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).
Cross-sectional blueprint of a V-type engine with dimensional measurements.
| Identifier | ExFiles\Box 144\4\ scan0159 | |
| Date | 17th November 1940 guessed | |
| 30.250, 5.000 DIA, 22.500, (6 7/16), 13.750, (2 3/16), 23.375, 18.250 | ||