Uncertain of the maker of this prop. Simply a guess that it could be an airship prop. Could even be an orchard fan prop.
MARKINGS:
Hub Front: 281
Hub Back: 281
Hub Top: First line is very hard to make out and I can't tell if it's all numbers or if there's a letter/symbol present.
First line:
E 2 prop symbol 5 - or - I 3 2 5 (again... very hard to read)
Second line:
281
DIMENSIONS:
Length: 120.25"
Hub Thickness: 4, 7/8" (~5")
Hub Diamater: ~12"
Hub Bore: 3.25"
Bolt holes:
Larger countersunk holes: 1.25" wide x 1.25" deep
Smaller holes all the way through: 5/8"
Crush plate indentations:
Front: 9.5" Diameter
Back: 9.25" Diameter
MARKINGS:
Hub Front: 281
Hub Back: 281
Hub Top: First line is very hard to make out and I can't tell if it's all numbers or if there's a letter/symbol present.
First line:
E 2 prop symbol 5 - or - I 3 2 5 (again... very hard to read)
Second line:
281
DIMENSIONS:
Length: 120.25"
Hub Thickness: 4, 7/8" (~5")
Hub Diamater: ~12"
Hub Bore: 3.25"
Bolt holes:
Larger countersunk holes: 1.25" wide x 1.25" deep
Smaller holes all the way through: 5/8"
Crush plate indentations:
Front: 9.5" Diameter
Back: 9.25" Diameter