The Worldwide Skyraider S/S, also called the SkyRaider S/S, is an American ultralight aircraft that was designed and produced by Worldwide Ultralite Industries in the early 1980s. The aircraft was supplied as a kit for amateur construction.^[1][2]

The aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 254 lb (115 kg). The aircraft has a standard empty weight of 253 lb (115 kg). It features a cable-braced high-wing, a wide single-seat, open cockpit, tricycle landing gear and a single engine in pusher configuration.^[1][2]

The aircraft is made from aluminum tubing, with the wings and tail surfaces covered in Dacron sailcloth. Its 32 ft (9.8 m) span wing is cable braced from a single kingpost. The pilot is accommodated on a double-width seat designed for wide and heavy pilots or for two smaller people, to a maximum occupant weight of 400 lb (181 kg). The standard Kawasaki 440 40 hp (30 kW) engine is mounted at the trailing edge of the wing, with the rearwards-facing propeller in between the tail boom tubing.^[1][2]

Data from Cliche and the Virtual Ultralight Museum^[1][2]

General characteristics

• Crew: one
• Capacity: one passenger
• Wingspan: 32 ft (9.8 m)
• Wing area: 160 sq ft (15 m²)
• Empty weight: 253 lb (115 kg)
• Gross weight: 680 lb (308 kg)
• Fuel capacity: 4.5 U.S. gallons (17 L; 3.7 imp gal)
• Powerplant: 1 × Kawasaki 440 twin cylinder, two-stroke snowmobile engine, 40 hp (30 kW)

Performance

• Maximum speed: 51 mph (82 km/h, 44 kn)
• Cruise speed: 40 mph (64 km/h, 35 kn)
• Stall speed: 24 mph (39 km/h, 21 kn)
• Range: 105 mi (169 km, 91 nmi)
• Service ceiling: 12,000 ft (3,700 m)
• Rate of climb: 500 ft/min (2.5 m/s)
• Rate of sink: 300 ft/min (1.5 m/s)

• Photo of a Skyraider S/S