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).
Blueprint detailing a crankshaft failure, showing test results, running time, and views of the broken component.
| Identifier | ExFiles\Box 85\5\ scan0127 | |
| Date | 19th February 1937 | |
| UNIT. B19 CRANKSHAFT FAILURE EX1129 CRANKSHAFT EB1083 MODIFIED EB2687 V.C.M. 4004 A RR14. PASSED TO TEST 27-1-36 RUNNING TIME:- 149 HRS 5 MINS AT FULL THROTTLE 10 HRS 50 MINS AT 1/4 LOAD 299 1/2 HRS TOTAL AND 3,300 MILES IN 6BTT. Nº 6 CRANKPIN FLANGE BROKEN RIGHT THROUGH ALL ROUND EXCEPT AT POINT 'X' RADIUS AT WHICH BREAKAGE HAS OCCURRED .075 +10 .075 RAD .025 RAD .025 +10 VIEW IN DIRECTION OF ARROW 'A' VIEW IN DIRECTION OF ARROW 'B' ROLLS-ROYCE LTD. EXPERIMENTAL ENGINE DESIGN FEB 19 1937 DERBY CMG / 19/2/37 | ||