Blueprint comparing two alternative design schemes for a dimensioned component.
| Identifier | ExFiles\Box 84\2\ scan0301 | |
| Date | 5th February 1935 guessed | |
| SCHEME ① .300 .100 .100 .900 .150 .125 .080 .275 .250 For other dimensions see GB 1079 7'000" radius. SCHEME ② .300 .100 .100 .100 .600 .900 .450 .150 .120 .275 .250 For other dimensions see GB 1079 7'000" radius. | ||
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).