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 of corrected aluminium component weights for the Phantom III.
| Identifier | ExFiles\Box 160\5\ scan0343 | |
| Date | 20th August 1941 guessed | |
| The following are the corrected figures for Phantom III aluminium weights, the bracketed figures being the one submitted by you. PISTONS & GUDGEON PINS. (12 lbs) 14 lbs 4ozs LOWER HALF ETC (23 lbs) 25 lbs WHEELCASE (5 lbs) 6 lbs WATER PUMP (5 lbs) 6 lbs CYL HEADS & ROCKER COVERS (60 lbs) (70 lbs). CYL'S + TOP HALF C'CASE. (140 lbs) 140 lbs. CARB'S + AIR SILENCER. (5 lbs) 7 lbs P.T.O. | ||