This propeller was purchased at Ravenna Arsenal during the 1940's.Length 8' - Blade width 9 1/2"-Bore 2.730"-Hub dia. 7 3/4"-HUB thickness 4 1/4"-Bolt holes 8-13/32" Bolt circle 6"-weight 27#-Wood perhaps mahogany-Copper clad leading edges-6 laminations-#615 stamped on both sides of hub
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Arsenal Propeller
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The hub dimensions are consistent with use on a Hall Scott engine. One possible use is the Standard J1, but there are certainly other possibilities as well.
See this example.Dave
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Fred/All - no idea if you will see this so much later than your post, but I have a very similar Propeller. It was originally on a Hall Scott A7A (ca. 1920), then subsequently over-drilled for use on a Curtis OX-5. The pilot ground looped his Command-Aire 3C3 in 1939, landing on a grass field in Bauxite, Arkansas, causing symmetrical nicks on the prop edges. The copper cladding on mine extends a bit longer down the edge, so they are not identical, but happy to share lots of details/pictures on my prop’s history if it helps.
also including a pic of the mount I built based on ideas in the forum. Thanks guys!
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