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).
Comparison table of various cars, listing axle ratios, tyre sizes, and performance data at 60MPH.
| Identifier | ExFiles\Box 128\3\ scan0124 | |
| Date | 22th October 1943 | |
| Ev{Ivan Evernden - coachwork}/JD.{J. Draper - Frames}7/JH.22.10.43. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |---|---|---|---|---|---|---|---|---|---| | Carb. | Axle Ratio | Tyre size. | Measured. | Static. (Chart) | At 60MPH Chart | At 60MPH Est. | Measured | Estimated | Proposed. | | 12.B.V. | 4.1 to 1. | 6.500 x 16. | 88.000 | 86.500 | 87.500 | 88.000 | 2,950. | 2,950 | 2,950. | | Austin 10 | 5.3 to 1. | 5.250 x 16 | 80.000 | 78.750 | 79.750 | 80.600 | 4,200 | 4,240 | 4,220 | | Austin Myth. | 5.5 to 1. | 5.250 x 16 | 80.250 | 78.750 | 79.750 | 80.600 | 4,340 | 4,320 | 4,330 | | Austin 8 | 5.5 to 1. | 4.750 x 17 | 83.500 | 82.000 | 82.500 | 83.250 | 4,160 | 4,190 | 4,175 | | Vauxhall 10. | 5.00 to 1. | 5.00 x 16. | 78.250 | 78.000 | 78.875 | 79.500 | 4,450 | 4,380 | 4,415 | | Lancia. | 4.1 to 1. | 5.250 x 16 | 79.750 | 78.750 | 79.750 | 80.600 | 3,260 | 3,220 | 3,240 | | Studebaker | 4.6 to 1. | 5.500 x 16 | 82.500 | 81.000 | 81.500 | 82.250 | 3540 | 3542 | 3540 | | 3.B.50. | 11/41 | 7.000 x 16 | 89.500 | 89.000 | 90.000 | 91.000 | 2,640 | 2,600 | 2,620 | | B.22.AW. | 10/43 | 6.500 x 16 | 86.625 | 86.500 | 87.500 | 88.000 | 3,140 | 3,090 | 3,120 | | 8.B.V. | 9/37 | 6.500MX{John H Maddocks - Chief Proving Officer} 16 | 87.750 | 86.500 | 87.500 | 88.000 | 2,970 | 2,960 | 2,965 | | 11.B.V. | 11/41 | 6.500 x 16 | - | 86.500 | 87.500 | 88.000 | - | 2,680 | 2,680 | | 30.G.VII. | 11/41 | 7.000 x 16 | 90.000 | 89.000 | 90.000 | 91.000 | 2,620 | 2,600 | 2,610 | (11.B.V. measured rolling circle not obtainable) | ||