THE "PERFECT ( being horizontal ) TRIM" HOAX

[dmaziuk]

Will muscular tension increase oxygen consumption?

That doesn't translate to gas mileage.

 

[Blackcrusader]

I'd never be in a vertical position -- it's too uncomfortable, cold, affects diving, can't move around using fins... -- so can't help you with the gas consumption I'm afraid.

I invite you to come dive with me in Asia in warm water where you don't even need a wetsuit. It's so comfortable. Raja Ampat awaits you I'm going there in October. Dive op only has 21% no nitrox but the dives are shallow water in the sunshine.

 

[Bob DBF]

The test : oxygen consumption by a diver in a horizontal vs a vertical position

Any particular reason to be using oxygen for the test? Air would help keep the costs down on the study.

 

[Jake 10]

Any particular reason to be using oxygen for the test? Air would help keep the costs down on the study.

Bob that is correct, I meant to say air instead of oxygen

 

[Blackcrusader]

Trim of a DM staff member at Savedra Dive Center in Moalboal Cebu Philippines...

They train them well from OW to DM....

 

[Kimela]

Trim of a DM staff member at Savedra Dive Center in Moalboal Cebu Philippines...

They train them well from OW to DM....

A thing of beauty. No hand sculling, just the lazy flip of a fin here and there.

 

[Blackcrusader]

A thing of beauty. No hand sculling, just the lazy flip of a fin here and there.

Yeah the IDC Course director I knew before she became an instructor. Sevedra Dive Center offer a work training program for people where the dive shop sponors the courses. So staff start working at the dive shop filling tanks helping customers get their gear to the dive boats then start from OW and are trained to DM and the exceptions ones can get their instructor course sponsored as well. So they stay on as working professionals.

Yeah so this was my DM and when he wasn;t looking I took this video. Gave it to the DM as well. He was a lot of fun out of the water as well.

 

[dumpsterpurrs]

I use about 0.8 litres of oxygen per minute when relaxed in horizontal trim; poking around inside a wreck, etc. Double that or more when task loaded or finning hard. Last dive was 2 hours duration and used 130 litres (43.71 bar of a 3 litre cylinder according to Shearwater)

I'm very very confused by these numbers. I thought divers' air consumption rate at sea level is minimum >6L/min, with experienced divers averaging 15L/min. Wdym yours is 0.8L/min??? 130L in 120 minutes??? What???

 

[rongoodman]

He’s on a rebreather, not open circuit. O2 is only added as needed.

 

[dumpsterpurrs]

He’s on a rebreather, not open circuit. O2 is only added as needed.

Ohhh I was wondering why he said oxygen vs air too. That makes sense! I'm an OC diver who's wholly ignorant of anything CC. Thanks for the explanation!