Archive of Collections

Details and Image

TypeModel No.MakerCountryConstruction
DateScale LengthArea of Use
Mark 5
Blundell HarlingEngland
1967 or after60 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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