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).
The status and testing specifications for various engine units and components.
| Identifier | ExFiles\Box 155\2\ scan0088 | |
| Date | 19th April 1937 | |
| -2- Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}10/AP.19.4.37 Ph.III. No.16. Following completion of No.10 Unit No.16 will be the next unit on test. This is a complete new unit incorporating solid rockers and camshaft to suit LeC.5401 also other up-to-date features. Full details will be given in the next memo. B.9. Oil consumptions to be continued including a trial of the tin plated pistons. General 1. Report of running of B.19 Unit. 2. " " " " Ph.III.No.3.Unit. 3. " " " " Ph.III.No.8. " 4. " " " " Ph.III.No.14 " -------------------- No.30 Bed. O.H.C. B.23.Unit Completion of tests preparatory to being fitted in B.56.BN.{W.O. Bentley / Mr Barrington} chassis. B.24. Completion of tests in accordance with the previous memo. B.18 Unit This unit to follow B.24. is being assembled for endurance as follows:- 1. Crankshaft has 4 - .125 holes in each pin. 2. Main bearings in N.S.5. (Cadmium Nickel) 3. Big ends 3 in A.C.6. and 3 std. AC.7. Endurance to consist of full throttle running only at usual speeds for 25 hours. Oil inlet temperature at 100°C. and note that the pressure with the large capacity pump should be 30 - 35 lbs/sq.in. Do not run on Ethyl as we do not want to risk having a valve failure to interfere with run of bearings. continued | ||