As a child, I cherished the Eighties aquatic journey present Danger Bay. True to the TV present’s title, hazard was at all times lurking on the Vancouver Aquarium, the place the present was set. In a single memorable episode, younger Jonah and a buddy get trapped in a sabotaged mini-submarine, and Jonah’s dad, a marine-mammal veterinarian, involves the rescue in a bubble-shaped underwater automobile. Great things! Solely just lately—as in once I began engaged on this column—did I study that the rescue automobile was not a stage prop however relatively a real-world analysis submersible named Deep Rover.
What Was Deep Rover and What Did It Do?
In-built 1984 and launched the next 12 months, Deep Rover was a departure from commonplace underwater autos, which generally required divers to lie in a inclined place and look via tiny portholes whereas tethered to a help ship.
Deep Rover was designed to fulfill human curiosity in regards to the underwater world. Because the rover moved freely via the water right down to depths of 1,000 meters, the operator sat up in relative consolation within the cab, inside a transparent 13-centimeter-thick acrylic bubble with panoramic views—an inverted fishbowl, with the human immersed in breathable air whereas the ocean creatures appeared in. Used for scientific analysis and deepwater exploration, it set a variety of dive data alongside the way in which.
Submarine designer Graham Hawkes [left] and marine biologist Sylvia Earle [right] got here up with the thought for Deep Rover.Alain Le Garsmeur/Alamy
The crew behind Deep Rover included U.S. marine biologist Sylvia Earle and British marine engineer and submarine designer Graham Hawkes. Earle and Hawkes’s collaboration had begun in Might 1980, when Earle complained to Hawkes in regards to the “silly” arms on Jim, an atmospheric diving suit; she didn’t understand she was complaining to considered one of Jim’s designers. Hawkes defined the problem of designing versatile joints that might face up to dueling pressures of 101 kilopascals on the within—that’s, the traditional atmospheric stress at sea degree—and as much as about 4,100 kPa on the skin. However he listened fastidiously to Earle’s want listing for a helpful manipulator. A number of months later, he got here again with a design for a perfectly dexterous arm that might maintain a pencil and write normal-size letters.
Earle and Hawkes subsequent turned to designing a one-person bubble sub, which they thought-about so sensible that it will be a straightforward promote. However after failing to draw funding, they determined to construct it themselves. In the summertime of 1981, they pooled their assets and cofounded Deep Ocean Know-how, organising store in Earle’s storage in Oakland, Calif.
Phil Nuytten, a Canadian designer of submersibles and dive methods, engineered Deep Rover.Stuart Westmorland/RGB Ventures/Alamy
They nonetheless discovered that prospects weren’t thinking about their crewed submersible, although, in order that they turned to unmanned methods. Their first contract was for a remotely operated automobile (ROV) to be used in oil-rig inspection, upkeep, and restore. Different prospects adopted, they usually ended up constructing 10 of those ROVs. In 1983, they returned to their authentic thought and contracted with the Canadian inventor and entrepreneur Phil Nuytten to engineer Deep Rover.
Nuytten didn’t must be satisfied of the worth of the submersible. He had grown up on the water and shared their dream. As a young person, he opened Vancouver’s first dive store. He then labored as a business diver. He based the ocean- and research-tech corporations Can-Dive Providers (in 1965) and Nuytco Analysis (in 1982), and he developed superior submersibles in addition to diving methods. These included the Newtsuit, an aluminum atmospheric diving go well with to be used on drilling rigs and salvage operations.
Deep Rover’s first task was to spice up offshore oil exploration and drilling in jap Canada. Funding got here from the provincial authorities of Newfoundland and Labrador and the oil corporations Petro-Canada and Husky Oil. However the collapse of oil costs within the mid-Eighties made it uneconomical to function the submersible. So the rover’s mission broadened to scientific analysis.
Deep Rover’s Technical Specs
The pilot may function Deep Rover safely for 4 to six hours at a depth of 1,000 meters and speeds of as much as 1.5 knots (46 meters per minute). The submersible may very well be tethered to a help ship or transfer freely by itself. Two deep-cycle, lead-acid battery pods weighing about 170 kilograms apiece supplied energy. It had a VHF radio and two frequencies of through-water communications, plus monitoring beacons.
From 1987 to 1989, Deep Rover did a sequence of dives in Oregon’s Crater Lake, the deepest lake in the US. Throughout one dive, Nationwide Park Service biologist Mark Buktenica [top] collected rock samples.NPS
The rover’s 4 thrusters—two horizontal mounted aft thrusters and two rotating wing thrusters—may very well be activated in any mixture via microswitches constructed into the armrest. The pilot navigated utilizing a gyro compass, sonar, and depth gauges (each digital and analog).
A lot to Earle’s delight, Deep Rover had two wonderful manipulators, every with 4 levels of freedom, thus fixing the issue that had began her down this path of invention. The pilot managed the manipulators with a joystick on the finish of every armrest. Sensory suggestions methods helped the pilot “really feel” the pressure, movement, and contact. The 2 arms had wraparound jaws and will elevate about 90 kg.
If one thing went fallacious, Deep Rover carried 5 days’ price of life help shops and had quite a lot of redundant security options: oxygen and carbon dioxide monitoring gear; a halon (breathable) hearth extinguisher; a full-face BIBS (built-in respiratory system) that tapped into the starboard air financial institution; and a floor fault-detection system.
If wanted, the rover may floor rapidly by jettisoning gear, together with the battery pods and a 90-kg drop weight within the ahead bay. In dire circumstances, the stress hull (the acrylic bubble, that’s) may separate from the body, taking with it solely its oxygen tanks, strobe, through-water communications, and wing thrusters.
Deep Rover’s achievements
From 1984 to 1992, Deep Rover performed about 280 dives. It inspected two of the tunnels close to Niagara Falls that divert water to the Sir Adam Beck II hydroelectric plant. In California’s Monterey Bay, the rover let researchers movie beforehand unknown deep-sea marine life, which helped set up the Monterey Bay Aquarium Analysis Institute. At Crater Lake Nationwide Park, in Oregon, Deep Rover proved the existence of geothermal vents and micro organism mats, resulting in the safety of the positioning from extractive drilling.
Deep Rover was featured in a short film proven at Vancouver’s Expo ’86, the primary of a number of TV and film appearances. There was Hazard Bay. Director James Cameron used an early prototype of the submersible in his 1989 movie The Abyss. Deep Rover additionally made an look in Cameron’s 2005 documentary Aliens of the Deep.
In 1992, Deep Rover got here to the tip of its working life. It now resides at Ingenium, Canada’s Museums of Science and Innovation, in Ottawa. For a time, Deep Ocean Engineering continued to develop later generations of the submersible. Finally, although, uncrewed remotely operated and autonomous underwater autos grew to become the norm for deep-sea missions, changing human pilots with sensors and gear. New ROVs can dive considerably deeper than human-piloted ones, and new cameras are so good that it feels such as you’re there…nearly. And but, people nonetheless lengthy to have the non-public expertise of exploring the depths of the oceans.
A part of a continuing series historic artifacts that embrace the boundless potential of expertise.
An abridged model of this text seems within the April 2026 print problem as “All Alone within the Abyss.”
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