[Serum]

brushless motors are available in delta (star) and Wye (Y) windings.

A delta wind gives 1.73 times as much torque and 1.73 times less KV than a Y winded motor.

Lehner non high-amp motors come in Y, but you can remove the original solder and reconfigure it as a Delta winded motor.

With the lehner non high-amp motors you have a motor that is a Wye wind, which can be soldered to a Delta wind motor.

This Y and D is also used for Neu brushless motors, the 1515 1y for excample. and they are also available in D.