Re: Re: My new pennyplane

From: Don Slusarczyk <don_at_slusarczyk.com>
Date: Thu, 24 May 2012 19:28:03 -0400

You will have to keep track of the turns you put into the motor as well
as the torque values as well as when you land how many turns you land
with as well. You may be only putting 500 or 600 turns into a motor that
will take 1300 turns. With the extra turns, the torque will go up so to
help from climbing too fast you backoff some turns to lower the launch
torque and the extra turns will be used for cruise. For example, you put
in 1200 turn and torque is 1.2 in-oz then you back off (unwind) 150
turns then you will see the torque drop to say 0.8 in ounce so now you
have 1050 turns to fly on. Backing off turns will help reduce the climb
rate but also having more turns will allow it to climb slower for a
longer period of time. Best thing would be to get a notebook then write
down what you are doing now, so wind the same as you have but this time
record how many turns, then increase the turns another 300 and record
the new torques and turns and see what happens until you get to the
ceiling. To get good flight times in low ceiling you will have to bump
the ceiling with a Pennyplane but by using the backing off method you
can reduce the rate the model climbs so it does not hit the ceiling too
quickly after launch.

Don S.
Received on Thu May 24 2012 - 16:28:10 CEST