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).
Test report detailing the failure times of parts C446 and C447, and the weight of lever F3727.
| Identifier | ExFiles\Box 80\1\ scan0126 | |
| Date | 6th March 1914 guessed | |
| Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}21/L2314. contd. C446 Off side. No.1 broke in 6 hrs 10 mins. No.2 " " 1 " 55 " No.3 " " 3 " 25 " No.4 still running after 15 hrs 19 mins. C447 Near side. No. 1 broke after 22hrs 24 mins No.2 still running 6 hrs 25 mins. The weight of the lever F3727 as tested is 2 lbs which is the same as the standard lever C446. | ||