Comparison table of engine performance data (HP and T) for different configurations at 500, 1000, and 1500 RPM.
| Identifier | ExFiles\Box 78\3\ scan0041 | |
| Date | 17th August 1912 | |
| Conditions X1251 Revs. Revs: 500 Configuration: RR. Standard HP.: 19.6 T.: 2.18 Configuration: Daimler HP.: 15.6 T.: 3.10 Revs: 1000 Configuration: RR. HP.: 37 T.: 1.40 Configuration: Daimler HP.: 31.4 T.: 2.20 Revs: 1500 Configuration: RR. HP.: 47.5 T.: 1.21 Configuration: Daimler HP.: 39.1 T.: 1.42 Row 2: Radiator & fan & silencer off Revs: 500 Configuration: RR. Standard HP.: 19.2 T.: 2.22 Configuration: Daimler HP.: 17.5 T.: 2.51 Revs: 1000 Configuration: RR. HP.: 38.1 T.: 1.40 Configuration: Daimler HP.: 34.2 T.: 2.12 Revs: 1500 Configuration: RR. HP.: 53.1 T.: 1.18 Configuration: Daimler HP.: 43.6 T.: 1.42 Row 3: Radiator & fan on silencer off Revs: 500 Configuration: RR. Standard HP.: 19.2 T.: 5.10 Configuration: Daimler HP.: 17.5 T.: 4.39 Revs: 1000 Configuration: RR. HP.: 38.1 T.: 3.9 Configuration: Daimler HP.: 34.2 T.: 4.25 Revs: 1500 Configuration: RR. HP.: 53.1 T.: 2.15 Configuration: Daimler HP.: 43.6 T.: 3.0 Row 4: Complete Car Revs: 500 Configuration: RR. Standard HP.: 19.6 T.: 4.34 Configuration: Daimler HP.: 15.6 T.: 4.10 Revs: 1000 Configuration: RR. HP.: 37 T.: 3.32 Configuration: Daimler HP.: 31.4 T.: 3.22 Revs: 1500 Configuration: RR. HP.: 47.5 T.: 2.25 Configuration: Daimler HP.: 39.1 T.: 2.55 Row 5: Marine Engine 4x6 RR, 64lbs compression, silencer off, Bevel axel. Radiator off Revs: 500 Configuration: RR. Standard HP.: 19.6 T.: 2.37 Revs: 1000 Configuration: RR. HP.: 40. T.: 1.34 Revs: 1500 Configuration: RR. HP.: 52.9 T.: 1.15 Initials: E H A | ||
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).