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).
Complaints of rear suspension issues on the Phantom II model.
| Identifier | ExFiles\Box 47\2\ Scan246 | |
| Date | 1st April 1930 | |
| By.{R.W. Bailey - Chief Engineer} Hs.{Lord Ernest Hives - Chair} EP.{G. Eric Platford - Chief Quality Engineer} Worr X4117. X4117 X7410. Hm{Capt. W. Hallam - Head Repairs}/SB{Mr Bull/Mr Bannister}9/KW1.4.30. Phantom II Springing. We are getting rather a lot of complaints of Phantom II cars bumping on the rear buffers, and although some of these are definitely attributable to either excessive body weight or passenger load, there does appear to be a tendency to spring these cars too lightly. On Phantom I cars we have found it possible to run as low as 3¼" buffer clearance without bumping, but with the lower rating springs on Phantom II cars, bumping on the buffers will almost certainly occur if run at the same buffer clearance. The list attached hereto shows those cars on which it has been found necessary to fit stronger rear springs during the past few weeks. A peculiar feature of these springing complaints is that the buffer clearances measured at the Coachbuilders before delivery to customers are rarely confirmed by our own measurements after the cars have been in service, and the gross weight of the car is usually 1 cwt. or so more than that given on the Final Report. We also attach hereto springing chart R.2146, the results obtained from which are consistent with measured buffer clearances. The cars mentioned on the attached list represent about 5% of the cars actually in customers' hands. Hm.{Capt. W. Hallam - Head Repairs} | ||