Table of performance particulars for chassis starters on 40/50 and Goshawk models.
| Identifier | ExFiles\Box 61b\3\ scan0087 | |
| Date | 17th December 1920 | |
| x543 86027 17.12.20. X.2642. X.3082. X.543.. X.4298. CHASSIS STARTER PARTICULARS. TABLE DATA: HEADER: 40/50., GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)). SUB-HEADER: 45a., 45a.sp. {Mr Spinney} , 45b. ROW 1: ENGINE REVS. VALUES: 40, 61, 42, 60 ROW 2: RATIO. VALUES: 23.3, 23.3, 23.3, 14.4 ROW 3: MOTOR REVS. VALUES: 930, 1420, 980, 864 ROW 4: MOTOR TORQUE. VALUES: 1175, 1175, 1175, 400 ROW 5: AMPERES. VALUES: 118, 134, 121, 64.3 ROW 6: VOLTS. VALUES: 9.95, 9.9, 9.5, 9.7 ROW 7: E.H.P. VALUES: 1.57, 1.78, 1.54, .836 ROW 8: B.H.P. VALUES: .82, 1.25, .863, .418 ROW 9: EFFICIENCY. VALUES: .52, .70, .56, .5 EFC. {E. Fowler Clarke - Electrical Engineer} (Footer text, upside down) R.R. 238A (100 T) (S.H. 798 10-12-20) G 2847 | ||
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).