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Volmer VJ-24 SunFun  VJ-24E
The VJ-24 is Volmer Jensen's hang glider design built from aluminum. This motorglider is constructed of aluminum tubing plus fabric, and originated as a foot-launched glider. SunFun is made from pop riveted aircraft aluminium with the wings leading edge formed in styrene foam. Covering is polyester aircraft fabric doped. Control is by aileron, elevator and rudder. A permanent seat is built into the hanger structure.
The VJ-24 was first flown in about 1975 and showed exellent controllability with a joystick. Plans were available from Volmer Aircraft for $100.00. Materials have been estimated at $2400, with a building time of 250 hours.
The VJ-24 uses pip pins and thumb screws to assemble in 10 minutes without tools.  Designated the VJ-24E, the Sunfun is essentially a simplified version of the Swingwing hang glider or powered hang glider. The wings are fabric-covered aluminum tube and are a rectangular-planform type braced by V struts. The two wheels are for ground handling only, so the Sunfun is footlaunched and foot-landed. A 10-hp engine and fuel tank are installed beneath the wing and behind the pilot so that takeoff can be performed without benefit of a steep hill. Wingspan is 36 feet 6 inches, and total weight is 110 pounds. The Volmer VJ‑24E Sunfun has a useful load of about 200 pounds, burns about 1.5USG per hour.
A minimum powered glider, the VJ-24W is a modified version of VJ-24E Sun Fun hang glider with wheeled landing gear, tractor engine, independent rudder control, manufactured by Airway Aircraft Inc., 905 AirwayAve., Glendale, CA 91201, USA.
Fairing behind pilot cuts drag. Independent three-axis controls. Construction is all metal with Dacron cover. Yamaha KT100 or McCulloch 101 engine. Two main wire wheels, tail skid undercarriage.
VJ-24
Wingspan: 36 ft
Wing chord: 4 ft 6 in
Wing area: 160 sq.ft
Empty weight: 110 lb
Speed range: 18-25 mph
VJ-24
Chord length: 4.5 ft
Wing span: 36.5 ft
Wing area: 163 sq,ft
Aspect ratio: 6.75
Weight: 110 lb
Pilot weight: 160-200 lb
Takeoff speed: 13 mph
Stall speed: 15 mph
Max speed: 30 mph
Best glide ratio (L/D): 9.5
Best L/D speed: 17 mph
Min sink: 158 fpm
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