Report page detailing tests on plunger position and a sketch of an air silencer and de-tuning chamber.
| Identifier | ExFiles\Box 13\4\ 04-page065 | |
| Date | 14th October 1932 guessed | |
| -2- We then carried out a series of tests on the road and found that the best position of plunger 'C' in chamber 'B' was 3.5" to 4" from No.3 aperture in A. {Mr Adams} This position was then confirmed by running 20-EX on the dynamometer. Our next job was to apply this principle and same capacity of tuning chamber to our semi expanding carb. in a more practical and productive manner, and an air silencer similar to the sketch below was made. [Sketch annotations] 8" 1 1/8" RING OF SMITHS AIR CLEANER WIRE. 42 AIR SLOTS. 3" 10" 5" 12 HOLES .5" De-Tuning CHAMBER. TO CARB | ||
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).