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).
Strip examination report of a Merlin XX engine following a 300-hour endurance test.
| Identifier | ExFiles\Box 10\5\ 05-page032 | |
| Date | 22th October 1943 | |
| TESTS M.D.B./420 22.10.43 Merlin XX Engine ..................40.0 ..................100.0 ..................34.2 ..................12.0 Object of Test To carry out a strip examination of Merlin XX engine No. A225704 after 300 hours running on the test beds at Sinfin. Part Letter 444 ................ 445 ................ C ................ D ................ E ................ F-G ................ A.225704 ................ With the above exceptions the engine was in excellent condition after its 300 hours endurance test. No undue wear of any kind had taken place and the general condition reflects the highest standard of workmanship and material. | ||