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INERTIAL NAVIGATION SYSTEMS

  • US 3,790,766 A
  • Filed: 03/05/1971
  • Issued: 02/05/1974
  • Est. Priority Date: 03/05/1971
  • Status: Expired due to Term
First Claim
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1. For an inertial guidance system for aircraft based on a ship, where each aircraft carries a three-axis inertial platform including three single-axis gyros and two linear accelerometers with an associated navigational computer, reference equipment, common to the said aircraft, for location on the ship and including a three-axis reference inertial platform similar to the said inertial platform carried by each aircraft, means for operating the reference equipment so that in operation the platform is maintained in a predetermined horizontal plane and orientated in a predetermined compass direction, pickoff means for deriving signals from the reference platform to represent orthogonal components of the ship'"'"''"'"'s acceleration and velocity at the reference platform, means for converting those derived signals to local resolved values at each aircraft in dependence on the distance and bearing of the aircraft from the reference equipment, and means for applying those local resolved signals to the inertial equipment of the aircraft so as to level its inertial platform prior to take-off.

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