Sailplane-like UAV can fly for days on jet fuel

[Soartech]

http://newatlas.com/vanilla-aircraft-va001-uav-endurance-record/47295/

Very efficent!

[[email protected]]

On Monday, January 9, 2017 at 9:10:02 PM UTC-6, Soartech wrote:
> http://newatlas.com/vanilla-aircraft-va001-uav-endurance-record/47295/
>
> Very efficent!

Jet-fuel powered but with a large propeller at the back. Could be a Diesel engine driving it. I'm sure there are pistons and gear reductions involved..
Impressive performance, shows you on how little power a clean airframe can sustain altitude.

[Jim White[_3_]]

At 16:42 10 January 2017, wrote:
>On Monday, January 9, 2017 at 9:10:02 PM UTC-6, Soartech wrote:
>> http://newatlas.com/vanilla-aircraft-va001-uav-endurance-record/47295/
>>
>> Very efficent!
>
>Jet-fuel powered but with a large propeller at the back. Could be a
Diesel
>engine driving it. I'm sure there are pistons and gear reductions
>involved..
>Impressive performance, shows you on how little power a clean airframe
can
>sustain altitude.
>
Taking the JS3 high wing idea a bit far?

[JS]

On Tuesday, January 10, 2017 at 9:15:04 AM UTC-8, Jim White wrote:
> >
> Taking the JS3 high wing idea a bit far?

Or is it Slingby T-21 "Rhon Moose"?
Jim

[Steve Koerner]

It's hard to get impressed by a 56 hour unmanned flight when 30 years ago Voyager carried two people and everything needed to make them happy for 9 days; plus they didn't just hang out -- they went somewhere.

[Tom (TK)]

Lange Aviation is producing fuel cell powered UAVs. The H2 has been in service for a few years and the H3 is currently in production and will have a range of over 5000 km and 40 hours.

H2: https://youtu.be/UCY21dHGxJk

https://youtu.be/-a-VO4oL4yY

[[email protected]]

And what does this have to do with soaring??