Proposed modifications for a car, including radiator depth, piston types, and crankshaft stiffness.
| Identifier | WestWitteringFiles\T\March1929-December1929\ Scan129 | |
| Date | 25th May 1929 guessed | |
| (2) 2 for, and 1 against, and the vibrations 4 1/2 per revolution. (3) To improve the appearance of this 'Japan(Experimental Engine)' car DA. {Bernard Day - Chassis Design} is just completing a drawing of the radiator 2 1/2" deeper, but it is possible that we may have to wait some time before we can get this improvement. I am in hopes that the next car of this type will have the lighter 4 ring pistons. I am rather anxious to get the car with the all-weather body as quickly as possible, providing we are able to cure these two faults. Later we shall send you the new crankchamber with a still further increase in the stiffness of the crankshaft, and a new damper flywheel, which we hope will cause no anxiety to adjust, as we shall make it variable with speed. I suggest fitting 'China(Experimental Engine)' pistons - LeC. 2698. - with .1" liners under cylinders, .050" off the top of the pistons, and 3.2" dia. - i.e. very thin and light. R. {Sir Henry Royce} | ||
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).