From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Outlining the programme for the first and second service trials of the 40 m.m. Naval Gun type BD.
| Identifier | ExFiles\Box 175\3\ img138 | |
| Date | 11th September 1940 | |
| To Rm{William Robotham - Chief Engineer}/CTC. c. to Rm.{William Robotham - Chief Engineer} c. to Rm{William Robotham - Chief Engineer}/HH. Ev.{Ivan Evernden - coachwork}1/JH.11.9.40. 40 m.m. Naval Gun type BD.{Mr Berend} At the suggestion of Rm{William Robotham - Chief Engineer}/CTC. who is now to handle the commercial side of the type BD{Mr Berend} gun, mountings, etc. we are making a statement attempting to describe the programme as we understand it. We are open to correction. First Service Trials Gun. The first service gun is being produced at the moment by HPS.{Horace Percy Smith - Experimental Factory Mgr} It has an aluminium cradle, recoil cylinder, etc. It will be mounted on the Cerlim Mounting and will have an ammunition tray and armour shields. On Appendix sheet 1, we give a list of schemes which are applicable to this gun. It will be seen that the outstanding design items which have resulted from Lt: Cdr{W. J. Chandler - Chief Clerk}: Young's visit yesterday are :- (a) The addition of a shield at the front of the gunners face. (b) Modified armour shield to our original scheme QP.123. This gun has to be delivered by September Oth. complete with armouring, made in mild steel plate for experimental purposes. The gun we understand will be delivered to the Power Boat Co. Hythe, Southampton, for fitting to a motor Torpedo Boat. Second Service Trials Gun. The second service trials gun as far as the gun and cradle are concerned will be identical with the first. The mounting will be the pedestal mounting, now being produced by the L.M. & S.R. Cont'd.{John DeLooze - Company Secretary} | ||