Schubert P-1
P-1 flying over Luziânia, 2008.
Role Sailplane
National origin Brazil
Designer Ekkehard Schubert
First flight 3 Mar 2002
Number built 1
Developed from ITA P-1

The Schubert P-1 is a sailplane produced in Brazil, designed by the aeronautical engineer Ekkehard Schubert.[1][2]

Design and development

The fuselage construction is made of FRP, in single shell, with two caverns for fixing the wing and the landing gear. The fuselage structure includes the drift structure, whose surface is made of FRP and PVC foam sandwich. The rear spar of the drift, with FRP tables (uni-directional fabric or roving) and FRP sandwich core supported by PVC foam, closes the entire structure. The wing-fuselage connection is made by means of the two caverns, in which the half-wings are connected by means of two wing-wing connecting pins.[3]

The three-dimensional geometry of the fuselage cabin is derived from a two-dimensional profile, accommodated in the flow of the wing. Negative camber at -1.7 m, at the wing tip, measured at the aileron articulation axis. Schempp-Hirth brakes on the extrados.

The first flight of the P1 was on March 3, 2002, at CTA in São José dos Campos.

Specifications

General characteristics

  • Crew: 2
  • Length: 8.3 m (27 ft 3 in)
  • Wingspan: 16.5 m (54 ft 2 in)
  • Height: 1.74 m (5 ft 9 in)
  • Wing area: 16.01 m2 (172.3 sq ft)
  • Airfoil: NACA 663-018 at root NACA 662-015 at tip
  • Empty weight: 320 kg (705 lb)
  • Gross weight: 520 kg (1,146 lb)

Performance

  • Maximum speed: 156 km/h (97 mph, 84 kn)
  • Maximum glide ratio: 1:33
  • Rate of sink: 0.6 m/s (120 ft/min)
  • Wing loading: 32.0 kg/m2 (6.6 lb/sq ft) maximum

See also

Aircraft of comparable role, configuration, and era

References

  1. ↑ Yuri Vasconcelos. "Berçário de aviões" (PDF). São Paulo Research Foundation. Retrieved 13 November 2021.
  2. ↑ "Federação Brasileira de Voo a Vela traz competição regional a Bebedouro". G1. Retrieved 13 November 2021.
  3. ↑ "Planador com concepção nacional". São Paulo Research Foundation. Retrieved 13 November 2021.
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