What prop

[lfalsetto]

I have a Global Wattage with a 400 speed non brushed motor what prop should I use. the motor gets very hot as does the lipoly 3 cell after a few minutes.

Thanks
Larry

[WillJames]

I am running 10x4.7 and a couple sizes on either side. Gotta dig into my flight box to look for sure.

[rob_jones]

You using a gearbox? Makes a BIG difference.

[twinkle]

hi guys,bought a multiplex acromaster for a change from crashing heli,i already have a sanwa/airtronic t/x,and a spare 8 channel sanwa receiver,a couple of q's for all you experienced flyers,i read somewhere that a t/x,and r/x needs what is known as "binding" how do i bind the spare r/x to my t/x? also how would i wire this plank using my r/x? for the airlons which i suppose move together would i use the channels i use for my heli's 2 front cyclic controls? and seperate channels for the rudder, elevator, and throttle operations, i hope you all understand what i'm trying to explain :hug: i'm new to all r/c hobbies and i'm trying to learn,so if anyone can help it's most appreciated,take care guys,bob

[Pinecone]

3S lipo is a problem with those motors. They were designed to run on 6 or 7.2 volts. 11.1 volts is a bit much. They will run nice, but burn up quickly. But they are cheap.

Direct drive a more normal prop is in the 6 inch range, IIRC.

Here is a power recommendation for a Ryan Hellcat running a Speed 400 motor:

For best performance, I recommend the following flight hardware: 6V Speed 400 motor, Graupner #1328 prop adapter, Graupner 6 X 4 prop, 8-cell KAN-1050 NiMH battery pack, 20 amp BEC speed controller and micro radio gear.

Link to Ryan page: http://home.fuse.net/ryan/