Uncommon spiral-bound “Orbiter Wire Calculator” booklet from the Space Shuttle program, 8.5 x 11, with the interior containing a rotating calculator and a list of steps for solving wire gauge, resistance, length, temperature, current, voltage drop, and weight, with the back cover featuring several charts and lists relative for “Circuit Protection and Characteristics.” Designed by J. R. Fuhrman in March 1976. In fine condition.
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