Another attempt,back-pack helicopter

[Jens]

Seremet's machine is on your back at start and landing. Body legs is main or only landing gear
Test it. Take a person, 150lb, on your back. Jump from 1 or 3 ft height - and I think you at once will understand how (almost) impossible it is to handle that much load on your back. And in this test you don't have a spinning rotor on top of your head that might have sufficient energy to kill you.

In Nick's machine, the body is fixed to the heli frame. All load at start and landing goes into the heli frames landing gear.
The problems here are different. This machine, with even a minor forward speed and an uneven terrain - he and the hole thing will tumble! He can do nothing or very little with his legs, because it will immediately ruin the balance of the hole machine.

Do you agree?