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).
Estimation of cost savings for the Phantom III exhaust system by using aluminised mild steel.
| Identifier | ExFiles\Box 93\1\ scan0087 | |
| Date | 13th January 1937 | |
| Rm{William Robotham - Chief Engineer}/Whym. E/Lid.{A. J. Lidsey}8/HP.13.1.37. Phantom III Exhaust System Costs. We have now received from our Cost Department an estimation of the saving to be achieved by using aluminised mild steel in the place of S/HNC for certain Phantom III exhaust parts. The points covered are as follows:- (1) Front downtake pipes in aluminised mild steel - 14 SWG instead of S/HNC 14 SWG. (2) Front expansion box in aluminised mild steel - 16 SWG instead of S/HNC 14 SWG. (3) Intermediate pipe in aluminised mild steel - 16 SWG instead of S/HNC 14 SWG. The estimated saving due to the above is approximately £5. 0. 0 per chassis. We have not yet received an estimate for the new type of rear silencer and tail pipe. This will follow on at a later date. E/Lid.{A. J. Lidsey} | ||