Litton 800990-2 LTN-92 Inertial Navigation System (INS)

Litton 800990-2 LTN-92 Inertial Navigation System (INS). Carefully removed from operational aircraft. Good condition. No mounting tray or connector dust caps. Purchaser responsible for any certification before use in an aircraft. As shown.

The Litton 800990-2 is a part number for the LTN-92 Inertial Navigation System (INS), a laser gyro replacement for mechanical INSs used on many military transport and commercial aircraft, including “classic” B747s, DC-10s, and L-1011s. 

​The Litton LTN-92 Inertial Navigation System (INS) is an advanced, all-attitude navigation solution designed to deliver precise position, velocity, and attitude data for various aircraft applications. Utilizing state-of-the-art ring laser gyroscopes and force rebalanced accelerometers, the LTN-92 offers enhanced reliability and accuracy compared to traditional mechanical inertial systems.

Key Features:

• Advanced Sensor Technology: Incorporates three ring laser gyros and a triad of force rebalanced accelerometers to measure angular rates and accelerations, ensuring high-precision navigation data. ​

• Digital Processing: Equipped with three high-speed digital microprocessors that process sensor inputs to provide real-time navigation information. ​

• Data Storage and Management: Capable of managing internal navigation bulk data storage, allowing for comprehensive worldwide flight planning. ​

• System Components: Comprises three separate units: the Inertial Navigation Unit (INU), the Control/Display Unit (CDU), and the Mode Select Unit (MSU), facilitating user-friendly operation and control.

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• Operational Flexibility: Accepts Area Navigation (RNAV), Global Positioning System (GPS), or manual position updates, enhancing performance and adaptability.

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• Enhanced Reliability: Offers up to five times the reliability of mechanical inertial navigation systems, reducing maintenance requirements and operational costs.

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Applications:

The LTN-92 is suitable for a range of aircraft, including military transports and commercial airliners such as the Boeing 747, DC-10, and L-1011. Its high accuracy and reliability make it ideal for operations requiring precise navigation data, even in environments lacking external navigation aids.

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In summary, the Litton LTN-92 INS represents a significant advancement in inertial navigation technology, offering aircraft operators a dependable and precise navigation solution that enhances flight safety and operational efficiency.