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• XNova Hyper 2205 2300kv

This is the latest offering from XNova, with some great new features, and a complete redesign of the bell. This motor was sent over by Catalyst Machineworks for testing.

Check out the full list of motors in this series here

Summary

I've previously tested a number of XNova motors, and so far I've not been amazingly impressed.  They have been heavy and only average performance up to this point, but the things I saw about the new Hyper motors made me curious. When I had the opportunity to test these I jumped on it, and I'm glad I did. This is by far the best motor XNova has produced so far.  The physical design is impeccable, with the hollow shaft design and the bottom screw to hold the bell in place, a much slimmer, and more minimalist bell design.  The air gap has been reduced and arc magnets have been used.  The windings are still multi-strand, rather than single strand, which may impact high current temperature rise, but I doubt significantly. There is a knurled area at the base of the shaft that is one of the best grips for props that I've seen so far on a motor. It made tightening down props extremely easy during prop changes. Probably the thing I like the most about this design is that the screw used to secure the shaft on the bottom of the bell is a standard screw that uses the same 2mm hex driver as the screws in most frames.  This makes it super easy to deal with.  Even if it gets lost most of us probably have a dozen of the same screws laying around from other projects.  It's also more robust than most of the other screws used in these types of motors, which makes dealing with maintenance much easier. The only downside I see with this motor is that it's still a tad on the heavy side, at 30g for a 2205. Overall I'm extremely impressed with the build quality and production value of this motor.

Now on to the bench results!

Test Results

There weren't any real surprises here, just solid performance across the range of props.  It performs virtually identically to the other top 2205 performers such as the Cobra Champion, Emax RS-S, and Tornado T1 2300kv motors.  Thrust performance and RPM efficiency is top notch, matching most 2206 motors on the lighter props, but again falling short on the heavier props in terms of response times over even the weaker 2206 motors thanks the 1mm shorter stator height.  The motor ran the tests very smooth without developing any slop through the test, and thanks to the heavier 4mm bearings and thicker shaft is less likely to have issues under stress than the previous XNovas.  Very solid performance here, among the best of the best in terms of 2205 performance, if not in terms of weight.