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 non-standardised parts with descriptions and notes on their current status and required actions.
| Identifier | ExFiles\Box 82\5\ scan0173 | |
| Date | 12th June 1937 guessed | |
| J.S.B.14. -4- Parts not standardised, data obtained (continued) Ref. Description. Notes. MS.4900 Modification to change speed lever. Not standardised on account of trouble with same scheme on B.27.AM. Rm.{William Robotham - Chief Engineer}301 Modification for lubrication of propeller shaft sliding joint with oil instead of grease. Experience only required. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Larger studs holding pinion housing in Axle. Not now considered necessary in Service. Rm{William Robotham - Chief Engineer}/JBD.{John B. Dixon - Fuel Systems} Deletion of petrol pump fuses. Experience required. Rm{William Robotham - Chief Engineer}/JBD.{John B. Dixon - Fuel Systems} Special black sheet stoneguard for petrol tank. Experience required for subsequent use with lightened tank. Rm{William Robotham - Chief Engineer}/Wst. A.C.revolution counter. Further mileage required. will be fitted to next 15,000 miles Bentley. Rm{William Robotham - Chief Engineer}/Wst. Petrol pump switch. Discarded in favour of other switch now standardised. Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} New type Lucas windscreen wiper. Further mileage required. Rm{William Robotham - Chief Engineer}/Std. Thermostatic control of water flow and fixed radiator shutters. Further experience required and development in progress. Rm{William Robotham - Chief Engineer}/Std. Various special fans. Experience required. | ||