> Yes, you're right about the prop spar.
At least I'm starting to get some things right... :)
> If you are trying to get the maximum time out of your model in a 20'
> ceiling, 1.5 minutes to the ceiling wouldn't be out of line for a
> smooth ceiling site. If you use a prop with too much pitch or
> flare, the models time in the ceiling will be limited, and the motor
> won't have enough torque to use up the turns.
Ok... I didn't know if the flare was supposed to keep it out of the
ceiling, or just increase the pitch while it is up there under high
torque...
> Your latest times with your EZB, show that you are headed it the
> right direction. Don't worry about using a heavier piece of rubber.
> You mentioned that your 17:09 flight had 240 turns left using a loop
> of .038X9". You could decrease the prop's pitch slightly or increase
> the rubber cross section to .040X9" to use up a lot of those
> remaining turns. Try both, but the wider cross section should take
> care of the number of turns left.
That's what I was thinking also... I had one other flight with a
stronger loop that landed with less turns... but I think that it was
too big...
> On your 17 minute flight, did you wind to 1500 turns and a torque
> of .07, or did you wind past 1500 and back off turns to .07? The
> reason that I'm asking, I could get 1800 turns out of a loop of
> 8/93. - .041x9.5", according to some flight records from 1994.
> Except for F1Ds, I don't push my motors, and have maximum torque
> limits for each class that I fly. I would wind a .040 motor from .2-
> .25 inch ounces, and then back off.
I wound to 1650, which was about .15 torque or so, and then backed
off... I launched another flight at .12, and the plane handled it
really well... and I know that I wasn't really close to the max turns
on the motor... I really was just testing and was (pleasantly)
surprised with the time... Now I guess it is time to make a few more
motors and go for some max turns...
Thanks for the advice...
JH
Received on Sat Dec 10 2005 - 12:05:46 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:44 CET