a
moving target.
But that gonzo decade of development is behind us—so enough with the
history! How do we turn a
romantic geek daydream into something tangible? The Microship
Substrate article you will give you a detailed first look at the
boatlets...