This motor is great for sport-planes and trainers up 5.5 pounds. I personally use one in a Super Sterman, 40 using 10 3300 cells and it performs great on a 10-6 prop. For Helicopters weighing up to 2-3 pounds, like the ECO8 For gliders weighing up to 6-7 pounds For use with 8-12 cells depending on prop size. pulls 400-450 watts max

Motor type	RPM/Volt	Impeller/ Prop/ Heli	# of cells/Lipo	Weight	Controller	Amps	RPM
350/12 Trip 10w10p	2150	8x5 9x5 Heli	10nmh or 3s Lipos	Heli	x	x	x
350/12 trip 11w10p	1970	9x6 Eco8 Heli	10nmh or 3s Lipos	30 size plane / Heli	x	x	x
350/12 Trip 12w10p	1800	10x6 Eco Heli	14nmh or Lipos	30 size plane/ Heli	xx	x	x

Motor type	RPM/Volt	Impeller/ Prop/ Heli	# of cells/Lipo	Weight	Controller	Amps	RPM
350/12 Trip 11w14p	1660	11x6	8nmh	30 size	x	x	x
350/12 trip 12w14p	1510	11x6	16nmh or 5s Lipos	30 size plane	xx	x	x
350/12 Trip13w14p	1390	11x7 12x6	12nmh or Lipos	30 size plane/	x	x	x
350/12 Trip14w14p	1300	11x7 12x6	12nmh or Lipos	30 size plane	x	x	x

Motor type	RPM/Volt	Impeller/ Prop/ Heli	# of cells/Lipo	Weight	Controller	Amps	RPM
350/25 Trip 11w10p	1250	12x10	14nmh or 5s Lipos	Heli	x	x	x
350/25 trip 12w10p	1200	12x10	16nmh or 5s Lipos	40 size plane / Heli	x	x	x
350/25 Trip14w10p	1100	13x10	20nmh or 7s Lipos	40 size plane/ Heli	x	x	x
350/25 Trip 16w10p	800	14x11	24nmh or 8s Lipos	40 to 90 size plane/ Heli	x	x	x
350/25 Trip 18w10p	580	13x9.5 to 15x8	14nmh to 16 to 5s Lipos	40 to 90 size plane/ Heli	60 to 80	24.2 to 32.9	10560

USD$139.