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 multiple component failures during a running test, with analysis and proposed modifications.
| Identifier | ExFiles\Box 75\3\ scan0280 | |
| Date | 27th November 1913 guessed | |
| Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}3/L271113. Sheet. 4 After running. hrs. mins. 13 - 43. Off side weld crack spreading. 13 - 54. Near side spring broke, front end. F812 14 - 21. Near side spring broke, front end. F812 Near side spring clips broke. K5400 14 - 51. Near side spring broke, front end. F812 15 - 0. Test stopped. After stopping test we fitted a 2700 type front axle complete with Dunlop wire wheels and ran on with a view to testing the axle, pivots, and wheels. After running 15 minutes the near side dumb iron broke across the forward horizontal bolt hole and lifted up the top flange tearing away the weld and breaking the metal in the other top corner, the fracture running inward toward the bolt hole in the top flange. I propose to now fix the front axle on to the frame with tubular diagonal stays (brazed joints) which has already done 15 hours test and to run the test on this. It is somewhat disturbing to see the pivots which we are using on 2700/2800 break in so short a time. The first one lasted 6 hrs 3 mins, and the second one 7 hrs 25 mins. I will report if another one breaks. This time we shall be using wire wheels and these may absorb some shock. An experimental pivot F.3783 is now running on the reversal test rig. This is slightly thicker in the root of | ||