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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
----- Original Message -----
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As I would like the planes withdrawn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