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).
Performance comparison graph of the 25/30 HP engine against American engines (Buick and Terraplane).
Identifier | ExFiles\Box 134\2\ scan0114 | |
Date | 1st January 1937 | |
25/30 COMPARED WITH AMERICAN ENGINES Top Graph: COMPARISON OF 25/30 H.P. BUICK AND TERRAPLANE. OPEN EXHAUST. Legend: - 25/30 - Buick - TERRAPLANE Bottom Graph: COMPARISON OF 25/30 H.P. AND BUICK COMPLETE WITH EXHAUST SYSTEM. Legend: - 25/30 - Buick Y-Axis Label: B.M.E.P. Y-Axis Values: 110, 100, 90, 80, 70 X-Axis Values: 500, 1,000, 1,500, 2,000, 2,500, 3,000, 3,500, 4,000, 4,500 Annotations/Stamps: - S (circled) - 7D (circled) - 537 | ||