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Old Oct 15, 2012, 09:44 PM
Dr Kiwi is offline
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Chattanooga, Tennessee, United States
Joined May 2003
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I'm still puzzled by the apparently lousy performance of this motor....I know that g/W is not the ultimate arbiter but just for fun I tried to compare your DT750 figures with some other motors I have tested [matching RPM as well as I can]. I don't have the GP SF props but I found that in my Spreadsheet I had comparable data for both the APC 13x8E and the 10x4.7 APC SF. I think the thrust estimates from flybrushless are not too far off.. so, for your motor, I'm using those which you posted for your re-wound DT750. The thrust figures for the JGF and AXI motors are my own measured data.

13x8 APC E: DT750: 4473rpm, 124W, 769g = 6.20g/W
13x8 APC E: Justgofly 550XT: 4530rpm, 106W, 790g = 7.45g/W

13x8 APC E: DT750: 5022rpm, 221W, 979g = 4.43g/W
13x8 APC E: Justgofly 550XT: 5055rpm, 158W, 994g = 6.30g/W

10x4.7 APC SF: DT750: 5724rpm, 93W, 584g = 6.28g/W
10x4.7 APC SF: AXI 2212/26: 5790rpm, 80W, 576g = 7.20g/W

10x4.7 APC SF: DT 750: 6563rpm, 164W, 787g = 4.80g/W
10x4.7 APC SF: AXI 2212/26: 6660rpm, 137W, 795g = 5.80g/W
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