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).
Comparison of weights for different Phantom front axles.
| Identifier | ExFiles\Box 71\2\ scan0159 | |
| Date | 22th September 1926 | |
| X68270 To Hs{Lord Ernest Hives - Chair} from RHC.{R. H. Coverley - Production Engineer} C-GWH.{George W. Hancock - Head Chateauroux} RHC{R. H. Coverley - Production Engineer}4/BE. 22.9.26. RE PHANTOM FRONT AXLES We give below comparative weights of the above Front Axles:- Standard Front Axle to Arrgt.Drg. G.72403(less Road Wheels & Tyres) 225.00 lbs. Lightened Front Axle using Axle Forging G.74268(less Road Wheels and Tyres) 183.75 lbs. 41.25 lbs. Axle only 42.5 lbs. Latest Lightened Front Axle complete to Arrgt. Drg. G.74294 using Axle G.74920. 189.25 lbs. Axle only 44.25 lbs. Difference between present standard axle and latest lightened axle - 35.75 lbs. Difference in weight of light axles - 1.75 lbs increase. RHC{R. H. Coverley - Production Engineer} [Signature] | ||