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).
Data table showing values for variables 'N.' and 'v.' across several ranges.
| Identifier | ExFiles\Box 77\5\ scan0146 | |
| Date | 26th April 1917 guessed | |
| -7- N. v.{VIENNA} N. v.{VIENNA} 1580 11.94 2060 16.56 1590 12.06 2070 16.64 1600 12.16 2080 16.72 1610 12.27 2090 16.80 1620 12.38 2100 16.89 1630 12.49 2110 16.97 1640 12.59 2120 17.05 1650 12.70 2130 17.14 1660 12.80 2140 17.22 1670 12.90 2150 17.30 1680 13.01 2160 17.38 1690 13.12 2170 17.46 1700 13.22 2180 17.54 1710 13.32 2190 17.62 1720 13.42 2200 17.70 1730 13.52 2220 17.86 1740 13.62 2240 18.01 1750 13.72 2260 18.16 1760 13.82 2280 18.32 1770 13.92 2300 18.47 1780 14.02 2320 18.62 1790 14.12 2340 18.77 1800 14.21 2360 18.90 1810 14.31 2380 19.06 1820 14.40 2400 19.21 1830 14.50 2420 19.35 1840 14.59 2440 19.50 1850 14.69 2460 19.64 1860 14.78 2480 19.78 1870 14.87 2500 19.90 1880 14.97 1890 15.06 1900 15.15 1910 15.24 1920 15.33 1930 15.42 1940 15.51 1950 15.60 1960 15.69 1970 15.78 1980 15.87 1990 15.96 2000 16.04 2010 16.13 2020 16.22 2030 16.30 2040 16.38 2050 16.47 | ||