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 parts on a 10,000 miles Bentley, showing increase and decrease in pounds and ounces.
| Identifier | ExFiles\Box 82\3\ scan0172 | |
| Date | 1st April 1935 | |
| To Sg.{Arthur F. Sidgreaves - MD} c. to Nor. c. to R.{Sir Henry Royce} c. to Hy.{Tom Haldenby - Plant Engineer} c. to Bh. 5-II-IV. Hs{Lord Ernest Hives - Chair}/FD{Frank Dodd - Bodies}/S/KW.E. 4.35. 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 | | | | 7 0 Prop. shaft damper | 12 12 | Deleted | | 12 12 Prop. Shaft | 29 0 | 26 0 | | 3 0 Exhaust System | 66 5 | 51 12 | | 14 4 Petrol Tank | 46 0 | 37 6 | | 8 10 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 Dashboard in Magnesium | 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 | 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 | ||