ID: 81368d June 24, 2020, 3:30 a.m. No.9727893   🗄️.is 🔗kun   >>7900

Rotary wing aircraft and especially helicopters are relatively slow machines that normally fly at altitudes below 3000 m.

 

Turbine-engined helicopters can reach around 25,000 feet. But the maximum height at which a helicopter can hover is much lower - a high performance helicopter like the Agusta A109E can hover at 10,400 feet.

 

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