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).
Graph of motoring loss curves comparing Rudge and P.V.G. engines.
| Identifier | ExFiles\Box 133\1\ scan0021 | |
| Date | 19th March 1932 | |
| C 17 500 cc RUDGE UNIT FIG. XV MOTORING LOSS CURVES (L.M.E.P.) RUDGE AND P.V.G. BOTH CONSIDERED AS 5.0" x 5.5" ENGINES FOR COMPARITIVE PURPOSES L.M.E.P. (LBS/IN²) I.H.P. PISTON SPEED (FT/MIN) PVG (L.M.E.P.) PVG (I.H.P.) RUDGE (L.M.E.P.) RUDGE (I.H.P.) JP 19.3.32 | ||