Propeller pattern for tugboat ALERT

propeller pattern

PATTERNS & MOLDS
Circa 1913
wood; metal
overall: 17 1/8 x 23 1/2 x 39 1/2 in.

Wooden shipbuilding pattern for 3 blade propeller for tugboat. Single blade with half diameter at center, painted black. Marked on blade in yellow paint: "27568/ TUG ALERT/ DIA. 6'-5"/ Pitch 4'-5"/ 3 Blades". ALERT (steam tug, bu. 1913, owned by T.A. Scott Co., built by New London Marine Iron Works, 99 gr. tons, 89.9 x 19.9.) Diameter of base 14-1/2".


1981.77.1

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