Re: [PSUBS-MAILIST] retractable forward planes

["Rick and Marcia" <empiricus@telus.net>]

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Hi, Dave, thanks for the feedback.  (BTW, I've put my reply back onto the
list).

One sided retraction would limit me to always approaching docks and so forth
from one side of the sub.  Prevailing winds, waves, marine traffic could
dictate otherwise.  My new design doesn't resemble my original one at all
but it serves the same purpose.

I've decided to use two racks and a pinion gear housed in a square tube.
The whole tube rotates around the lateral axis to tilt the planes.  The
racks are internal to the tube and travel on guide wheels.  An automotive
solenoid motor (attached to the tube) would rotate the pinion gear and move
the racks in and out until they hit limit switches. Each of the tube's ends
rotates around a Lazy Susan (my own version).

I'd like to assemble as much of the sub without having to access industrial
suppliers for special bushing/bearings, etc., hence my own Lazy Susan
design.

Warm regards,
Rick

ps: diagrams available if requested.  One of a WWII fleet boat's planes and
the other my rack and pinion design.
  ----- Original Message -----
  From: Fly Deep
  To: empiricus@telus.net
  Sent: Saturday, August 21, 2004 3:28 AM
  Subject: Re: [PSUBS-MAILIST] retractable forward planes


  Off list

  If it's used for pulling up along side dock and what not....You might
consider making only one side retractable.  It would be relatively easy to
make one side so that it only needs to slide in side a tube?????   Dave


    Hi, Pierre . . .

    No, the retractable planes are for use dockside to prevent damage. I'd
like
    to retract them from the cockpit while approaching docks, other vessels,
    boat ramps, etc.

    Rick


    ----- Original Message -----
    Subject: RE: [PSUBS-MAILIST] retractable forward planes


    > hello,
    >
    > Is the retractable planes only for transport? If so, you could only
use a
    > simple hinge and pin to lock in place...
    >
    > Pierre
    >

    > >Hello all . . .
    > >
    > >A long time ago I designed retractable forward planes for my
sub-to-be.
    > >I've since lost the paperwork and I haven't for the life of me been
able
    to
    > >remember how I did it.
    > >
    > >Does anyone know how the military boats do it? I could sit down and
    design
    > >something new but I simply don't have the time.
    > >
    > >As I would like the planes withdrawn into the hull like a Typhoon,
and
    not
    > >just lifted up like a diesel electric WWII fleet boat, I was thinking
    > >rack-and-pinion with a solenoid but I'd like to keep the electrics to
a
    > >minimum for obvious reasons.
    > >
    > >A lever actuated hydraulic (muscle powered) with a long throw piston
at
    the
    > >planes end might work.
    > >
    > >Any thoughts? No doubt the answer is ridiculously simple.
    > >
    > >Rick



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