This higher KV motor is perfect for the 2Fiddy 4" for some long range action with with 3s Li-Ion or 4s. This motor also works AMAZING for 3.5" props on the 4" 2fiddy!
With the advancements in digital HD FPV and regulations pushing our hobby to lighter and lighter weight restrictions, I decided it's time to expand our knowledge and development into building a proper lightweight freestyle quad. While others are diving completely into the "build the lightest thing at all costs", I wanted to take a more thought out approach. With a target AUW of ~300g, I exhaustively searched, tested, tweaked, and finally found my ideal lightweight 5" motor.
The motor/prop combo determines how an aircraft will move its weight. For me, a freestyle quad must perform well stabilizing itself in demanding situations, pull out of a dive at the last second, or respond without hesitation to abrupt acrobatic maneuvers. Obviously, this means the right motor, controlling the right prop, spec'd for a specific all up weight.
After testing a range of stator sizes and KVs, I've come to the conclusion that a 2004 is the smallest size for a 5" lightweight prop and that 300g AUW target... but it has to be light weight. So to make the motor as light as possible, I worked with the engineers at the factory to test all options. We made the motor mount use only 2 screws to secure, and thus reducing any extra weight from the base. The bell is perforated with slotted cutouts to reduce rotational mass. This adds to the motors ability to rapidly change speed, similar to the effect of lighter props. To further reduce rotational mass, strong, yet lightweight titanium bolts are supplied to secure T-mount props. Because the prop shaft simply doesn't need to be as long as other motors it has been reduced to 1.5mm. And finally... after begging other motor factories... we now have the worlds first (on a 5 inch) "ribbon" motor wires! This will make that ultra clean build without even trying. I didn't want to build just "any" 2004 motor, it needed to be special. Speaking of special, this motor has a 3mm shaft with custom oversized 8*4*3 bearings for maximum smoothness and durability.