MT Dragón W28B3 760rpm / V

• Overall
• Quality
• Value

Good Choice

Nov 14, 2007

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.

• Overall
• Quality
• Value

ok motor

Nov 14, 2007

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.

• Overall
• Quality
• Value

Very nice motor

Nov 14, 2007

Work nicely on my 2.5 Omega poly

• Overall
• Quality
• Value

Low current consuption good fo

Nov 14, 2007

I 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).



Test results:

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



parameters

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.

• Overall
• Quality
• Value

Good

Nov 14, 2007

Sehr guter Motor. Fliege ihn an einer 10x4.7 sf apc. Der Versand dauerte 8 Tage in die Schweiz. Zubehr ist in Ordnung. Empfehlenswert

• Overall
• Quality
• Value

Good

Nov 14, 2007

Sehr guter Motor. Fliege ihn an einer 10x4.7 sf apc.