Log of readings taken during a one-hour non-stop test, showing speed in K.P.H.
| Identifier | ExFiles\Box 160\3\ scan0129 | |
| Date | 27th January 1939 guessed | |
| START OF ONE HOUR NON STOP. 1 53.4/5' 170.514 K.P.H. 2 54.1/5 169.255 3 53.2/5 171.791 4 53.4/5 170.514 5 53.4/5 170.514 6 53.4/5 170.514 7 53.3/5 171.150 8 53. 173.088 9 53. 173.088 10 52.4/5 173.743 11 53.1/5 172.437 12 53.1/5 172.437 13 54.1/5 169.255 14 53.5/5 171.150 15 53.4/5 170.514 16 53.4/5 170.514 17 53.5/5 171.150 18 53.2/5 171.791 19 53.1/5 172.437 20 53.4/5 170.514 21 53.1/5 172.437 22 53.4/5 170.514 23 53.5/5 171.150 24 53.4/5 170.514 25 53.1/5 172.437 26 53.2/5 171.791 27 53.2/5 171.791 28 53. 173.088 29 53.2/5 171.791 30 53.2/5 171.791 31 52.4/5 173.743 32 53.1/5 172.437 33 53.2/5 171.791 34 54. 169.882 35 53.4/5 170.514 36 53.3/5 171.150 37 54. 169.882 38 53.3/5 171.150 39 54. 169.882 40 53.4/5 170.514 41 53.4/5 170.514 42 53.3/5 171.150 43 54. 169.882 44 54. 169.882 45 53.4/5 170.514 46 54.3/5 168.015 47 54.1/5 169.225 48 53.2/5 171.791 49 53.1/5 172.437 50 54. 169.882 51 53.3/5 171.150 52 54. 169.882 53 53.3/5 171.150 54 53.1/5 172.437 | ||
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).