shunt dynamometer for J Class yacht RANGER
shunt dynamometer
INSTRUMENTSAluminum Co. of America
circa 1937-05-11
overall: 12 1/2 x 32 in.
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