At 03:04 PM 27/07/2010, you wrote:
>The powered paraglider lasted about 40 minutes. Heaps of power
though so most of the >time not much throttle had to be used to
hold height. I am not sure how long it would last >at full
throttle. It used the 30A battery listed on their site.
I think that several of the ultralight sailplanes with electric self
launch capability advertise something like 3 climbs to 2000' on a
charge.
Having only one 20 KW motor is in some ways neither here nor there
since you can either arrange several radially around a big gear ring
or connect one up the back of the other.
There's a piece in Keep Soaring on a Plettenberg motor
http://www.keepitsoaring.com/LKSC/Downloads/Keep_Soaring/July_August_2010.pdf
which claims 15KW, 1.9 kgs and US$ 850.
With a club magazine like that the GFA should just give up on SFA or
whatever it is called now.
Mike
Borgelt Instruments - manufacturers of quality soaring instruments since 1978
phone Int'l + 61 746 355784
fax Int'l + 61 746 358796
cellphone Int'l + 61 428 355784
email: [email protected]
website: www.borgeltinstruments.com
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