InterPlane Starboy

Starboy
Artist's three-view rendering of the InterPlane Starboy
Role	Homebuilt aircraft
National origin	Czech Republic
Manufacturer	InterPlane Aircraft
Status	Proposed (1998)
Number built	None

The InterPlane Starboy was a proposed Czech homebuilt aircraft designed by InterPlane Aircraft of Zbraslavice. The aircraft was intended to be supplied as a complete ready-to-fly-aircraft or as a kit for amateur construction, but none seem to have been built.^[1]

Design and development

The Starboy design featured a cantilever low-wing, a two-seats-in-side-by-side configuration enclosed cockpit under a bubble canopy, fixed tricycle landing gear with wheel pants and a single engine in tractor configuration.^[1]

The aircraft was to have been constructed of a combination of aluminum and composite materials. Its 8.0 m (26.2 ft) span wing would have had a wing area of 12.41 m² (133.6 sq ft). The standard engine proposed was the 80 hp (60 kW) Rotax 912UL.^[1]

The aircraft was to have a typical empty weight of 245 kg (540 lb) and a gross weight of 450 kg (990 lb), giving a useful load of 205 kg (452 lb). With full fuel of 50 litres (11 imp gal; 13 US gal) the payload for pilot, passenger and baggage would have been 169 kg (373 lb).^[1]

The manufacturer estimated the construction time from the planned kit as 500 hours.^[1]

Specifications (Starboy)

Data from AeroCrafter^[1]

General characteristics

• Crew: one
• Capacity: one passenger
• Length: 8 m (24.80 ft)
• Wingspan: 10 m (34.40 ft)
• Wing area: 12.41 m² (133.6 sq ft)
• Aspect ratio: 8.8:1
• Empty weight: 245 kg (540 lb)
• Gross weight: 450 kg (992 lb)
• Fuel capacity: 50 litres (11 imp gal; 13 US gal)
• Powerplant: 1 × Rotax 912UL four cylinder, air and liquid-cooled, four stroke aircraft engine, 60 kW (80 hp)

Performance

• Maximum speed: 220 km/h; 119 kn (137 mph)
• Cruise speed: 150 km/h; 81 kn (93 mph)
• Stall speed: 55 km/h; 30 kn (34 mph)
• Rate of climb: 7.04 m/s (1,386 ft/min)
• Wing loading: 36 kg/m² (7.4 lb/sq ft)

References

1. Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition, page 353. BAI Communications, 15 July 1998. ISBN 0-9636409-4-1