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).
Request to modify the Phantom III exhaust system on the experimental vehicle 37-EX.
| Identifier | ExFiles\Box 93\1\ scan0049 | |
| Date | 7th November 1936 | |
| 323 HPS.{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/GHW.1/R.7.11.36. P.III EXHAUST SYSTEM. Will you please fit to the Experimental tail pipe of 37-EX, a perforated tube with 1/8" holes in place of the existing tube with 3/32" holes. Rm{William Robotham - Chief Engineer}/G.H. Whyman. | ||