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Old 07-23-2016, 01:33 PM   #11
Bob Gardner
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Rick,

The angular shape of the propeller and the brass sheathing identify it as a design of the British propeller maker, Lang. He was lent by the Royal Navy to the USN at their request in 1917.

When the USA entered WW1, in 1917, the progress of aviation in America had been slow for a number of years. In Europe the catalyst of war in 1914, and the arms race which preceded it, had led to rapid developments in aviation.

Lang was loaned by the British Admiralty to bring the mass production of wooden propellers for the USN into being.

Propellers of your shape with the mortised hub were used with the Liberty engine in the Curtiss HS2L flying boat, which had a pusher engine, but they had different data stamped on the hub c.f yours. Please measure it from tip to tip and I might be able to confirm what it was used for.

The letters SE are for the Steam Engineering branch of the USN. Military aircraft were such an unusual novelty that several nations could not work out which branch of their respective service should have overall control of them! (Afternote: woops! I see that Dave had already mentioned this!)

I think you might like to have a copy of one of my books on British WW1 Aircraft Props, Part Three, which has sixty one pages about Dashwood Lang, the majority about Lang in Britain, and eighteen pages describing Lang's work in the USA for the USN; and 109 pages on two other British makers, which are not related in any way to the USA in general nor the USN. If this idea appeals tell me your email address via the personal message facility at top right of this page. I'll give you a discount on the price.

With kind regards,

Bob
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Last edited by Bob Gardner; 07-23-2016 at 04:28 PM.
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Old 07-28-2016, 09:12 AM   #12
RickJ
 
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Hey Bob,
The overall length I measured from tip to tip is 104-1/4".
Thanks again for doing some research as to where it came from. I am also definitely interested in your book, I'll pm you my email address now.
Thanks again
Rick
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