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).
Comparative table of road wheel horsepower for Hispano and EAC engines at various RPMs.
| Identifier | WestWitteringFiles\L\Jan1924-March1924\ Scan82 | |
| Date | 2nd February 1924 guessed | |
| contd:- -2- Comparative road wheel H.P. of Hispano and EAC. REVS. HISPANO. EAC. LOW COMP: 500 18.7 23.5 750 27.9 35.0 1000 36.7 46.2 1250 44.4 56.3 1500 52.9 66.8 1750 59.5 73.3 Piston seized. Hs.{Lord Ernest Hives - Chair} | ||