ScubaLawyer wrote: ↑
Sun Apr 07, 2019 5:07 pm
Ok. I was re-watching The Odyssey and found the scene Eben was talking about. Phillipe and his new wife going for a dive and both have their regulators on backwards (cans facing away from the back). Who was their historical diving coordinator? Blasphemy!
My first thoughts were similar when I watched the movie, but then I recalled some forgotten source that mentioned the original production CG45's were meant to be worn in that position. I could understand that with some of the smaller diameter tanks we see in old photos the regulator could be in an uncomfortable position against the back, neck or head. I forgot about it until the new post by ScubaLawyer.
Coincidentally, just 2 nights ago I was reading the book, IMMERSION: 75 Years of Discovery and Adventure
, and found a reference to this very subject. This is a very interesting 160 page book published by Aqua Lung celebrating its 75 year anniversary. Apparently these are hard to obtain, and were given to some or all Aqua Lung dealers. A dealer friend told me he tried to obtain another one for me, but failing that he loaned me his copy, with the suggestion that I take good care of it.
Here is a direct quote, slightly abbreviated, from page 33:
The early prototype regulators were rectangular.... Once production began, the familiar round case was introduced. It was made to be mounted with the yoke facing the diver and the regulator facing backward. The left hose was the intake, the right side the exhaust.... The reason was that the regulator protruded about 1-1/2 times farther than the yoke and screw. It was thought that it would be less likely to hit the diver's head in the head down position. Unfortunately, being bashed by the angular screw was far more painful than hitting the rounded regulator case. So divers began reversing the mounting, which led to the configuration used in today's regulators....
So back to the movie. I don't remember the scene well, but by any chance were the divers using small diameter tanks that may have led them to prefer the regulator "reversed" to keep the cans from pressing into their backs or necks? (Or were they just ignorant?)