Patents Assigned to Sandleir VTOL Aircraft Co., Ltd.
  • Thrust unit for VTOL aircraft
    Patent number: 5407150
    Abstract: A thrust unit for an aircraft having a lift unit for propelling the aircraft in upward flight. The lift unit includes a duct for directing air substantially downwardly, the duct being shaped so that air exhausting from its downstream end is in a stream having substantially the same cross-sectional dimension of the duct at the downstream end, and an air pump disposed for inducing a draught of air through the duct. In use, the draught of air exhausting from the duct can produce an upward thrust and is substantially non-convergent.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: April 18, 1995
    Assignee: Sandleir VTOL Aircraft Co., Ltd.
    Inventor: Kimberley V. Sadleir