Twin Jet Prop. Question - RC Groups
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Jan 21, 2004, 08:46 PM
Protector of the Innocent

Twin Jet Prop. Question

Hi all, I have a question to ask you experienced pilots out there. I hope it's not a dumb question,although I read a saying once that said "I would rather hear a dumb question than fix a dumb mistake". That said, I have ordered a Multiplex Twin Jet, and will be replacing the Gunther props with Graupner cam props of the same size. Being a "learner driver",and not having experience with a pusher type aircraft (apart from my Fire Bird), I was wondering if it was better to reverse the props or put the props on the "normal" way and reverse the spin of the motor.

Thank you,
Fearless Fly.
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Jan 21, 2004, 08:59 PM
Registered User
RonJ's Avatar

On a "pusher" you run the motors in reverse (red to black, black to red) and the prop runs with the printing to the front of the aircraft. For props on my TJ, I have had good luck wth the Master Air Screw 5.5x4.5. Tower Hobbies have them.
For a little more zip check out articles on timing and breaking in your motors before flying.
Jan 22, 2004, 01:18 AM
Registered User
Cosmic's Avatar
If the TJ is one of the new white or blue 'racer' editions then it should come with a pair of MPX long can 480's. Best props for these are Graupner 5.5 x 4.3 CAM. Fit with the writing to the front of the model and have fun.