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 detailing the non-interchangeability of parts for B.V. & B.50 models.
| Identifier | ExFiles\Box 111\2\ scan0412 | |
| Date | 28th February 1939 | |
| 800 and 400. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}2/MH.{M. Huckerby}28.2.39. NON-INTERCHANGEABILITY OF PARTS B.V. & B.50. (1) Wheelbase. This is inevitable and apart from the frame affects (1) Prop. Shaft. (2) Silencers. (3) Brake Rods. (4) Bijur piping & wiring. (2) Front Track This affects (1) Yokes. 56.26 or 58.5 (2) Top triangle lever. (3) Cross steering tubes. (4) Brake rods. (3) Rear Track This affects (1) Axle Tubes. (2) Half Shafts. (4) Half Shaft Size. This affects (1) Axle Shafts. (2) Wheel bearings. (3) Bearing Housings. (4) Belleville washer. (5) Collar. (6) Bearing distance piece. (5) Rear Spring This affects (1) Springs. Length & Width. (2) Front anchorage. (3) Shackles. (4) Spring bracket. (5) Frame drilling. (6) Frontal (1) Rad. Shell. Appearance. (2) Matrix. (3) " straps. (4) " carrier brackets. (5) Lamp brkts. (6) Shutters. (7) Steam pipe. (8) Bonnet side plates. | ||