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).
Statistical report on Merlin III, IV, and X engine faults and service returns from March-May 1940.
| Identifier | ExFiles\Box 141\2\ scan0233 | |
| Date | 31th May 1940 | |
| MER III IV AND X ENGINES RETURNED FOR SERVICE MAR. APR. MAY. 1940 51 ENGS OUT OF 237 RETURNED BY AIRFORCE FOR THE FOLLOWING. OVERHAUL AVER HRS 224 16 ENGS LOSS OF COMPRESSION AVER HRS 171 12 FAULTY WORK BY AIRCRAFT MECHANICS 8 METAL IN FILTERS AVER HRS 104 8 INTERNAL GLYCOL LEAKS AVER HRS 84 4 CRACKED OIL SUMPS AVER HRS 175 2 DAMAGED BY FOREIGN AIRCRAFT 1 DETAILED REPORTS OF FAULTS FOUND ON 57 ENGS DURING EXAMINATION ENGS WITH MAGNETO DRIVING GEAR E31691 UNSERVICEABLE AVER HRS 146 27 ENGS ENGS WITH PLATING BROKEN ON ROCKER PADS CORRESPONDING CAMS WORN AVER HRS 127 8 ENGS WITH BROKEN VALVE SPRINGS AVER HRS 107 5 APPROX: 4% OF CARBURETTERS DEALT WITH IN THE REPAIR DEPT: ARE FOUND TO HAVE JET NEEDLES GUMMED UP LY/GWH{George W. Hancock - Head Chateauroux} | ||