Weight comparison table for wheel and hub components for the T.series Silver Ghost, New Phantom, and Hispano models.
| Identifier | ExFiles\Box 49\4\ Scan208 | |
| Date | 17th September 1925 | |
| R.R. 493A (50 M) (O.D. 21. 12-6-25) J.H.U. EXPERIMENTAL REPORT. -2- Expl. No. REF HS {Lord Ernest Hives - Chair} /L/17.9.25. DESCRIPTION. T.series. Silver Ghost(1907 40/50 historic RAC 15,000 miles trial). lbs.ozs. New Phantom(Codename for PHANTOM I). lbs.ozs. Hispano. lbs.ozs. HUB - SHELL ONLY { Dunlop - R.W. 8 4 11 5 10 9 11 5 9 2 HUB - complete. 16 11 17 2 13 0 14 9 WHEEL - without lock-nut and retaining ring. 40 3 35 14 32 0 WHEEL - locking device complete. 4 4 2 6 2 9 WHEEL - lock nut and retaining ring. 1 13 1 10 1 10 HS. {Lord Ernest Hives - Chair} | ||
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).