shunt dynamometer for J Class yacht RANGER

shunt dynamometer

INSTRUMENTS
Aluminum Co. of America
Circa May 11, 1937
12.50 x 32.00 x 0

Shunt dynamometer, used to check backstay tackle tension, halyard and wire sheet tensions; with calibration sheets ; plaque engraved "MAY 11, 1937/ TO SLOOP RANGER/ FROM/ ALUMINUM COMPANY OF AMERICA/ I will have nothing to do with/ Ships that are not fast/ John Paul Jones"; presented to Harold Vanderbilt in spring of 1937; used on RANGER; in plywood box.


1981.101.4

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