Helicopter for One Can Be Folded Up, Carried By One Person

This wee helicopter is the Ka-56 "Wasp," a flying vehicle for one that can be folded down and carried by just one person. Designed and created in Soviet Russia in 1971, it doesn't seem to have really gotten beyond the prototype stage. I'm assuming that's because it's horribly dangerous, but it could be for any number of reasons. Guesses, dear commenters? Oh, and the first person to make a "In Soviet Russia, helicopter flies you!" joke gets banned as a Christmas present to me.

[English Russia]