Into Production
Following the Servo Design & subsequent trials , H. E. R. Coward, Chief Machinist, Royal Engineers Eastern Division produced a second report in November 1941 detailing how the Servo Assisted Control Mechanism had been tidied up and the whole prototype turned into a production run at the works of D. Wickham & Co., Ware, Hertfordshire.
(reproduced from the book "Wickham of Ware" page 79 - shows a Target Trolley with mounted Tank target)
The production run commenced in 1941 and in total 255 target Trolleys were produced and sent to firing ranges in Britain and to some of our allies overseas territories. Each trolley was fitted with a 1323cc J. A. Prestwich (JAP) side-valve engine, with drive via fluid flywheel.
The tank targets were initially made of a wooden frame covered in painted hessian however, these developed into wooden bodies with fibreglass turrets mounted on top.
The Trolleys were designed to operate on loop tracks and therefore are not fitted with a reverse gear.