B-47 Stratojet Bomber Range Computer (Aluminum) Rev. 1, Mar 1952 Lily Bomber The glass is show a

The glass is show a little haze which could be readily cleaned if opened

and its pages appear to be in place

By turning the crank

the tachometer is in the middle of the second column of instruments from the right) and MIL MI-4 (see cockpit photo

Here is a photocopy of the US Navy's P-3C Orion Electrical and Instrument Systems Illustrated Parts Breakdown dated March 1971 revised January 1974

B-47 Stratojet Bomber Range Computer (Aluminum) Rev. 1, Mar 1952 Lily Bomber The glass is show aThis is an authentic Range Computer designed specifically for use in the USAF Boeing B 47 Stratojet Strategic Bomber in 1952. This rather complicated 7 inch computer is essentially a 3 disk slide rule used to determine the range of the aircraft in nautical miles under various conditions of air speed, outside air temperature, altitude, aircraft weight, and number of engines in use. This version has an aluminum center disk with two rotating plastic