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).
Findings on the performance of a radiator, engine guards, and steering systems.
| Identifier | ExFiles\Box 71\4\ scan0055 | |
| Date | 11th March 1925 | |
| R.R. 493a (50m) (D.B. 175 25-9-24) J.H.D. -2- EXPERIMENTAL REPORT. Expl. No. REF.HS{Lord Ernest Hives - Chair}5/LG11.3.25. average 1 1/4 galls. of water were lost in 250 miles. The temperature at no time exceeded 80°C. It has been found that the radiator inlet on 'V' series is different to the inlet we have used on the 40/50 for a number years. On 'V' series radiator the inlet goes straight into the top tank. On the standard 40/50, there is an extension into the inlet and slots which lead the water downwards and prevents it splashing out of the overflow pipes. This is now being carried out on 'V' series. (4) Radiator shutters. These jammed on the road owing to mud and grit accumulating on the plate holding the lower bearing for the shutters. The shutters have been made.125" clear of the bottom plate to prevent this re-occurring. (5) Engine guards. These were found to be ineffective. A considerable amount of mud and water was splashed over the engine and into the gearbox undershield. E.{Mr Elliott - Chief Engineer} has now supplied us with a fresh design, and the first set is practically complete. (6) Steering. Under the conditions they run in France, there has been no complaint of the steering except that the pendulum lever was found to be slightly loose and the two clamping bolts fixing the steering in the bracket were slightly loose. These were tightened up and are being checked. We shall be testing the steering with bolted arms contd :- | ||