neu 1527 - 1500kv vs 1250kv

[jjrctech]

neu 1527 - 1500kv vs 1250kv

1500kv - 22.2 v = 33300rpm
1250kv - 25.9v = 32375rpm

which wuld have more torque or power? seem to me that the 1250 would need mote volt and more cells add more cost to the build to get the same thing,

what would be better about running 1250kv motor vs the other??


Thanks

[sailr]

General rule: Lower the KV, higher the torque, bigger the prop.

[knpc]

The 1527/1y (1250kv) is a great motor on 6s-22.2v, 28,000 isn't a bad rpm range for a bigger motor. It's fast and has alot of torque to swing a big prop, it should run in the low to mid 60s depending on hull and setup.

[jjrctech]

The hull will be Mystic C5000 and setup of 2 x neu 1527 1250kv - 29.6v= 37000rpm

what prop would you guys run??

Thanks

[Himalaya]

There are always advantages to use higher voltage/ lower KV combo, if possible. Every part of the system feels less stressed from the lower current flow for a given power. Further more, Y windings performs a little bit more efficiently than the D wound type according to Steve Neu's post somewhere.

33K RPM is a very reliable velocity for Neu15xx rotors, probably too reliable if your need for speed is not just slightly over 60mph.