The original long delay pistol in British aircraft bombs known as “Fuze Long Delay McAlpine Type” was used for special operations during the latter part of the 1914-1918 war and is known to have provided delays of 6, 12 and 24 hours. The word fuze in its title was somewhat misleading for its contained no explosive and was used in conjunction with the No. 5B tail pistol. On impact the pistol striker crushed an ampoule of acetone with ‘ate’ through a celluloid washer, the thickness of which decided the delay. In 1922, therefore, its name was changed to “Attachment Long Delay No. 17” and in late 1923, at the conclusion of suitability and safety trials, was approved for general use. This second designation did not last a great time, for numerous modifications in feasible delays, materials and an eventual complete redesign, with include a arming device, changed its role from a ‘Attachment’ to a complete pistol and in 1925 it received its final nam “ Pistol Long Delay No. 17”.
Has someone a drawing and/or a picture of this Fuze Long Delay McAlpine Type also known as Attachment Long Delay No. 17?
Has someone a drawing and/or a picture of this Fuze Long Delay McAlpine Type also known as Attachment Long Delay No. 17?
