| 31. | Like the subsequent and 16DA, the Class 16C locomotives were all delivered with diameter coupled wheels.
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| 32. | In 1943 the decision was taken to alter the second and third coupled wheels to thin flanges.
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| 33. | This increase still did not allow sufficient clearance between the boiler barrel and the diameter coupled wheels.
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| 34. | For multiple coupled wheels on a rigid chassis a variety of systems for controlled side-play exist.
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| 35. | With its coupled wheels, it was very fast and one of them achieved during a test run.
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| 36. | Transmission was via a torque converter and a jackshaft final drive mounted ahead of the leading coupled wheels.
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| 37. | On the final batch of 1869 the springs were located underneath the axle boxes of the coupled wheels.
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| 38. | The leading coupled wheels, which had been flangeless, as built, were flanged during the retyring.
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| 39. | To see why, visualise two coupled wheels, near each other, on a common vertical axle.
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| 40. | Originally the 141 Class had leading wheels of diameter, coupled wheels of diameter, and cylinders measuring.
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