Do you have any comparison of the drag forces of DIR setup vs.
non-DIR jacket BCD setup??

        Charlie Allen

----- Original Message -----
From: "Rogers, Thomas A" <Thomas.Rogers@PS*.Bo*.co*>
To: <techdiver@aquanaut.com>
Sent: Thursday, August 02, 2001 1:39 PM
Subject: Drag force generated by a diver in the water


>
> I ran some calculations on the Drag force (lbs) which would be
generated by a diver in the water as a function of the current.
>
> These are ROUGH numbers.  I am also assuming this test subject
has perfect trim and is not moving.
>
> The test subject was 220 lbs and 76 inches tall. I ran 4
configurations.  I used PST 104 tanks and a 6 in EE light
>
> Streamlined means Basic DIR setup with canister light and legs
straight.
> Bent Knee means Basic DIR setup with canister light and legs
bent.
>
> Current Velocity (knots) 1 2 3 4 5 6 7
> Streamlined -single 9 36 82 146 227 327 446
> Bent Knee - single 16 67 151 269 420 605 823
> Streamlined -Double Tank 10 42 94 168 262 377 513
> Bent Knee --Double Tank 18 73 164 291 455 655 891
>


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