Hi All,

I'm just starting into electric flight with a park flyer called Typsy Nipper from Hobby-Lobby. I have a few basic questions about the electric install.

a) I have a Graupner Speed 400 motor. Looking from the front of the motor the drive shaft spins anti-clockwise which is the correct direction for the prop. The motor will be installed with a gearbox which will of course change the direction of rotation out of the gearbox to clockwise. I presume that I will have to reverse the motor rotation by switching from the normal connections to inverse. Does this have any impact on the motor.

b) For the run-in of the motor will i have also to do this in the reverse direction to normal terminal connection

c) Is it worth to install capacitor onto the motor and if so how many and where..?

d) Does the Graupner Speed 400 have bearings that need oiling..? And how do i oil them ..?

Thanks for any help you may give.

Oddball

Hi OB,
It has been a while since running a brushed...but.

A- Reverse the connection to change direction of the motor. If I recall, the GS 400 has the brushes set for clockwise rotation (if facing the front of the motor.

B- Run in the motor to seat or bed the brushes in the correct rotation or clockwise. You can take a regular C battery and tape the motor leads to it and let it run for a couple of hours.

C- A capacitor across the + and - motor lugs
A capacitor from the + motor lug to the motor can
A capacitor from the - motor lug to the motor can

D- I have never had to oil the bearings.

Pictures to help with the Cap placement

what do capacitors do and where get them

The capacitors help to eliminate receiver interfearance caused by the motor.

You can get them at radio shack for a couple bucks.

thanks