洪都计划在2005年制造第一台上天的L - 15，并且在同年开始试飞。

Hongdu plans to build its first flying L-15 in 2005. Its flight trials are slated for the same year.

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最近一种新型直升机在系列试飞中已经开始打破速度记录。

In a recent series of test flights, a new type of chopper has begun smashing speed records.

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这些试飞是在印度飞行员接受了使用这些战机的训练之后开始的。

The trials began after Indian pilots were trained in the use of the combat jets.

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