Blueprint detailing the body bottom-side and torsion-axis assembly.
| Identifier | ExFiles\Box 111\1\ scan0099 | |
| Date | 1st June 1938 | |
| BODY BOTTOM-SIDE 1-B-50. TORSION-AXIS 1/6/38 | ||
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).