Originally Posted by Dr Kiwi
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..<snip>...
Is it lousy performance or just lousy numbers when you compare the efficiency to other motor?
Would you consider the difference in those numbers to make this motor lousy? I think I could adjust the kV up (thereby, with fewer turns, increase the wire size too) and get the RPMs matched up better.
Did you return the GP props I sent to you for testing to me? That might explain why they were only tested one time. They are the ones with right angled tiplets and are marked "GP dia. x pitch S" in Imperial and metric. If you don't have them and I send them to you again, will you test them along with similar props?