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).
Diagrams for the installation of a 40 m/m gun in a Beaufighter aircraft.
| Identifier | ExFiles\Box 176\1\ img178 | |
| Date | 13th May 1941 | |
| To Rm.{William Robotham - Chief Engineer} from Ev{Ivan Evernden - coachwork}/JD.{J. Draper - Frames} c.c. to Ev.{Ivan Evernden - coachwork} c.c. to Ve. c.c. to Rm{William Robotham - Chief Engineer}/HH. Ev{Ivan Evernden - coachwork}/JD.{J. Draper - Frames}5/SW.13.5.41. 40 m/m.{Mr Moon / Mr Moore} Gun in Beaufighter. We attach to Rm{William Robotham - Chief Engineer}/HH's copy the originals of :- QPL.187 Section thro' Beaufighter Fuselage at Gun Magazine. QPL.188 Section thro' Beaufighter Fuselage at Front End of Gun Cradle. The above schemes show sections through the Beaufighter Fuselage at points where fouls were liable to occur due to the gun being dropped and rocked inwards at 12½º to the Vertical. QPL.187 gives the position of the trimming cables in relation to the ejection chute hole in the keel plate, it also shows the position of the hopper in relation to the floor stiffeners. QPL.188 shows the working clearance between the door frame and the bottom of the cradle with the gun in its worst position. Ev{Ivan Evernden - coachwork}/JD.{J. Draper - Frames} Original to Rm{William Robotham - Chief Engineer}/HH. Prints to Rm.{William Robotham - Chief Engineer} Ev.{Ivan Evernden - coachwork} Ve. Rm{William Robotham - Chief Engineer}/HH. & Ashby. | ||