1. Beginning on 29 September 1910 her boiler tubes were renewed at Cherbourg. 2. The boilers were a conventional type with round-topped boiler tubes , in diameter. 3. Some of the first boiler tubes , particularly the scale internally. 4. The shorter overall length meant that the boiler tubes were shorter, which also improved draughting. 5. Other important area of concern as far as Silica deposition is concerned is boiler tube . 6. This caused air to be fed into the horizontal boiler tube probably caused the priming. 7. While in refit, fire gutted the wheelhouse and boiler tubes burst later during speed trials. 8. "Cattistock " steamed to Portsmouth for boiler tube replacement. 9. A steel pipe or " boiler tube " pilot replaced the original wooden type of cowcatcher. 10. The class also suffered from leaking boiler tubes after passing over points, which necessitated structural reinforcement.