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).
Analysis of weight changes for 10,000 miles Bentley parts, detailing increases and decreases in lbs and ozs.
| Identifier | ExFiles\Box 88\3\ scan0149 | |
| Date | 2nd April 1935 | |
| To Sg.{Arthur F. Sidgreaves - MD} c. to Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} c. to By.{R.W. Bailey - Chief Engineer} c. to Bh. Hs{Lord Ernest Hives - Chair}/PD.S/KW.2.4.35. 5-B-IV. Herewith analysis of weights for 10,000 miles Bentley showing increase and decrease in lbs. & ozs. Part. | Std. Weight | New Weight | Increase | Decrease | lbs. ozs | lbs. ozs. | lbs. ozs | lbs. ozs --- | --- | --- | --- | --- Tool kit & Jack | 12 12 | Deleted | 7 0 | 12 12 Prop. Shaft damper | 29 0 | 26 0 | | 3 0 Pr.{Percy H. Rose} Shaft | 66 5 | 51 12 | | 14 4 Exhaust System | 46 0 | 37 6 | | 8 10 Petrol Tank | | | | Petrol System, saving wt. | | | | 3 0 Front Road Springs | 38 0 | 26 8 | | 12 8 Rear Road Springs | 78 0 | 57 8 | | 20 8 Steering, Peregrine | 41 0 | 31 0 | | 10 0 Torque Reaction Dampers | 4 8 | 1 2 | | 3 6 Servo parts | 14 0 | 12 6 | | 1 10 Dr'board in Magnesium X | 28 7 | 19 0 | | 9 7 Carb., Air Silencer & Bend in Magnesium | 8 8 | 6 2 | | 2 6 Sheet metal floorboards, felt covered. | 18 8 | 10 8 | | 8 0 Gearbox & Clutch Fit in Magnesium X | 38 4 | 25 9 | | 12 10 Narrow Pin Crankshaft. Con. Rods. | 10 3 | 8 9 | | 1 10 Cyl.Head - High Comp. | 72 12 | 71 12 | | 1 0 Cross Member, Rad.bracket, engine support. | 32 11 | 27 9 | | 5 2 | | | Total | 136 13 | ||