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This Ion-X keeps the stock two stage reduction gearing, driven by a Hacker C50-15XL motor.
After analysing inflight data, the determination was made that a Kontronick Jazz 55-10-32 should be safe to use, especially for sport flying. Preliminary flight testing shows this to be the case with the Jazz installed. In fact, average current draw has dropped. The Jazz automatically calibrates its timing angle, and partial load switching frequency to the measured impedance of the motor each time it's started. I believe this to be the main factor in lower observed amp draw.
The Jazz 55-10-32 has a continuous current rating of 55 amps, and a 15 second surge rating of 65 amps. The Jazz is designed to shut down at 150F internal temperature. No specific value is yet known, however it is logical that shorter duration surges of a few seconds or less should safely sustain even higher currents. This motor and gearing have so far yielded a maximum surge of 80amps. The Jazz has tolerated an 86 amp full power climbout surge without flinching. An instrumented flight test program is in progress to explore this further. I'm moving to lighter battery packs, particularly the Flight Power Evo 20C and New Formulation 30C 5S1P 3700 mAh packs. Flight time is being sacrificed for lighter disc loading. This arrangement allows for 7 minute flight times with some reserve.
Another great feature of the Jazz ESC is the best governor mode of any brushless ESC on the market.
The stock Ion Extreme head has been replaced by the latest version of the Tempest 3D Titanium rotorhead, with updated Flybar carrier. All other airframe components remain stock.
Other equipment includes:
Futaba GY611 with 9256
Futaba R5014 G3 PCM rcvr
Futaba 9351 cyclic servos
Arizona Regulator and 2400 mAh Relion rcvr pack
Custom painted canopy by CanopyFX
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Technical Specs
