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).
Specifications for springing, damper loads, unladen car weight, and buffer clearances.
| Identifier | ExFiles\Box 107\1\ scan0055 | |
| Date | 7th March 1931 | |
| To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey} X7960 Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey}2/KT.7.3.31. G.L.R.59 Springing. Front Springs. Piece No. F.57498. N.S. O.S. Loaded lbs. 680 680 Loaded camber. 1" Pos. 1" Pos. Initial camber. 5.00" 5.00" Rear Springs. Loaded lbs. 1030 1008 Loaded camber. .5" Neg. .5" Neg. Initial camber. 8.625" 8.625" Damper Loads. Front. - 115/90 lbs. H.P. valve drilled .065" dia. Rear. - 115/90 lbs. H.P. valve drilled .055" dia. Car Weight. (Unladen) One spare wheel at rear. Front. 15 cwt 1 qr. 14 lbs. Rear. 19 cwt 2 qr. 0 lbs. Total. 34 cwt 3 qr. 21 lbs. Buffer Clearances. N.S. O.S. No Passengers. Front. 2.25" 2.4" Rear. 5.4" 5.2" 4 Passengers. Front. 2.05" 2.0" Rear. 4.15" 3.9" | ||