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).
List of numbered design considerations and decisions for an engine and its components.
| Identifier | ExFiles\Box 133\3\ scan0114 | |
| Date | 8th January 1940 | |
| -2- and into the engine, the outlet from the engine being at the front end of the cylinder head, I forsee some interesting design work in making a good water and exhaust joint between the manifolds and the cylinder, Bosses on the manifolds should be provided in order that water may be fed into the exhaust tail pipe if desired by the installation people. (7) We want a proprietary make of oil cooler. (8) There was much discussion re Salt resisting aluminium castings, it was thought that we could make a steel buttwelded sump, another alternative is to find out if tin plating is practical for all of the alum castings such as the sump and the induction pipes, I suppose this also applies to carburetters though this metal mix is a zinc lead base. (9) It is unlikely that we shall want anything standing higher on the engine than the distributor, this rules out the downdraft carburetters, updraft carburetters, are used by our competitors with flame traps, intake noise is accepted, (10) It was decided not to fit a hand pump for emptying the oil sump, we say that oil does not require changing since the engine has an efficient bye-pass cleaner, (11) Lifting eyes are needed in the unit. (12) Jnr{Charles L. Jenner}, will see if the unit will drop into the conventional bearers without difficulty, We should use the low rubber engine mounting on a suitable member joining the bearers. we have the possibility of making a high engine mounting now that the water pump will not exist on the front of the cylinder block. (13) Hand starting is not fitted to American engines, however consideration is to be given to fitting same to the gearbox end, (14) we desire more information about generator sizes and charging rates as usually supplied. To avoid breakdown shorts since the wiring is usually in the wet it is necessary to obtain a dynamo with double pole wiring, | ||