Re: Control surface configurations (was: Typhoon)

["Allan Gaines" <exfloridians@ecsu.campuscwix.net>]

-----Original Message-----
From: Michael B Holt <michaelbholt@juno.com>
To: personal_submersibles@psubs.org <personal_submersibles@psubs.org>
Date: Sunday, July 11, 1999 05:06 PM
Subject: Control surface configurations (was: Typhoon)


>On Sun, 11 Jul 1999 14:22:58 -0400 "Allan Gaines" writes:
>>    I *think* I've seen pics of some foreign (non-US) subs
>>whose tailplanes were "cruciform" (an "X") instead of a
>>"cross" when viewed from the rear.  Is this why?  To
>>avoid turbulence caused by the sail/conning tower?



>You've seen the photos.   I think it's a Dutch boat that has
>the X-planes.  



    In case anyone remembers, I've still got my pictures of
the sub I saw (near Puerto Rico) with the cruciform<?>
tail.  As soon as someone tells me I can "use" them, I'll
try to scan them and send them to anyone who wants
a look.


>I have a book that explains why X-form works well.  Right now I can't 
>find the book (my Other Half has been on a cleaning rampage, and she 
>might have filed it somewhere).   But I do recall that one very real 



    Don't you HATE IT when they do that? <g>


>advantage is that the sub can bottom without danger to the controls.
>As soon as the book surfaces, I'll provide a complete report.



    Thanks.