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 proposed engine and tank testing procedures, including gradient, routine, and bench tests.
| Identifier | ExFiles\Box 25\1\ Scan023 | |
| Date | 22th April 1932 guessed | |
| (5) Gradient Tests. (a) Observe engine for oil leaks at front and rear ends, and from auxiliary drives on 1 in 3 and 1 in 2.5, both fore and aft with engine stopped, engine slow running and running at 2000 r.p.m. (b) Under same Gradient conditions as (a) observe effect on carburation. Range of mixture adjustment should be tested to see if it is sufficient to overcome the effect of the gradient on the mixture. Observations should also be made on the flooding of the carburetter with the engine stopped, and running for decending gradients. (c) Under same conditions as (a) observe effect of water system both for steam pocketing at the forward end of cylinder head when climbing and for water spilling when decending. (6) Usual routine work which is done to an engine in a chassis such as grind valves, inspect cylinder bores, etc (possibly this item would not be considered an extra expense, but would be included under our normal contract for supplying engines. (7) Bench run with tank silencer to compare with standard silencer on similar engine on unit test bed. (8) Observe if operation and ventilation of oil tank satisfactory, and that no oil frothing occurs. Run engine for ten minutes 2000 r.p.m. with tank level, and tank tilted sideways in either direction on a gradient of 1 in 5. We think the foregoing will cover our requirements as regards ensuring that the installation is satisfactory coupled with observations to be carried out during the running in of the tank. E.{Mr Elliott - Chief Engineer} | ||