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What is the difference between IRS and INS ??

Asked by: 5258 views General Aviation, Instrument Rating

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1 Answers

  1. Best Answer

    Bill Trussell on Jan 29, 2014

    The use of the term INS has been around for over 30 years since Honeywell and others invented it or created platform using the Ring Laser Gyro. The system was very complex and required a surveyed starting point as the initial point of reference.

    The IRS has taken out a lot of mechanical complexity and replaced it with solid state, non mechanical systems. The basic principles of operation are very similar.

    While the INS was used largely to track or calculate position in space the IRS can provide additional outputs for attitude and rate information such as pitch and turn rates for display.

    Two tutorials might help http://aerostudents.com/files/avionics/InertialNavigationSystems.pdf


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