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The name escapes me right now but I read about (and
saw on t.v.) a hydrobatic submarine that has wings and ailerons just like an
aircraft so that instead of
the sub turning like a blimp (wherein the sub stays
upright as it turns slowly) it would instead lean into the curve like an
aircraft which makes
it turn quicker and more smoothly than "skidding"
the turn like an aircraft turning with rudder only.
Essentially this craft is an underwater airplane. I think we will see more subs like this as
time goes on.
Kindest Regards,
Bill Akins.
----- Original Message -----
Sent: Wednesday, May 04, 2005 8:31
PM
Subject: Re: [PSUBS-MAILIST] Dive to
Turn?
I think this might depend a lot on the sub in question
and
it's balance.
I've heard a few people describe there sub turning
on the
surface, but not underwater. The main comment I've
heard
people say about there sub was that it listed to the outside
of
the curve (like a battleship when it's turning).
If a this "listing
like a battleship" was to happen underwater,
giving the rudder a slight off
vertical angle, then I think
the force it might cause the sub to assend
rather than dive.
If the sub was to list more like a motorcycle (in to
the curve
rather than away from it), then the slight off vertical
rudder
angle might cause it to dive.
In both cases, I think the
effect would not be very noticable.
It might be noticable in hydrobatic
submarines like Solo.
Cheers,
Ian.
On Wed, 4 May 2005
17:07:39 -0500
"Cliff McDonald" <cmcdonald@applikonusa.com>
wrote:
> Question: When a sub is turned sharply at speed, using only
the rudder, will
> it dive as well? It seems to me that some roll
would be induced by
> centrifugal forces on the heavy part of the sub
(lower part) which would
> cause the rudder to be in a non-vertical
position and point the sub in a
> turning and diving attitude.
Would this be a problem at speeds of 4-6 knots
> and if so, is it
correctable? Thanks, as always,
> Cliff
>
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