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Jett Britnell Photographics
Life As It Happens

It still works!: Orca Edge Dive Computer

Jett & Kathryn Britnell Posted onMarch 28, 2021 Comments are off
Edge Booklet

The Orca Edge

The Orca “EDGE” dive computer changed everything. Released in January 1983, Orca Industries Inc.’s EDGE was the first commercial dive computer that proved to be reliable. Weighing in at 1.6 pounds, this brick-sized milled-aluminum, EDGE displayed a diver’s theoretical tissue loading in real-time, and enabled users to do full decompression dives to 200 ft./60 m. EDGE is actually an acronym standing for “Electronic Dive Guide.”
Orca Edge Dive Computer – photo by Jett Britnell

Built Like A Brick

I purchased this EDGE in 1988. It did change our diving profiles and Lord knows, I did take it over the edge a few times. Somehow, we always managed to re-surface in agreement, OK, there was that one time on a remote reef in New Caledonia where, if it could speak, my EDGE would have told me… “You’re, done for.” Hey, there were some feeding manta rays somersaulting between 70 to 110 feet deep that I was hell-bent on photographing. I paid for it by pulling some serious deco time wherein I had to sit alone on the edge of a steep drop-off in 15 feet of water at dusk while the zodiac ferried all the other divers back to the mother ship. The dive guides came back for me and I made it back onboard in time for dinner. My trusty EDGE, however, did not emerge from a never seen before “deep freeze mode” until the next morning. Hey, it was the early 90’s, we were young and revolution was in the air. All this to say, in its day, the Orca EDGE Dive Computer was a technical marvel.
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About Author

Jett Kathryn Britnell
Jett & Kathryn Britnell

Jett & Kathryn Britnell are professional Underwater, Wildlife & Expedition Photographers, Explorers, internationally published Scuba / Adventure Travel Writers and Speakers. Both are Fellows in the world renowned and exclusive Explorers Club in New York, Fellows in the prestigious Royal Canadian Geographical Society in Ottawa, Fellows in the famed Royal Geographical Society in London and members in The League of Underwater Explorers. Jett is a member of the highly esteemed Ocean Artists Society, a unique alliance of the world’s top marine life artists, painters, sculptors, photographers, filmmakers, and writers, one of approximately 50 of the World's top underwater photographers who have donated imagery to support The Ocean Agency's conservation initiatives, and is a consultant to Elephanatics, an elephant advocacy organization based in Vancouver, British Columbia, Canada.

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