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).
Two graphs showing velocity (fps) and distance (ft) versus time (secs) for Special Test No. 2.
| Identifier | ExFiles\Box 85\1\ scan0396 | |
| Date | 9th February 1938 | |
| V.{VIENNA} fps 40 30 20 10 0 SECS S ft. 50 0 FIG 7 SPEC TEST N° 2. RR.C° Driver 1118/5 D.R.C° 9.2.38 2 | ||