How high do helicopters fly?

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. read more

The behavior of the helicopter at such high altitudes is not well know at all, the air is so thin that a lot of things are impacted, rotor lift and response, engine power and behavior are dramatically changes. read more

But of course, helicopters were never meant to fly at these fantastic altitudes, A light 5-6 seats helicopter, no matter which one, was not built to fly that high. Helicopters are meant to do short connections at low altitude. Helicopters meet the needs of the aerial operators required to work in inaccessible zones. read more