We recognised that the 2004 motor wasn't made for freestyle bashing as the norm as this motor was more cinewhoop style flying. With v1.2 we've made the motor more robust without affecting weight or performance. We've upgraded the internals to hold the motor bell on during crashes and hard heavy flying.
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.
Right away, this is the best 65mm Whoop I know. Not even close.
I ordered two, one is more or less stock, just the PEEK motor screws and V3 cockroach. The second is upgraded to 0702 27000kV but will go back because I like the 25000kV more because of smoother throttle response and perfect betaflight tune.
Now the but:
1. On both quads I had to replace the BeeEye for a spare one because both are out of focus.
2. the yellow props were way too loose and very brittle. I lost two on my maiden. Black, blue and red are very tight (too tight for such a fragile prop) but if you get them on without bending them, they will last.
3. why does the quad not come with the lighter frame right away?
4. PH2.0…. You know the drill.
On that price point, even after the frame and PEEK upgrade I can forgive these quality issues. Especially considering the great tune and quality FC and motors. But be sure to order a replacement cam and props right away.
This was kind of a late night lark. I'd seen this upgrade for the Mk3 for a while and pondered whether it was a gimmick or not, and I'm pleased to say it's a genuinely good upgrade. It has reduced the noise of my Mk3 considerably. I haven't noted any significant increase in print quality, but the old drone of the bed is gone and that's completely worth it.
