Who
Richard Tetz pilots a balloon that flys well, but where are the wings?
You could get even more performance!
WHITE DWARF SPECS
Year built: 1985
Designed and built by: Bill Watson
Built for: Gallagher, the comedian
Dimensions
Envelope length: 48'
Maximum diameter: 17'
Volume: 6200 cubic feet
Overall height: 27"
Weights
Empty: 140 lbs.
Pilot weight range: 90-250 lbs.
Maximum take-off weight: 390 lbs.
Performance
Maximum level speed: 12 mph
Average cruising speed: 6-7 mph
Construction
Envelope: Helium filled, non-rigid polyurethane coated nylon.
Helium maintained at average slight pressure of 0.02 lbs/sq. in. No ballonets.
Fuselage: Open framework structure of 2024 T3 and 7075 T6 aluminum, stressed to 4+ Gs,
attached to the envelope by 24 Dacron sheathed Kevlar lines.
Ballasting: two water ballast tanks with pilot-controlled drains and up to 60 lbs. of lead
ballast control buoyancy.
Venting: A three-inch diameter plug
alongside the seat can be lifted by the pilot to vent helium.
It opens automatically at a pressure of 4 inches of water.
Aerodynamic controls: Large Mylar covered styrofoam and spruce rudder.
Passengers: pilot only
Power system: Pedal power, producing approx. 10 lbs. of cruise
thrust via 4:1 gearing and plastic chain drive to a
two-blade pusher propeller made of spruce and Styrofoam.
Propeller can be vectored up and down for vertical control.
Misc.
Cost to fill: approx. $1000.00
FAI World for Duration, Class B Airships, BA-1 through BA-10, achieved by pilot Bryan Allen in 1985.
Here is a different one.
Here, super-intelligent people made incredible wings and a propellor and had
a mega-athelete power the thing, wings for all lift, Work Super Hard!
Specifications for the Gossamer Condor.
Wingspan: 29.25m (96 ft)
Length: 9.14 m (30 ft)
Height: 5.49 m (18 ft)
Weight: 31.75 kg (70 lb.)
In the early 1970s, Dr Paul B. MacCready and Dr Peter B. S. Lissaman, both of AeroVironment Inc.,
took a fresh look at the challenge and came up with an unorthodox aircraft, the Gossamer Condor.
The Gossamer Condor is basically a flying wing, modified with the addition of a gondola for the pilot
underneath and a canard control surface extended in front, and is mostly built of lightweight plastics.
The aircraft, piloted by amateur cyclist and hang-glider pilot Bryan Allen, won the first Kremer prize
on August 23, 1977 by completing a figure '8' course specified by the Royal Aeronautical Society, at
Minter Field in Shafter, California.
The aircraft is preserved at the Smithsonian National Air and Space Museum.
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