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Old June 15th 18, 04:42 PM posted to rec.aviation.soaring
Charlie Quebec
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Posts: 253
Default THE LONG AWAITED BREAK THROUGH IN BATTERY TECHNOLOGY HAS BEEN FOUND

Something like this would be ok for a acceleration booster, even if only 20 seconds of high power to accelerate for self launch.
Given the FES motor has more power than the Fisher Top motor, with an acceleration boost, self launching at 400kg would be possible.