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).
Update on B.V. engine test bed work and the Bentley V. Programme production schedule.
| Identifier | ExFiles\Box 161a\3\ scan0009 | |
| Date | 6th January 1939 | |
| -8- BY.1/G.6.1.39. B.V. ENGINE TEST BED WORK. cont'd.{John DeLooze - Company Secretary} Bentley and the 25/30, we ought to have two valve springs as a safety factor. We have also been checking over camshaft oscillations to see if they have any bearing on valve spring failure. Tests have been carried out using Metalastik flexible coupling and light camwheel with a view to helping production to obtain quiet timing gears. An investigation has been made into the possibility of improving intermediate bearing life by a re-arrangement of the balance weights, and it appears that as a result of this a small improvement may be possible. We have completed 400 hours general development running on B.V. engine, and when stripped down the bearings were in an exceedingly good condition. These bearings are of the type which are at present running in the car in France. BENTLEY V.{VIENNA} PROGRAMME. (a). 7-B-V, 8-B-V and 9.B.V. are completed and on the road. (b). 10-B-V.{VIENNA} the body is being framed up and will be ready for the chassis on January 20th. The chassis is ready to despatch, but will not be useful to Park Wards before the date given. (c). 11-B-V.{VIENNA} This chassis is arranged to take the 8 cylinder engine. The body was ordered on Decr. 23rd, and complete specification handed to Park Wards yesterday. Body will be available second week in March. (d). 12-B-V.{VIENNA} Coupe. This was instructed December 23rd and complete specification was handed to Park Wards on January 5th. Body will be completed third week in March. The chassis will be available for the date at which Park Wards can usefully employ it. | ||