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).
Performance and acceleration figures comparing two different carburettor types.
| Identifier | ExFiles\Box 102\1\ scan0151 | |
| Date | 13th February 1934 | |
| To Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} C. to Hs{Lord Ernest Hives - Chair}/GTS. 13.2.34. 19-G-IV - PERFORMANCE & ACCELERATION FIGURES. Axle 11 x 50 Tyres 6" x 19" Total Weight Tons cwt. qr. lb. 1 17 1 7 Standard Carburettor New Type Carburettor. Stanton Hill 24.5 seconds; 30 MPH. 23.5 seconds; 31 MPH. Ticknall " 62.6 " ; 58 " 62 " ; 61 " Pistern " 64.8 " ; 38 " 64 " ; 39 " Shardlow Straight. Average Both Ways. 10-20 M.P.H. 4.22 seconds 4.22 seconds 10-30 " 8.53 " 8.53 " 10-40 " 13.8 " 13.51 " 10-50 " 20.21 " 19.13 " 10-60 " 28.56 " 26.35 " Max. Speed. 71 M.P.H. MEAN. 75 M.P.H. MEAN. Petrol Cons. 18.54 M.P.G./102 miles/40 MPH. 15.54 MPG/102 miles/40 MPH. Hs{Lord Ernest Hives - Chair}/G.Ratcliffe. | ||