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).
Fitting a Y-4-BB unit to a car to examine the existing B-5 unit's Textolite gears and lead bronze bearings.
| Identifier | ExFiles\Box 88\2\ scan0102 | |
| Date | 11th May 1935 | |
| V260 To RHC.{R. H. Coverley - Production Engineer} HS{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}/7/EWM.11.5.35. Lead Bronze Bearings on Bn{W.O. Bentley / Mr Barrington}'s Car. We are arranging to fit Y-4-BB unit to Bn{W.O. Bentley / Mr Barrington}'s car, so that we can strip and examine B-5 unit which he has been running. This has Textolite gears which have now run a good mileage, and also lead bronze bearings which were fitted three months ago. HS{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||