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

Litton 800990-2 LTN-92 Inertial Navigation System (INS). Very good condition. Some tamper seals from last service/calibration are intact. With mounting tray and 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.

  ​

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

  ​

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

  ​

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.

​

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.