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Advanced Soaring Concepts Spirit

From PlaneSpottingWorld, for aviation fans everywhere

The Advanced Soaring Concepts Spirit is a single-seat Standard class sailplane that is produced in kit form for home-building.

In 1996 concerns were raised about the aircraft's wing, after the wings of two examples failed under load testing at far lower stresses than the aircraft was designed for. This prompted a redesign of the wing root.

There have been accusations in the soaring community that the Spirit and its derivative, the Falcon were largely reverse engineered from the Schempp-Hirth Ventus.

Specifications (Spirit)

General characteristics

  • Crew: one, pilot
  • Length: ft in ( m)
  • Wingspan: 49 ft 2 in (15.00 m)
  • Height: ft in ( m)
  • Wing area: 101 ft² (9.3 m²)
  • Aspect ratio: 24:1
  • Empty: 508 lb (230 kg)
  • Loaded: lb ( kg)
  • Maximum takeoff: 1,160 lb (527 kg)


  • Maximum speed: mph ( km/h)
  • Maximum glide ratio:
  • Rate of sink: ft/min ( m/min)
  • Wing loading: lb/ft² (kg/m²)

Related content

Related development: Advanced Soaring Concepts Falcon

Comparable aircraft:

Designation sequence: