MT Dragon W28B3 760kv
Voltage Range: 6-12V
I/O (A) : .5A
Max Load: 11A
Max Efficiency: 76%
Shaft Diameter: 3.175mm
Recomended Model Weight: 300 - 1000g
This motor installed on my Omega 1.8. Its a 600 gram with a 9x5 graupner folding prop and a 650mh lipo. This set up work excellent.Motor itself appears to be good. THe included prop adapters are not exactly straight. Took some work to get them straightened.
4 cell 2100 HXT pack, with an Align 25a ESC at medium timing
3 blade 9x7 Master Airscrew prop
12 amps to start, dropped & settled out at 11.4 amps under load.
Work nicely on my 2.5 Omega polyI tested one specimen. It has higher internal resistance and lower current limit, but it is still performs well on small acrobat with 400g AUW with 3s1000 and APC E 10x4.7 propeller (takes 7A), it has high thrust to current ratio (77g/A).
MT Dragon W28B3 HXT 3s2200 ESC HXT-36A fw 1.044 timing 4-10
prop. rpm U [V] I [A] thrust [g]
APC E 8x4 7520 12.00 3.65 290
APC SF 9x4,7 6590 11.60 5.06 410
APC SF 10x4,7 5750 11.50 7.00 540
APC SF 11x4,7 5000 11.43 8.30 600
kV = 753 rpm/V
Ri = 0.55 Ohm
Io = 0.56 Ohm
10x4.7 is best and maximum for this motor, with 11x4.7 it gets very hot quickly.
See all story on http://hobbycity.com/community/forum_posts.asp?TID=1077
I am giving four stars because motor didn't fully meet expectation based on specification. But I still recommend this motor and will buy again if I have smaller plane which needs bigger slowly rotating propeller.
Sehr guter Motor. Fliege ihn an einer 10x4.7 sf apc. Der Versand dauerte 8 Tage in die Schweiz. Zubehr ist in Ordnung. EmpfehlenswertSehr guter Motor. Fliege ihn an einer 10x4.7 sf apc.