[nradov]

Those powered lift aircraft don't have enough rotor inertia to perform autorotation. They will have to rely on redundant power systems plus ballistic recovery parachutes.

Autonomous flight is still quite rare. And even when it is used, there are still human pilots standing by to take over in case anything goes wrong.

[godelski]

> Autonomous flight is quite common. When it is used, there are still human pilots standing by to take over in case anything goes wrong.

FTFY.

I'm just saying that comparing autonomous flight to autonomous driving isn't fair. Flying is a lot easier for a machine. You already have tons of data streaming in from airports, other planes, and lots of equipment on the vehicle itself.

[nradov]

That's completely wrong. Sure machines can control take off, navigation, and landing as long as everything works. However they are unable to cope with unexpected system failures. A lot of things can go wrong on even the simplest aircraft and it's impossible to anticipate and code for all of them.

[godelski]

There's different levels of autonomy, just to be clear. I'm not saying they are level 5.