F.94 Data Sheet MJS-p-0411

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Felsenthal, Aerial Dead Reckoning Computer, 1942

Serial Number or Date Stamp:

Country: USA

Primary construction material: ss

Case included?: yes

General Description: Specialty circular aviation slide rule

Length of 1 decade = 14 in, and overall scale length = 14 in. The largest physical dimension is 6 in.

Front Scales: mi [ min hr ] Temp/Press

Back Scales: true [ wind ]

Notes: Early WWII E-6B type (Contract No. 42-18253-P); original yellow-green chart slide; leather case; U.S. Army Air Corps; wt = 10.5 oz

References: JOS 6.2 p32 (1997)

Date Acquired: 02/24/2026