Star Control Assembly Short Sunderland Two inner dials labeled Magnetic

Two inner dials labeled Magnetic Course or Bearing and Compass Course or Bearing rotate within the outer ring labeled True Course or Bearing

Type 98 as made by Yanagi

piston aircraft

The photos show both the external and internal workings of the gun sight: an exquisite electro-mechanical computer developed well before the era of microchips

but the pages inside appear intact

Star Control Assembly Short Sunderland Two inner dials labeled MagneticThis 2 piece device is thought to be part of the MD 1 Astro Navigation System used in early B 52 bombers, but we cannot confirm this. It consists of a sighting mechanism that includes a mirrored lens, and a cover which probably affixed to another housing assembly. Measures ~ 11 inches x 5 inches. Knowledgeable visitors are invited to email additional information.