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).
Test and mileage log for chassis 46-PK, detailing performance remarks and issues.
| Identifier | ExFiles\Box 69\3\ scan0188 | |
| Date | 23th March 1925 | |
| CHASSIS 46-PK. SHEET 1. Fitted with engine No. 1-EAC-11 on 22.1.24. Fitted with engine No. 5-EAC-11 on 23.3.25. DATE. | TESTED BY.{R.W. Bailey - Chief Engineer} | Miles run. | Total miles. | REMARKS. 22.1.24 2.2.24 | Expl: | 406 | 406 | 2.2.24 to 16.2.24 | PN.{Mr Northey} | 1251 | 1657 | CJ8/E5.2.24 CJ7/E7.2.24 CJ6/E12.2.24. CJ1/E16.2.24 CJ1/E20.2.24. Max: speed only 75 m.p.h. Braking generally bad - steering shocks very bad - steering stiff at slow speeds - servo wearing badly - reverse seized when trying to get car out of ditch. Lauro reports 2.2.24 to 13.2.24. 16.2.24 to 21.2.24 | S.H.Lauro. | 100 | 1757 | Carburation erratic at high speed - due to dirty air valve. 21.2.24 | FHR. PN.{Mr Northey} | 88 | 1845 | Clutch too heavy (interia) otherwise O.K. Autovac worked well - acceleration good at 55 m.p.h. RL/M21.2.24. 22.2.24 to 13.3.24 | PN.{Mr Northey} and Lauro. | 2154 | 3999 | Slow running unsatisfactory - ignition control jammed - brakes jaggered occasionally. 13.3.24 to 16.4.24 | Expl: | 472 | 4471 | 17.4.24 22.4.24 | E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} | 253 | 4724 | 2.5.24 5.5.24 | EP.{G. Eric Platford - Chief Quality Engineer} | 293 | 5017 | Brakes good - steering poor - springing too hard - engine noisy and poor slow running - carburation weak on pick-up, otherwise strong contd :- | ||