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).
List of experimental and standardized parts with their evaluation and status.
| Identifier | ExFiles\Box 154a\3\ scan0282 | |
| Date | 16th August 1937 | |
| -6- Leyland S.1633 K.{Mr Kilner} | Special red rubber hose for water connections. | Sheet issued. Rm{William Robotham - Chief Engineer}/Std. | Thermometer with flexible capillary for sound insulation. | Sheet issued. The following parts not standardised but provided useful data and experience:- E.86615 | Crankshaft with extra and opp. hole in each journal. | Showed no merit to justify standardising. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | Valve springs produced in low carbon wire in U.S.A. | Satisfactory. Samples for test only. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | Deletion of hydraulic tappets. | Experiment to gain experience for final scheme on 32-EX. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} | Burgess Air Filter Element | Further mileage on this type required on 32-EX. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} | Deletion of Air Silencer Support Stays in connection with 4 port head. | Rivetted flange worked loose. Modified scheme running on 32-EX. NS.{Norman Scott}4738. 4747. 4819. | Experimental scheme for deletion of Oilite Bush on clutch shaft. | Run to gain experience. Design scheme on 32-EX. Rm{William Robotham - Chief Engineer}/NRC.{N. R. Chandler} | VM.20 Clutch Facings. | Not suitable for standardisation. LeG.5406. | M/S Engine Feet. | Cracks developed. Modification has been made for fitting to 32-EX | ||