So can other aircraft, such as helicopters or prop-planes that don't have jet engines, fly through these conditions?

那么其他的一些飞行器，比如说直升飞机，螺旋桨飞机，他们没有喷气式引擎，可以在这种条件下飞行吗？

youdao

The purpose of this jet is to achieve 12 knots, as opposed to the 7 knots that the unit currently produces with a standard prop.

这架喷气机的目的将达到12个结，与单位当前导致与一个标准支柱的7个结相对。

youdao

In 1948, six Boeing engineers worked for weekend in a hotel room to produce a 33 page proposal, which included moving from turbo-prop to jet engines, and accompanied this proposal with a balsa-model prototype, in order to salvage a team project that was at the risk of failure.

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