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Old 07-09-2019, 07:53 PM
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$695.00 USD
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StinGR Power Unit

This is a new StinGR gear reduction power unit with a Scorpion custom wound HKIII-5035 motor.

This is a 12S power system purpose built for 35% aerobatic and 3D airplanes to 30 lbs since it will develop 64 pounds of thrust.

The gear reduction provides about 12% more efficiency than the non-geared outrunner Hacker that can deliver the same power. It is also no less than 10.5 ounces lighter than the non-geared outrunner Hacker that can deliver the same power, and is about $460 less expensive than the non-geared outrunner Hacker that can turn the same size prop and deliver the same power.

All up weight: 1548g
  • With a 27x12L PT prop, it will do 150A and 52 lbs of thrust at the non-geared outrunner equivalent of 7510W on 12S with a 82mph airspeed.
  • With a 28x13 C2E Falcon, it will do 164A and 64 lbs of thrust at the non-geared outrunner equivalent of 8240W on 12S with a 89 mph airspeed.
  • With a 28x12L PJN Xoar, it will do 174A and 60 lbs of thrust at the non-geared outrunner equivalent of 8690W on 12S with a 82mph airspeed.
The motor has been rewound for a specific Kv with single strand 1.5mm copper for more torque and less heat.

The unit will be shipped fully assembled with new Castle 6.5mm bullet connectors on the motor.

I made five of these and here are other units powering a 30.5 lb 105" AJ-Laser with a 28x13 C2E Falcon and a 28.75 lb Extreme Flight Turbo Bushmaster with a 28x10 Falcon. That is one flight.... 7.3 minutes under throttle and almost 9 minutes total.

PM me for more information.

Chris Hass Flies the Electric StinGR at Joe Nall 2019 (3 min 47 sec)

Mega Bushmaster and StinGr (10 min 5 sec)
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Old 07-09-2019, 07:55 PM
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Some images of the StinGR in a:

110" Extreme Flight Yak 54
105" AJ Laser
120" Extreme Flight Mega Tubo Bushmaster
105" PAU Edge 540

....and my 102" SU-29.
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Old 07-10-2019, 12:14 PM
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Sold.... Thank you.

I may make a few more of these so if anyone is interested, let me know. It will take at least 30 days to have the components made and shipped to me for assembly so knowing in advance that someone else is interested is important so I know what to order.
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