Mount Everest. Mother earths serial killer?

[JEMC]

Kynes said:

spurgeonryan said:

Dark_Lord_2008 said:

You are crazy to even consider climbing a 8,000m+ mountain. Mt. Everest(10% death rate), K2(20% death rate), Ana Purna(38% death rate). It would be really cool if you could ascend the mountains and base jump from their peak and land safely down onto the soft ground.

Is it not possible for helicopters to go that high?

I'm not sure, but I think over 7000m is hard for them to fly, due to the lower air density.

It's called "gorunf effect", and (please correct me if I'm wrong) it's when the air pressure difference between the top and bottom of the rotors is not enough to push the copter higher.

Reaching this point depends on the design of the rotor. As such there are helicopters that can't go higher than 3 or 4.000 m while others, mostly experimental, have landed on the Everest and even reached the 12.000 m.