----- Original Message -----
From: "bjoenunley via KRnet" <krnet at list.krnet.org>
> At an actuation rate of 12mm or .472 inches per second it will take
> approximately 12 seconds for the belly board to fully extend.
>
> Is that fast enough?
The faster an actuator extends is better. The reasoning being this is that
the retract time will be the same. If you are on approach and have the belly
board fully extended and you need to do a go around or touch and go then you
want the board to retract as fast as possible. The actuator I have on my
belly board is the Van's RV flap actuator. It extends and retracts in 7
seconds. I have actually done a takeoff with the board fully extended. It
was a very slow climb out to say the least but it can be done. I do not
suggest you buy the Van's actuator because they cost $380.00 now. I think I
paid $280.00 for mine back in 2004. Take a look at this link and do a search
on part number:
FA-35-S-12-6 6" stroke Hi-Speed 35 lbs force
List Price: $129.99
Our Price: $118.99
http://www.e-motionllc.com/?gclid=CN_hxM2FxpkCFSQMDQodHipruw
These look very similar to the one I have from Van's.
Mark Jones (N886MJ)
Stevens Point, WI
E-mail: flykr2s at charter.net
Web: www.flykr2s.com