Special Edition KO Method X-Class motor 420kv
THE WORLDS MOST POWERFUL X/Mega-CLASS MOTOR
420kv 10 pole 2Y windings ~ Special edition only available at Ostrich Air
Tempered steel removable shaft
replaceable non slip prop plate
Hollow 8MM replaceable shaft
replaceable base plate.
7075 aluminum bell and base plate
Open cage EZO 19x8mm bearings
Oil filled sump
The traditional fan or fin styled design calls for a fan machined into the bell, this method has 2 major flaws. Firstly this design is" handed " meaning CW rotating motors must have a fan design orientated differently to a CCW rotating motor if the fan is to be effective. The second is that a fan or fan-shaped spokes design robs the motor of power to drive the fan and In turn lowering response times, ultimate RPM, and ultimate available torque.
KO tech has developed ACPC to compress incoming air directly at the bell spoke face forcing the air past the spokes and directly into the stator and magnet assembly. This lowers the operating temps, increases torque, and dramatically increase response times all the way along with the rpm range. As a bonus, the angled ring that forms the ACPC design is used as a counterbalance, used to reduce the amount of putty to balance a motor bell.
We are able to "clock" the ACPC ring a full 360 ° during the balance procedure effectively halving the amount of putty needed to achieve a reading of "True" on the test equipment. This allows us to further reduce the weight of the bell and in turn improve motor response times.
Lastly because of this ability to reduce the amount of balance putty needed we have also been able to reduce the lip at the base of the motor used as a rebate to retain the putty under high RPM centrifugal forces, further reducing weight and I'm proving response times.