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 technical discussion points and test results for Wraith and Bentley models.
| Identifier | ExFiles\Box 161a\2\ scan0190 | |
| Date | 19th March 1938 | |
| - 2 - WRAITH 3. Engine Vibrations Result of comparative tests between standard 25/30 engine and Wraith engine to determine amount of oscillation taking place on the nose of the crankshaft. 4. Connecting Rod Bearings ? final decision yet reached. 5. Modification to steering pivots. 6. Overdrive Gearbox for Wraith ? whether too early yet for the B.III box to have been tried on a Wraith chassis as recommended at the meeting of 1st March. BENTLEY 1. 6-B-IV - low speed wobble ? result of Experimental Dept's investigations. 2. B.III General information on this model as the result of tests so far carried out. 3. Disc Wheels Inspite of Works having turned these down S. still anxious to pursue the matter with hope of their introduction in spite of difficulties so far encountered. 4. Weight of Cars Ref. Rm{William Robotham - Chief Engineer}9/R19.3.38 and enclosed designs, weights quoted in the "Motor" probably not very reliable, as they are, we believe, supplied by the manufacturers and not | ||