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Old 01-14-2020, 07:56 AM   #1
synergy
 
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Default 12'4" wooden prop

Suspended on ceiling and unable to see any stamps, nos, ect on reverse side.
Uncut with blades covered with a protective black linen type material.
Maybe unused and originally thought to be a Watts make.
Too long for Spit/Hurri/Fury and has low speed tips.
Poss. seaplane but....any body go any further ?
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Old 01-14-2020, 09:20 AM   #2
Dbahnson
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There's not too much to go on. At that size it might be for an airship of some kind, and note that it's a left hand thread, which can indicate a pusher configuration.
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Old Yesterday, 09:39 AM   #3
Bob Gardner
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Hello Synergy!

Your prop is British and probably dates from late WW1 or the 1920's. Can you tell us how long it is? I might then be able to identify it. It has none of the characteristics of a Watts prop, nor is it from a seaplane. It is probably covered in Irish Linen painted black, which is characteristic of RAF props from 1918 until circa the mid 1930s when a Hydulignum finish came into use. This was a process devised in Germany in the 1930s and made under licence in GB. It is described elsewhere on this forum. The process used many thin laminations glued together, a process today called laminates, and the laminates were put into a sheath before the whole prop was immersed in liquid resin at a high temperature.

With kind regards,

Bob
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Old Yesterday, 10:17 AM   #4
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In the thread title its 12 feet, 4 inches. Note the 10 bolt hole hub and the left hand thread.
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