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).
Surface area required for the Wraith Chassis exhaust system, air silencer, and engine mounting.
| Identifier | ExFiles\Box 6\6\ 06-page107 | |
| Date | 9th January 1937 | |
| To Rm.{William Robotham - Chief Engineer} Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}1/JH.9.1.37. WRAITH CHASSIS. In reply to Rm.{William Robotham - Chief Engineer}5/R.7.1.37. I shall require 25 sq.ft. of surface to accomodate the various parts of the exhaust system, air silencer and enginemounting. Rm{William Robotham - Chief Engineer}/G.H.Whyman/ | ||