DescriptionNASA Space Shuttle Horizontal Situation Indicator. A sophisticated piece of equipment as used by the STS program, 5" x 5.25" x 8" in size. This originally came from a simulator used in astronaut training. There is a metal ID tag on the back from Astronautics Corp of America with the following information: "Horizontal Situation Indicator/ PN 123080/ SN 1001/ Contr 10910". On the top at front is a "USA 2004-2006 INV" sticker with another on the front: "USA NASA 9-20000 SFOC". USA stands for United Space Alliance, the Shuttle support contractor. On the front is a 360° compass and two mileage meters, one (PRI) reading "059" and the other (SEC) reading "049". There are two multi-pin electrical connectors on the back. A rare artifact and outstanding for display. Some expected scratches and light wear, overall fine.
Please note: Due to government regulations, this can be sold only to U.S. residents.
Information from NASA: "The horizontal situation indicator for the commander and pilot displays a pictorial view of the vehicle's position with respect to various navigation points and shows a visual perspective of certain guidance, navigation and control parameters, such as directions, distances and course/glide path deviation. The flight crew uses this information to control or monitor vehicle performance. The HSIs are active during the entry and landing and ascent/RTLS phases. Each HSI displays magnetic heading (compass card), selected course, runway magnetic course, course deviation, glide slope deviation, primary and secondary bearing, primary and secondary range, and flags to indicate validity."
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