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Hello Frank, You don't have to be going very fast in a canoe for the paddle to be hard to keep flat to the direction your heading. I will also have the same basic side thrusters as Dan H. has, that can be rotated 180 degrees. But I think it might be faster to just hit reverse. I'll be using the same Minnkota 101's you are using for my side thrusters so I will not have as much turbulence and drag as Dan H has currently. Also as you rotate those motors, if they are still running in forward, they will perhaps make you dive more or ascend more depending which way you rotate them which might make matters worse. So I would expect one would need to either rotate them very quickly and/or turn off the thrusters before rotating them. Your side thruster/dive planes are different then Dan's, so the dive plane part will try to make you descend or ascend more when your start to rotate them 180 degrees. The double rudder/braking flap configuration, I was working up today for my K-250 should solve my problem with trying to fit two Minnkota 101's in the one rudder I had, and have them far enough apart and also not have the bottom one easily damaged by the sea or lake floor. Each rudder will only move 90 degrees out toward there respective sides. I'm planning to place one thrusters in each rudder and space them about the same distance apart as yours are, and operate them completely manually. Each rudder will have it's own foot peddle and resistance spring to bring it back to it's neutral position when I let up my foot from the peddle, some what like some classic cars brakes. Each foot peddle will have it's own thru hull and long SS connecting rod. So it's just basically doubling the standard K-250 rudder parts. So as you can see it's very simple. But I'm sure we could figure out a way to complicate it over a couple of beers. Your resident possibility thinker ;)' Regards, Szybowski From: ShellyDalg@aol.com Date: Fri, 29 Aug 2008 02:18:19 -0400 Subject: Re: [PSUBS-MAILIST] Stopping Flaps, deep flight To: personal_submersibles@psubs.org Hi Brent. I'm guessing the flaps, like dive planes, need a fair amount of
velocity to be effective. Just not sure how much braking action you'd get with a
slow moving psub. Then there's the reaction time, and the complexity of the
mechanism. Just seems like there's a better way to stop a sub, without having a
complicated system like flaps. Frank D. It's only a deal if it's where you want to go. Find your travel deal here. |