Designs unmanned submersibles for deep-sea exploration
For Whom:
Self-employed; main client is Robert D. Ballard's
Institute for Exploration, Mystic, Conn.
Where He Does It:
Woods Hole, Mass., and Narragansett, R.I.
Fun Factors:
Spends part of each summer at sea and no time in a cubicle
If you've
ever tuned into one of those National
Geographic specials on underwater archaeology, then
you've probably seen Jim Newman's work. You may even
have seen Newman himself. No, he's not the charismatic
oceanographer discussing the extraordinary 2000-year-old
shipwreck that's just been unearthed in the Black
Sea—that would be Robert D. Ballard, Newman's boss. But
you see that busy guy in the background, checking on
data and video feeds and just generally making sure the
research equipment is running smoothly? That's Jim Newman.
For the last five years as chief engineer for
Ballard's Institute for Exploration, in Mystic, Conn.,
and more than a decade before that, Newman has been
designing remotely operated vehicles, or ROVs, for doing
underwater research. His one-of-a-kind machines are used
to survey, excavate, and film sites of scientific or
historical interest hundreds or thousands of meters
below the ocean's surface. Because they're piloted from
the ship, via a long cable, ROVs can be deployed where
it's too dangerous or difficult for a human diver to go.
Mighty Hercules:: Jim Newman's latest creation is a two-armed
excavating robot used for underwater archaeology
and ocean science
Water has always been Newman's element. Growing up
outside Boston, he summered in Woods Hole, on the
southern shore of Cape Cod. He entered the Massachusetts
Institute of Technology intent on studying ocean
engineering and designing sailboats for a living. Though
he stuck with the former, earning his B.S. and M.S. in
1981 and 1986, respectively, he soon gave up the latter.
Instead, he started hanging around the Woods Hole
Oceanographic Institution, the world's leading research
facility for ocean science. As an undergrad, he wrote
software for crunching data and helped build
instrumentation. Later, he got involved in designing
Jason, one of the earliest research-oriented ROVs.
Though no longer employed by the Woods Hole facility,
Newman remains close by. He, his wife, and their three
kids live down the street from where he summered as a
child. Most days, you'll find him in his home office or
puttering around the hangar-like structure at the
University of Rhode Island in Narragansett where his
ROVs are stored.
The hangar has the feel of an auto mechanic's garage,
with spare parts and spools of wire scattered about,
except that the vehicles up on blocks here are
custom-built creations worth hundreds of thousands of
dollars each. In the parking lot outside sit several
shipping containers; they house a video studio, a
computer hub, a repair workshop, and a storage room.
Loading the containers onto an ordinary fishing boat
transforms it into a floating research lab.
Every summer, Newman goes to sea with Ballard's crew,
to places like Turkey, Israel, Malta, Australia, and the
Solomon Islands. Exotic travel aside, what Newman really
loves about his work is its non-9-to-5-ness. "Everything
we do is unscripted," he says. "There are no university
classes to teach you what to do."
Putting together a new ROV is a group effort: Newman
does the conceptual design and then supervises five to
10 other engineers on the electrical, mechanical,
software, and other systems. Each vehicle is a balance
of the general-purpose and mission-specific; its
potential uses run the gamut from archaeology to
oceanography, marine biology, geology, and geochemistry.
A big part of designing an ROV is protecting it from
seawater. "You really shouldn't put stuff in the ocean,"
he jokes. "It's a nasty environment." He points out a
junction box on Hercules, a 2-meter-tall, canary-yellow
ROV used to excavate deep-sea sites. The electronics are
bathed in mineral oil, which is noncorrosive and
nonconductive, and an air bladder puts positive pressure
on the oil.
Because it's too costly to go to sea just to test a
vessel, a lot of bugs get worked out during actual
expeditions. Last summer, for example, a hydraulic line
on Hercules failed at 500 meters and fried its hydraulic
pump. It seemed like a freak accident. They had a new
pump flown in, installed it, replaced the damaged line,
and sent Hercules back down. At 500 meters, another line
blew and the pump failed again. Hercules was now out of commission.
"That's the one I kick myself over—giving in to
wishful thinking and not analyzing what went wrong
before we did it again," Newman says. Since then, he and
a colleague have exhaustively studied the problem; as
best they can tell, several small mistakes led to the
big one—the choice of hydraulic line, the setting on
the hydraulic controls. They're now fixing and upgrading
Hercules and the other ROVs.
"In the big picture, nobody got hurt, and I worry a
lot more about that than about the hardware," Newman
adds. "But the second priority is to have working
hardware, and I failed in that." He's not offering a
heart-rending confession, mind you, just an engineer's
level-headed self-appraisal.
Robert Ballard, for his part, shrugs off last summer's
mishap. "Jim Newman is the personification of the
professional engineer—he's bright, he's honest, he's
unflappable. He designed all these beautiful vehicles,
he put the engineering team together, he's the
troubleshooter....I can't imagine going to sea without him."
Newman's next project will be an autonomous underwater
vehicle, or AUV. Rather than being tethered to the ship,
it will be battery-powered and either self-guiding or
controlled through acoustic signals. Newman has never
designed an AUV but seems confident he can. "Nothing we
use is very exotic," he says. "We're just adapting
standard technology to a very cool application."