680 Motor
11-27-2006, 08:30 PM
#3
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RE: 680 Motor
Sorry, never heard of a "680" motor. Can't find it on the Multiplex website 
What are you trying to achieve by removing the gearbox? Direct drive, the motor will be far less efficient and may not spin a useful prop for the plane you're trying to fly with it.
What are you trying to achieve by removing the gearbox? Direct drive, the motor will be far less efficient and may not spin a useful prop for the plane you're trying to fly with it.
11-28-2006, 06:10 PM
#4
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RE: 680 Motor
I heard that direct drive will let the motor spin faster therefor increased speed (Im building a speed airboat). The motor came with my multiplex magister.
12-14-2006, 06:41 PM
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RE: 680 Motor
It looks like a 550 size motor to me, I would try and use a 6x5 - 7x5 prop. If it can handle that well, I'd move up a cell. Start at no more than 7 cells.
Good Luck
Ryan
Good Luck
Ryan
