FanWing OHS Twin-Tail, June 2011

The first FanWing OHS prototype was successfully flight-tested July 2010. This film shows the now modified FanWing experimental UAV twin-tail in its first test flight June 18, 2011. The OHS (Outboard Horizontal Stabilizer) twin-tail arrangement moves the horizontal tails from the strong downwash flow directly behind the wing to positions where they can exploit the upwash from the wingtip vortices. The new configuration follows two series of wind-tunnel tests. Onboard data logging shows improved efficiency, speed range, reduced drag and increased stability even at high angles of attack. The aircraft completed full circuits and a smooth landing despite weak tail booms and gusty winds.
FanWing design by Pat Peebles & George Seyfang. Construction by Pat Peebles. Pilot Raffaele Moreschini
Rotor span 170 cm; Weight 9 kg; Speed 30 - 75 km/h
Wind speed approximately 20 km/h/10 knots
http://www.fanwing.com

Category:

Autos & Vehicles

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• FanWing
• UAV
• platform
• aircraft
• rotor-craft
• rotor-wing
• STOL
• vortex
• flight demonstrator
• flight
• OHS
• Peebles
• Seyfang
• experimental aircraft
• innovative aircraft
• twin-tail aircraft
• UAS platform
• fan in wing
• aircraft invention
• flying
• plane
• helicopter
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[Volarchico2000]

Very cool!

Out of curiosity, how does the plane fly in an engine-out scenario? Can you get enough L/D to actually "glide" any distance?

[upajos]

What is the propulsion source in the model? Electric motor?