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).
Blueprints for a new large diameter American type matrix tube for the 20/25 HP chassis radiator.
| Identifier | ExFiles\Box 105\1\ scan0156 | |
| Date | 13th August 1931 | |
| To R.H.C. c. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Handwritten: @13 8.31 85250 BY/CS4/EH.13.8.31. Re 20/25 HP Chassis - Radiator - Sec:5250. Large diameter American/Type Matrix Tube. Please receive herewith two blueprints of the following: E.57006 Matrix Tube which replaces E.56327. Will you please instruct as required, (the approximate number of tubes for standard radiator is 5,700 and for 19-G-4 type radiator, is 6,850) remainder of parts to LOP.E.56463 and memo' BY/CS1/EH.24.7.31., respectively. This completes instructions for experiment, which is in accordance with memo' Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}5/MJ.23.7.31. BY/CS. | ||