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).
Chassis spring settings and recommending modifications.
| Identifier | ExFiles\Box 16\7\ Scan204 | |
| Date | 21th November 1929 guessed | |
| -2- Chassis 25-WJ:- O/S Rear: 4" N/S Rear: 4" Chassis 34-WJ:- O/S Rear: 4 1/4" N/S Rear: 4 1/16" Chassis 7-WJ:- O/S Rear 3 11/16" N/S Rear: 3 5/8" Therefore, according to your Standards at Works, 25-WJ and 7-WJ are normal, whilst 34-WJ is somewhat heavily sprung, and I would recommend that we fit to this chassis 100 lbs. lighter springs, if you agree. I feel this question of springing is one which should receive immediate attention, and be overcome with the minimum delay, as it is advisable not to let the chassis get into the hands of customers in their present condition. The springing of a car is of the utmost importance in these days from a sales point of view, and it is better not to allow any room for adverse criticism to creep into the public opinion of our new chassis. Ps. P.S. I suggest external temperature should be considered as affecting the viscosity of the liquid used in our S.A. BS{A J. Barnes - Assistant Manager} | ||