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).
Adjustment of road spring ratings for cars intended for export markets with rougher roads.
Identifier | WestWitteringFiles\I\October1922\ Scan57 | |
Date | 26th October 1922 | |
R - ROAD SPRING RATINGS (HIGHER) ORIGINAL FOR ABROAD 5% or 10%? TO H.J. FROM R.{Sir Henry Royce} FEARS R1/26.10.22. c. to WOH. c. to HY.{Tom Haldenby - Plant Engineer} c. to HS.{Lord Ernest Hives - Chair} ✓ c. to EH. 'SPOILING THE RIDE' RE. SPRINGS FOR ABROAD. X2628 Y3461 Referring to your BJ16/H26922, if my memory is right we generally spring our cars for less than the maximum weight, that is to say when the car is fully loaded it is down at the back below the normal position, but owing to the ample clearance we allow on the rear bump in England this causes no trouble. When however we are dealing with extremely rough roads we may find that the car strikes the buffers too frequently. I quite agree with springing the cars for nearer their maximum weight, possibly 10% is not too much but I would like the Works to consider 5%, especially now that we are fitting shock dampers to the rear of the car. Naturally the shock dampers would do very much towards avoiding the trouble without altering the strength of the springs and this should be considered when settling on the amount. I think it would be quite feasible to try 5% with the shock absorbers for the time being. I very much fear going too far as it spoils the riding of the car. R.{Sir Henry Royce} RECEIVED Hs{Lord Ernest Hives - Chair} OCT 30 1922 | ||