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).
Modified radiator design for production chassis, detailing cost reductions and production arrangements.
| Identifier | ExFiles\Box 9\3\ 03-page075 | |
| Date | 12th January 1938 | |
| To RHC.{R. H. Coverley - Production Engineer} From RM{William Robotham - Chief Engineer}/Std. c.c. HPS.{Horace Percy Smith - Experimental Factory Mgr} By RADIATOR FOR 6 PRODUCTION CHASSIS. It has been decided that the radiator for the 100 sets of production Wraith parts, to be ordered shortly, shall have a bottom tank and outlet scheme similar to D.111 scheme PD.17. This scheme has the advantage that no machined parts are used and that a plain piece of tube is used for the bottom outlet pipe - it is therefore definitely cheaper. Further, it permits the bottom tank to be dip-soldered on to the matrix during the manufacture of the latter and thus gives a further cost reduction and a sounder job, obviating the risk of solder in the bottom tank. In view of this we naturally wish to get this scheme running on several cars as soon as possible. By detailing the pieces within the next day or so and we are arranging to get it on 26.U.VI for 17,000 miles test. Since the six production radiators are not yet built we understand that only two are completed, can RHC{R. H. Coverley - Production Engineer} please arrange to fit this scheme to the remaining four radiators with-out delaying these cars? The major alteration is the new bottom tank. It will be necessary to forward the four matrices and bottom tanks (complete with fittings except outlet pipe) to Messrs. John Marston Ltd. so that they can dip solder the tanks in position. They can complete this in approximately two days from receipt of pieces. RM{William Robotham - Chief Engineer}/Std. RM{William Robotham - Chief Engineer}/Std.2/M.12.1.38. 649 | ||