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.

On Friday, June 15, 2018 at 9:42:35 AM UTC-6, Charlie Quebec wrote:
...even if only 20 seconds of high power to accelerate for self launch.

Nope, supercaps absolutely not helpful.
You need enough power for a safe climb rate for several minutes.
And that much power already provides more than adequate acceleration.

Forget the supercaps for this application!
BTW, some electronics I designed flying in produced gliders uses supercaps ;-)

A FES motor would provide sufficient climb rate, and an initial boost would be helpful.
As I pointed out, it is already more powerful than a TOP motor.