Not speaking German and too lazy to do a lot of cutting and pasting in
google translate, I'll ask he What is the range capability with the
range extender? And how long does it take to recharge? Does it have
some solar charging capability?

My old-fashioned fossil fuel powered Stemme will take off, climb to
14,000' (30,000' service ceiling, but that's just too cold), cruise for
500 miles at about 130 kts ground speed, and can be "recharged" in about
10 minutes at the pump. That's pretty hard to beat! That said, since
bringing it home I've flown it around 13 hours and used about 11 gallons
of gas, maybe 12... As the season improves, I'll probably be able to
fly another 25 or 30 hours before needing to refuel (unless I want the
ballast).

On 4/21/2016 1:51 AM, krasw wrote:
So he has nothing to do with old Stemme company? Interesting.

Putting range extender on glider is a good idea. They are being made everywhere for electric cars and should be affordable (when mass produced). Surprising that the weight of pod is 100kg. That's one big range extender. No wonder they couldn't fit it in the fuselage.

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Dan, 5J