when visible, the spirals inform ground crew that the engines of jets are powered off, and safe to approach.
when not visible, the engines turbines are spinning and distance from them is essential.
3.02.2009
FACT: flying
the beautiful geometrical spirals painted on the inside of airline engines serve more then an aesthetic purpose.
when visible, the spirals inform ground crew that the engines of jets are powered off, and safe to approach.
when not visible, the engines turbines are spinning and distance from them is essential.
when visible, the spirals inform ground crew that the engines of jets are powered off, and safe to approach.
when not visible, the engines turbines are spinning and distance from them is essential.
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