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).
Cost comparison of a Bentley Common Gearbox versus a Rover Gearbox.
| Identifier | ExFiles\Box 148\5\ scan0345 | |
| Date | 11th June 1938 | |
| Hs{Lord Ernest Hives - Chair}/LS. 1260 also 1091 + 228 Rm{William Robotham - Chief Engineer} from RHC{R. H. Coverley - Production Engineer}/CAN. COPY. RHC{R. H. Coverley - Production Engineer}/CAN.2/LS.11.6.38. COMPARISON OF BENTLEY COMMON GEARBOX AND ROVERS GEARBOX. BENTLEY COMMON GEARBOX. MAT: £. S. D.{John DeLooze - Company Secretary} LABOUR. £. S. D.{John DeLooze - Company Secretary} Flywheel & Clutch 1. 1. 0 15. 8. Gearbox. 3. 18. 10. 3. 8. 8. Speedo Drive. 3. 5. 10. 9. 1st & 3rd. M.Shaft.2. 3. 11 3. 6. 3. Servo drive. 16. 6. 6. 9. 2nd. M.{Mr Moon / Mr Moore} Shaft. 10. 6. 1. 4. 4. Reverse Gear 1. 10. 5.10. Change gear. 12. 8. 19. 8. Servo Motor 1. 5. 6. 16.6. Final assembly. 1. 7. 3. £10. 14. 2. £13. 1. 8d. 200% Factory Chgs. 26. 3. 4. Mtls 10 14. 2. Factory cost. £49. 19. 2. Total number of pieces per gear box assembly } 819 Number of operations on Bentley common gear box} 1431 ROVER GEARBOX. MAT £. S. D.{John DeLooze - Company Secretary} LABOUR £. S. D.{John DeLooze - Company Secretary} Gearbox casing assembly. 12. 9. 5. 3½ 1st. and 3rd.Motion shaft. 2. 10. 6¾. 1. 12. 2. Reverse Wheel assembly. 2. 8½ 3. 0½ Change speed mech. 6. 0. 7. 3. Bell housing assembly 1. 5. 10½ 7 9¼ Selector shaft assembly 8. 3. 5. 11¼ Free wheel Hsg. assembly. 1. 15. 5½ 2. 2. 2½ Final assembly. 6. 10 £7. 1. 7¼ £5.11. 3¼d.{John DeLooze - Company Secretary} 10% contingency 14. 2 11 1½ £7. 15. 9¼ £6. 2. 5. 200% Chgs. 12 4 10 Matl: 7.15. 9 Factory cost. £26. 3. 0. Number of pieces per box for Rovers units } 327 Number of operations on Rovers gearbox } 412. RHC{R. H. Coverley - Production Engineer}/CAN. | ||