Power questions
 

I have a PT Profile which was originally fitted with a MDS.18 engine. It flew, but it seemed to lack enough power to fly well or gain altitude. The recommended engine for this gyro is a .15. Iswitched it over to electric, put on a EFlite 15. Again, it flew, but it was not impressive. Also, recently purchased a completed PT.09. It has a AP.09. With a 7x4 prop Iwas unable to make this little gyro fly. It just does not seem to have enough "oomph". Anyone out there know if my problem is engine (motor) or set-up? Iam looking for any suggestions anyone can offer and while Iam at it, recommendations for best prop sizes for both these gyros would be appreciated. Hope to see many of you at Muncie next month!

Chuck
...somewhere in Indiana...

RE: Power questions
 

I have had simular problems with the power..You must build very light. You have to realize that the rotors do creatate a lot of DRAG.
I tried the PT with an .07. and a PT Profile with the .15 and both did fly.. The PT .25 flys good on a .25.
Just go a step higher in power and back off if it is too much..
See you at Muncie. Leaving here on June 11th.

Jim

RE: Power questions
 

Jim, thanks for the reply. On an earlier PT Profile Ihad a Hong Kong brushless. Idon't remember the details of the motor. I do know it was a lighter motor than the EFlite 15 and that it really yanked that profile around and seemed to have gobs of power. The EFlite .15 seems heavy and sluggish to me. Maybe I need a bigger battery, Ionly had a 1300mAh 3S lipo on there. I don't know what I will take to Muncie, my car is pretty small, but I will be there one or two of the days.

Chuck