MB-4 AIR NAVIGATION AERIAL COMPUTER 1946 W/ USAF INST

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  • Item Category: Sports
  • Source: eBay
  • Sold Date: Jun 16,2008
  • Channel: Online Auction

Offered for auction is this aged US GI flight computer identified as COMPUTER, AIR NAVIAGATION, DEAD RECKONING TYPE MB-4 per Specification Mil C-54148. The MFGRS PART NO. FAA-46C suggest it was manufactured in 1946 by FELSENTHAL INSTRUMENTS CO. The pilotâe(tm)s âe~whiz wheelâe(tm) is intact, fully functional and shows usage, a âe~AF58 14086âe(tm) stamped number and comes in a worn leather pouch. The body of the computer appears to be aluminum and the hard plastic hanging loop shows a material crack. Discovered with the computer was a US Air Force Instructions book titled DEAD RECKONING COMPUTERS AF Manual 51-12 >. The illustrated instructions manual covers the step by step operations of the MB-2A & MB-4 Types Dead Reckoning Computers. The technical book measures 8 ¼âe x 10 ½âe, has 76 pages of problem solving techniques on these types of aerial computers. The is intact but shows page age yellowing and some slight cover smudge marks and stains.

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