https://youtu.be/OeCpKL9-WDM

Charles Allen and his electric propulsion system. Charlie writes:

Most the parts I designed in CAD and made in my work shop (https://youtu.be/71oNQoVPJh4). All plastic parts are 3D printed, all carbon fiber plates are cut on a CNC
router, and the prop holders are 7075 AU and cut on a CNC Mill.

The remote and power unit each have Arduinos (https://en.wikipedia.org/wiki/Arduino)
which I did all the programming on.

I’ve been working on it for about 5 years and Kevin Carter flew with an earlier
prototype last year which was much less advanced and only put out 8.6kg of
thrust, this one puts out 20kg of thrust. Kevin’s feedback from his flight was
that it turned a dud thermal into just under zero. I haven’t flown with it
yet.

My plan was to have it ready for Florida but due to COVID that was a wash. I
plan to fly it next time the weather works, just waiting for a 15mph N-NW day
don’t want to fire up the motors till I’m at altitude. I think the biggest
issue will be getting the thrust line right which is ground adjustable so there
will be some trial and error.

With respect to parts the following are the off the shelf RC parts.

2 x drone motors

2 x ESC

Arduinos

Lipo Batteries

Most raw materials are from RC Stores as well such as:

Carbon fiber plates and tubes

Wood props – (I had to CNC cut them to fit in the folding mounts)

Plugs / wires etc.

Random other stuff