Now many of the hobby aircraft are run off Lion batteries though some hobbyists still use the fuel engines.  All the multi-copters (("drones") are because the electric power can be modulated to control the various rotors for speed, direction, etc.

Scaling up is an issue...

--FT

On 8/15/19 12:24 PM, Andrew Strasfogel via Mercedes wrote:
Remember those motorized model airplanes that were tethered to a handle
that you twirled around?

Maybe rather than batteries they should pursue the idea of extremely long
extension cords.

On Thu, Aug 15, 2019 at 11:47 AM Craig via Mercedes <mercedes@okiebenz.com>
wrote:

On Thu, 15 Aug 2019 10:59:59 -0400 (EDT) Mitch Haley via Mercedes
<mercedes@okiebenz.com> wrote:

“This is a start … but we have to make jet fuel a lot more expensive,”
said Arild Hermstad, a leader of the Green Party.
Yes, we know what is best for you, just give us the power to enforce our
will on you ...


Craig

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--
--FT


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