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).
Springing specifications for car 58-GN, including spring loads, damper settings, clearances, and overall weight.
| Identifier | ExFiles\Box 18\3\ Scan250 | |
| Date | 17th June 1931 | |
| Hd{Mr Hayward/Mr Huddy}/S.B. From Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey} 87960 Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey}&/MJ.17.6.31. SPRINGING 58-GN. (Sg{Arthur F. Sidgreaves - MD}'s. Car). 87410. The above car was fitted with the following springs in the Expl. Dept., in January 1931. :- Front Springs. F.78797. N.S. O.S. Loaded Lbs. 1108. 1120. Loaded Camber. Flat. Flat. Initial Camber. 4.5" 4.5" Rear Springs. F.79449. N.S. O.S. Loaded lbs. 1346. 1368. Loaded Camber. Flat. Flat. Initial Camber. 10.25" 10.25" The hydraulic damper loads were as follows:- Front. H.P. 100 lbs. L.P. 95 lbs. High pressure valve drilled .032" dia. leak. Rear. H.P. 60 lbs. L.P. 60 lbs. No drilled valves. The buffer clearances with four passengers (No luggage) were- Front. N.S. 1.8" O.S. 1.7" Rear. 3.75" 3.75" Car weight complete with all spares, petrol etc., :- Front. 22 cwt. 1 qr. 21 lbs. Rear. 28 cwt. 2 qr. 7 lbs. Total. 51 cwt. - qr. 7 lbs. Hs{Lord Ernest Hives - Chair}/A.J.Lidsey. | ||