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Home > Auction >  The Golden Age of Motoring Sale '1886-1939' >  Lot.12 A British World War II era laminated wooden 4 bladed generator propeller, late 1930s-40s, used to...

LOT 12 A British World War II era laminated wooden 4 bladed generator propeller, late 1930s-40s, used to...

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GBP300
Estimate  GBP  300 ~ 400

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邦瀚斯

The Golden Age of Motoring Sale '1886-1939'

邦瀚斯

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A British World War II era laminated wooden 4 bladed generator propeller, late 1930s-40s, used to power a drogue winch used by a target tug aircraft, marked with DRG drawing number T29505 and 4483 on the hub, the back of the hub with stamped numbers for each blade, numbered 1 to 4 (4 obscured by damage), 900mm diameter, light weight four plank mahogany laminate with 92mm diameter metal plates mounted to front and rear faces of hub for 15mm shaft, the face plates partially covering 2 circular impressed R.A.E acceptance inspection stamps and various other stamps, some loss to edges. Footnotes: A high capacity wind powered electrical winch used in the air stream of a towing aircraft, which let out a line attached to which would have been a target drogue for either gunnery or machine gun fire. A target tug is an aircraft which tows an unmanned drone. A high capacity wind powered electrical winch used in the air stream of a towing aircraft, which let out a line attached to which would have been a target drogue for either gunnery or machine gun. Target tugs were often conversions of transport and utility aircraft, as well as obsolescent combat types. Some, such as the Miles Martinet, were specially designed for the role. It was, and is, a relatively hazardous job, as live fire is typically employed and the people doing the shooting are usually still in training. The student fighter pilots or air gunners would shoot at the target from other aircraft using painted bullets so that hits could be recorded and later analysed. In the RAF, Miles Master IIs were used for this purpose as part of the Target Towing Flight at the Central Gunnery School whilst the School was based at RAF Sutton Bridge from April 1942 to March 1944. Other aircraft used in this role during WWII the RAF used aircraft including the Hawker Henley, the Boulton Paul Defiant and the Westland Lysander as target tugs. The chief modifications to these aircraft were a station for the drogue operator and a winch to reel in the cable prior to landing. The winch was typically powered by a small propeller driven wind-turbine on the outside of the aircraft, driven by the airflow and attached to the winch via a clutch. Such devices are still used by some aerial refuelling tankers to retract the refuelling hose after the operation is completed. The drogue would often be jettisoned at some location convenient for recovery prior to the aircraft's landing. The drogue itself caused a great deal of drag and could be dangerous, particularly to less-powerful aircraft. If the engine failed, the drag from the drogue could be enough to reduce the airspeed of the aircraft below stall speed before the drogue could be jettisoned. For further information on this lot please visit Bonhams.com

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101 New Bond Street London W1S 1SR United Kingdom

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  • Commission  GBP
  • 0 ~ 2,50027.5%
  • 2,501 ~ 300,00025.0%
  • 300,001 ~ 3,000,00020.0%
  • 3,000,001 ~ Unlimitation13.9%

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