FastStang

i ordered the kokam 3 cell super high discharge li-poly cells because i want to go completely vertical. i know the motor wont last as long and frankly i couldnt care less. i need that power. any suggestions on a prop size for this voltage?

Jason Beach

My Feedback: (4)

Are you going to gear it or go direct drive?
What plane are you powering it in.
I would think that 4:1 gearing and a 10x7 prop should get you in the ballpark on a 16-20oz plane, but you'd have to experiment with prop sizes to find which one suits your application best.
Good luck.

Jason

e-bird

Yes maybe even a 10X4 try both maybe. CU

drksyd

I'm more than sure you'd need to use a 3S2P to run a S300. If you have a 3S 1020 mah, you'll get 4.8 amps continuous from the pack. As long as the motor or motor/gb doesn't draw more than that you'd be Ok. The Etec 3S 1200 mah would give you a safe 7.2 amps continuous.

KillerWatt

usually that li-poly battery is equal to about a 10 cell pack which should really over-amp your present 300 gear ratio/prop combo...... you might try going 1 diameter size smaller prop in an attempt to pull the new expected amps down to present ammount