Super lightweight, powerful little motor for small aircraft.
I run this little powerhouse on my Aeronaut Rocky spinning a 7x4 folding prop on 3s and it pulls that thing up in a hurry to get into thermals and comes down ice cold.
I was very disappointed with the quality of this motor. The shaft is advertized as 3mm but it measures 2.88 mm, much too small for my 3mm collets. They will not close on the shaft. A collet with a setscrew lock would be unbalanced. As well the mounting X is much too large for the diameter of the motor. The fuselage would have to be much to large to fit the X but the motor diameter is quite small. The cost is low so returning the motor would cost more than it is worth so I will swallow the cost but it is really unuseable to me. Actually a No-Star.
The shaft is described as 3 mm. diam. but I measure 2.88 mm. None of my 3 mm collets can close on the shaft. A collet which uses a setscrew to secure it would be unbalanced, so the little motor is really unuseable to me. At the price it is not worth the postage to send it back so I will swallow the cost, but it is a big disappointment to me. The motor mount is much wider than necessary with respect to the motor diameter as well, so does not accomodate putting the motor in a narrow fuselage as would be appropriate for the small motor. Definitely disappointed in the engineering and construction.