F.86 Data Sheet MJS-p-0228

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Felsenthal, AN 5837-1, 1943

Serial Number or Date Stamp:

Country: USA

Primary construction material: pl

Case included?: box

General Description: Specialty circular aviation slide rule

Length of 1 decade = 60 in, and overall scale length = 60 in. The largest physical dimension is 8 in.

Front Scales: PressGnd MeanTemp [ AltTru AltInd ]

Back Scales:

Notes: Altitude Correction Computer; B/W main spiral scale, with fluorescent markings; WWII

References: https://www.madeinchicagomuseum.com/single-post/g-felsenthal/, https://sliderulemuseum.com/Aerospace.htm

Date Acquired: 11/22/2021