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Surin Nair 13/03/2018
I received this item about 3-4weeks after ordering it. It came in a plastic pack that in turn held the cardboard box holding the motor. The box was crumpled at one corner and it sure looked like a heavier box was placed on that edge. my motor was inside that corner. So not very well done in terms of package handling. Now for the motor. Inspection wise, i saw nothing broken, no wires were loose and it spun freely. OF course this was no indication of internal breakage. You could only find that out upon plugin. It came with NO prop nut, the shaft was a little bit bigger than our usual 5 inch prop hole so some work with a knife would sort that out. There were 4 allen key screws to clamp the motor to a firewall that you had to make/provide for yourself. and the wires ended in 3 soldered open ends. I used the same connector as standard servos and it worked ok. My testbed was the XK A430. The previous motor had ripped itself out of the frail mount and several wires inside were ripped out. Hence the replacement. After the engine leads were connected, i verified that the engine could spin up well. It did but there was a metal screeching sound at low rpm, up to about 30% throttle. Once >40%, i couldn't hear it. This occured a few times but wasn't consistent. I did highlight this to BG but told them i would monitor this considering this motor was no longer being sold. Thrust was consistent with a 3100kv motor, no issues there. The motor was improvised with a credit card firewall and then to foam backing before being affixed to the airframe. Due to the motor's bell size, i had to stick the motor outside the nose which caused fwd cg. Had to adjust the batt to correct this. Test flights were satisfactory to impressive. CG aside, the aircraft was able to cruise at 30% throttle and last i checked, i had 16mins endurance, compared to 10mins on the previous motor. So this motor is a good upgrade. Thumbs up. Just need to have it handled well during shipment.
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Surin Nair 22/01/2018
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