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Capella Javelin

The Capella Javelin is a family of American open cockpit, high wing, tractor configuration, conventional landing gear-equipped ultralight aircraft that were designed by J. Reid Howell and produced in kit form by Capella Aircraft of Austin, Texas and intended for amateur construction.
First flying in 1998, the single seat Javelin I was designed to comply with the American FAR 103 ultralight regulations, including that category's maximum 254 lb (115 kg) empty weight. The 2001 cost was US$6000 without engine, propeller, instruments or covering supplies.
The design features an open frame fuselage of welded 4130 steel tubing, with the pilot's and passenger's seats bolted to the frame. The horizontal stabilizer and tail fin are also constructed of welded steel tubes. The wing is framed from riveted aluminium tubing with all flying surfaces covered in doped aircraft fabric. The wing is equipped with full span ailerons.
The conventional landing gear includes sprung-steel main gear and a similarly sprung steerable tail wheel. The open cockpit design provides good visibility while taxiing.
The standard engine supplied by the manufacturer for the single seat version was the 28 hp (21 kW) Rotax 277, but it was reported that the aircraft was underpowered with that engine installed. The throttle control is of a unique motorcycle grip type.
Original factory kit options included a cockpit pod and windshield, brakes and steel tube powder coating.
The single-seat Javelin was developed into a tandem two-seater, designated the Javelin II and then further developed into the T-Raptor ultralight trainer. The T-Raptor uses a wider and more enclosed fuselage, with optional bubble-windowed doors, to allow cool weather flying and was intended to be marketed to ultralight schools.
Capella Aircraft went out of business in late 2007, and the type is no longer in production.
Javelin I
Single seat open cockpit ultralight
Engine: 1 × Rotax 277, 28 hp (21 kW)
Wingspan: 28 ft 0 in (8.53 m)
Wing area: 112 sq ft (10.4 sq.m)
Length: 18 ft 0 in (5.49 m)
Height: 6 ft 0 in (1.83 m)
Empty weight: 240 lb (109 kg)
Gross weight: 575 lb (261 kg)
Fuel capacity: 5 US gallons (19 litres)
Maximum speed: 63 mph (101 km/h, 55 kn)
Cruise speed: 60 mph (97 km/h, 52 kn)
Stall speed: 26 mph (42 km/h, 23 kn)
Range: 140 mi (220 km, 120 nmi)
Service ceiling: 12,500 ft (3,800 m)
Rate of climb: 400 ft/min (2.0 m/s)
Seats: one
Javelin II
Two seats-in-tandem open cockpit ultralight trainer powered by a 50 hp (37 kW) Rotax 503 engine. It was reported as being in development in 1998 and forecast to be available at the end of 1998.
Two seats-in-tandem ultralight trainer powered by a 50 hp (37 kW) Rotax 503, 64 hp (48 kW) Rotax 582 or 60 hp (45 kW) HKS 700E four stroke engine. The T-Raptor has an expanded-width steel cage to provide a more enclosed cockpit and is a development of the Javelin II.
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