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Generator Propeller Identification

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  • Generator Propeller Identification

    I recently aquired a pair of WWI Auxiliary Generator Props. They measure 18 inches and are a laminated mahogany construction. Markings include the AIS stamp,and the A (Army?) and arrow marks on one of the hub flat surfaces. The barrel of the hub has one 6 digit number, the letters R A F, then 500 watts and another 5 digit number. Can anyone identify the manufacturer and give an approximate date of manufacture? I thought the R A F might refer to the Royal Aircraft Factory as there are no other manufacturers details. Any help would be very much appreciated.
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  • #2
    Welcome to the forum.

    Your prop was designed by the Royal Aircraft Factory and is likely to date from the second half of 1917. It powered a generator which gave up to 500 Watts and was typically used on large bomber aircraft such as the Vickers Vimy and the Handley Page O/400.

    AIS is actually AID which is the stamp of the Aeronautical Inspection Department and its presence is proof of airworthiness.

    The number T28142 is the drawing number where the letter T indicates the Royal Aircraft Factory who designed it. A known maker of these aux props was WD Oddy of Leeds.

    With kind regards,

    Bob
    Bob Gardner
    Author; WW1 British Propellers, WWI German Propellers
    http://www.aeroclocks.com

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    • #3
      Hi Bob
      Thank you for the information, I bought the props recently at a general auction and got them for very little. I'm pleased with the aquistion now to find somewhere to display.

      Many Regards

      Stan Jobson (Propadom)

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