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).
Part requirements for mounting a Type A.A. Gun in a Spitfire wing for rig and flight tests.
| Identifier | ExFiles\Box 176\1\ img182 | |
| Date | 13th May 1941 | |
| [Redacted] from Rm{William Robotham - Chief Engineer}/HH. c. to Rm.{William Robotham - Chief Engineer} c. [Redacted] c. [Redacted] c. [Redacted]/SP.{Mr Spinney} Rm{William Robotham - Chief Engineer}/HH.1/SW.13.5.41. Type A.A. Gun in Spitfire Wing QPL.182. Further to our memo reference Rm{William Robotham - Chief Engineer}/HH.4/SW.3.5.41., issuing details for the above scheme. We would point out that the numbers off are for one wing (Starboard) only, i.e., for the rig test at Sinfin. For the flight test at Hucknall, in order to provide for two wings, the numbers off should be doubled, with the exception of QR.333/4, which will remain at 2 off each. A handed Plummer Block & Cap QR.351/2 - 2 off each, will then be required for the port wing. Enclosed please find three prints of QR.351/2. Rm{William Robotham - Chief Engineer}/HH. | ||