SP-18 Onça
The SP-18 Onça (Brazilian-Portuguese name for the Jaguar) also known as the IPAI-27 Jipe Voador, was a Brazilian single-seat, single engined experimental agricultural aircraft.[1][2]
| SP-18 Onça | |
|---|---|
| Role | Experimental aircraft |
| National origin | Brazil |
| Manufacturer | Instituto de Pesquisas Tecnologicas |
| Designer | Romeu Corsini |
| First flight | 1965 |
| Number built | 1 |
Design and development
Developed by Brazilian engineer Romeu Corsini, it was designed to be an aircraft used in agriculture. It had STOL aircraft capabilities.[2]
The fuselage was made of welded steel tubes, externally covered in canvas, fixed landing gear, a "T" rudder to facilitate low-speed maneuvers, wooden, high-support wing.[1][3]
Flight testing went on for nearly a decade, and brought a number of improvements to the aircraft. The aircraft was eventually used for studies by aeronautical engineering students from São Carlos, under Corsini's supervision. It ended up influencing the construction of another aircraft, the IPAI-26 Tuca.[3]
Specifications
Data from Taylor 1986, p. 20, Pereira 1986, p. 217
General characteristics
- Crew: 1
- Length: 7.50 m (24 ft 7 in)
- Wingspan: 12 m (39 ft 4 in)
- Height: 2.50 m (8 ft 2 in)
- Wing area: 18 m2 (190 sq ft)
- Gross weight: 900 kg (1,984 lb)
- Powerplant: 1 × Franklin O-300 , 123 kW (165 hp)
- Propellers: 2-bladed
Performance
- Stall speed: 68.5 km/h (42.6 mph, 37.0 kn)
- Wing loading: 50 kg/m2 (10 lb/sq ft)
Notes
- Taylor 1981, p. 19
- Pereira 1986, p. 215
- Pereira 2013, p. 361
References
- Taylor, John W. R. (1981). Jane's All The World's Aircraft 1980–81. London: Sampson Low, Marston & Company, Ltd.
- Pereira, Roberto (1986). História da Construção Aeronáutica no Brasil 1910-1976. São Paulo: Editora Aquarius.
- Pereira, Roberto (2013). Construção Aeronáutica no Brasil - 100 Anos de História. São José dos Campos: Construção Aeronáutica no Brasil - 100 Anos de História.