Rare SINS Mark IV 4 Gimbal System Aerospace Submarine Rocket Guidance Desk Model For Sale

The fine item you are considering is a Rare SINS Mark IV 4 Gimbal System Aerospace Submarine Rocket Guidance Desk Model. This extremely rare desk model stands approximately 10" tall, 10 1/2" wide and is in overall great antique condition. The only other example I was able to find is in the Smithsonian Air & Space Museum and was a gift from Dr. Charles Stark Draper, who invented the guidance system represented by this model in the 1950's. All the little identifying labels are still on the model but it looks like there was a label on the back which is missing (see photos). Here's some additional information from the Smithsonian: "This is a model of one internal component of the SINS (Ships Inertial Navigation System) Mark IV developed in the early 1950s by Dr. Charles Stark Draper. Inertial navigation systems use gyroscopes and other instruments to feed information into a computer, which calculates the degree of drift from the intended course and recommends any needed corrections. Dr. Draper, founder of the Massachusetts Institute of Technology's Instrumentation Laboratory, was known as the "father of inertial navigation." He started working on the theory and technology of these systems in the 1930s, and through the decades his work led directly to their development and use in U.S. aircraft, rockets, missiles, ships, and manned and unmanned spacecraft. This is a model of a key part of a SINS, a complex navigation system. After World War II, all U.S. Navy submarines and many ships used the system to find their way. The SINS also had gyroscopes, a computer, and other onboard instruments that worked together to guide the vessels. The Draper Instrumentation Laboratory made the model and Dr. Draper donated it to the Museum in 1974." Please see my photos to have a look at this nice item. Winning buyer/buyer pays $32.00 shipping and insurance in the contiguous U.S., plus $2.00 for packing materials (bubble wrap) with shipping to Alaska and Hawaii most likely costing more. If you are in Alaska or Hawaii, please contact me for a shipping estimate. Foreign buyers/buyers pay costs as per 's Global Shipping Program. Due to the large amount of items I now sale, I can unfortunately no longer allow in person pick up of items. My return policy is that returns are only accepted if I made a mistake in the listing, not disclosing a serious issue with the item, in other words, if the item is substantively different than as described in my listing. Thanks for looking, and happy offerding/buying!

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