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| | LNER Class A4 - Wikipedia, the free encyclopedia |
 | | This device improved the free-steaming capabilities of the locomotives further, and the final three locomotives of the class (4901 Capercaillie, 4902 Seagull and 4903 Peregrine) were also fitted with the Kylchap exhaust from new, and eventually the rest of the class were fitted with it (by BR) in the late 1950s. |
 | | This class of locomotive was also noted for its streamlined design, which not only improved its aerodynamics, thus increasing its speed capabilities, but also created an updraught to lift smoke away from the driver's vision, a problem inherent in the earlier A3 design. |
 | | At the end of the record attempt, the middle big end (part of the motion for the inside cylinder) was found to have run hot, the bearing metal having melted, which meant that the locomotive had to stop at Peterborough rather than continue on to London. |
| en.wikipedia.org /wiki/LNER_Class_A4 (1261 words) |
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