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).
Graphs of Bowden Cable efficiency against angle at various loads.
| Identifier | ExFiles\Box 84\2\ scan0243 | |
| Date | 21th December 1934 guessed | |
| PERCENTAGE EFFICIENCY 500 LBS 300 LBS DEGREES 50 LBS 25 LBS BOWDEN CABLE GRAPHS OF EFFICIENCY AGAINST ANGLE AT VARIOUS LOADS ANGLE - DEGREES | ||