Bidspirit auction | 9' DH4 Bomber Plane Wooden

9' DH4 Bomber Plane Wooden Propeller WWI - WWI DH4 Bomber Plane Wooden Propeller This impressive wooden propeller comes from a DeHaviland 4 bomber flown in World War I. It measure 106” long and 10” wide, and weighs in at 50 lbs. Propeller markings meanings according to USAF Museum: ?? C.904 No. 8: Likely part of the drawing number or design batch. ?? 4.200 BHP: This represents engine speed specifications, as Siddeley-Deasy engines could produce 200-300 HP. ?? D.2750 / P.2550: These indicate the diameter and pitch of the propeller. ”D” refers to 2750 mm (approximately 9 feet), aligning with the propeller’s 106-inch size. ?? Commonly used the abbreviation “DE. H.” for De Havilland in the WW1 era. ?? SIDDELEY-DEASY ENG.: Confirms it’s connected to Siddeley-Deasy, for World War 1 bombers.