Re: seeking some F1D tips?

From: izgo <izgo_at_yahoo.com>
Date: Thu, 15 Mar 2007 16:25:06 -0000

Hello Fred,


FT> It sounds like you need more turns, and you need to
FT> improve your winding techniques

Yes, probably im always afraid, traing to avoid destroying
the little amont of rubber I have. I will try to get some
more turns with a handleable torque. This way maybe I can
get the 4 or 5 minutes extra you pointed me.


FT> Are you sure your pitch is 30" your RPM seems low with that
FT> low of pitch.

Well, im not sure. The pitch I say is from the prop-block
where I formed the blade, but blades have a bigger angle
(I use paper tubes to hold spars). How much, not sure because
I set them up by eye.


FT> Are you sure your motor sticks cannot take more torque, if
FT> they can't for sure that should be your next building goal
FT> higher sites will need more launch torque.

I think 0.35 in-oz is pretty close to limit, more than that is
red zone. Im not using boron. Maybe I can improve motorsick
stiffness by adding 4 boro, with a cost of some weight.




FT> The rubber testing program I use is also a good tool for
FT> improving your winding skills tor sticks. Good luck Fred

Got the progam, and already doing some test, trying to match
the numbers you got when tested several batches.

Thanks!

Ignacio.
Received on Thu Mar 15 2007 - 09:25:57 CET