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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Linear
Mark 5
Blundell Harling
England
Plastic
1967 or after
60 cm
"Pilot Balloon Slide Rule"
Notes:
"See article J. Oughtred Soc. 5(2), p. 51, 1996: Feazel, The pilot balloon slide rule. My father, a weatherman in the U.S. armed forces in the Pacific Theater during WWII, took measurements of pilot balloons.
A PDF Manual is available. Please click
HERE.
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