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Old 11-11-2015, 07:54 PM
Join Date: Jun 2002
Location: high deserts, CA
Posts: 3,704
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Here is a setup. Eclac says it should put out about 21 pounds of thrust. I have an older Pitts I bought from Hobby People about this size and this is what I was thinking of putting in it.



(2) 5s for a 10s setup

Dual battery connector.

I used the calc program with a APC 18x10 Electric prop.

Motor @ Maximum
Current: 70.88 A
Voltage: 35.83 V
Revolutions*: 7934 rpm
electric Power: 2539.7 W
mech. Power: 2271.2 W
Efficiency: 89.4 %
est. Temperature: 56 C
133 F

Static Thrust: 9877 g
348.4 oz
Revolutions*: 7934 rpm
Stall Thrust: 6888 g
243 oz
Thrust @ 0 km/h: 9877 g
Thrust @ 0 mph: 348.4 oz
Pitch Speed: 121 km/h
75 mph
Tip Speed: 684 km/h
425 mph

Hope it helps. You will of course need to get a watt meter so you don't let the magic smoke out. Also, on the bench, take the prop off or unplug the motor wire when ever the batteries or plugged it. That is a chop saw just waiting for an arm to eat.

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