显然，在较短bellcrank手臂可以适应，如果成功的bellcrank船尾轴移动，使二者控制臂几乎平行的。

Obviously, a shorter bellcrank arm can be adapted with success if the bellcrank axle is moved aft so that the both control arms are almost parallel.

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Badcock国际部开发了一种新的无损(NDT)海军舰船尾轴的测试技术，该技术可以将原来需要18周的测试时间缩短到1个月。

Babcock International has developed a new non-destructive testing (NDT) technique for naval ship tailshafts that could reduce assessment time from 18 weeks to one month.

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