Hey thecheatscalc,

I got it as a free replacement from RC-Expert, as the motor they shipped with my T-Rex RTF-set (an "RC-Expert" CF-cased 3200KV) seemed to have a heat-problem. The 420LF currently costs US$50,- there. I'm just into basic hovering and a bit of FF at the moment, so I can't tell yet how well it'll hold up under 3D, but it seems to provide plenty of power, lifts the T-Rex 450X off the ground easily and seems to handle the rapid altitude-changes I tried to stress-test it very well. It doesn't run very hot, but I would still recommend heatsinking it, especially for more demanding flights in higher ambient temperatures. I get around 12 minutes of hovering out of one of those red RC-Expert 1800mAh 3S 10C LiPo's with it, which seems very reasonable.


Grtz,

Traveller