Circular slide rule for air navigation: "Rhumb lin

Made:
1944 in Texas

Circular slide rule for air navigation: "Rhumb line distance and course computer", plastic, in holder with instructions, designed 1944 by John E. Clemons and made by Simplified Flight Calculator Company, Texas

Details

Category:
Mathematics
Object Number:
1985-279
type:
circular slide rule (navigation)
credit:
Crosby, R.C.
status:
Permanent collection

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