Sr 71 Blackbird The Most Unique Plane In the Aviation History 

It's an awesome aircraft.

It still flies but has a new name, the Raven, and more advanced capabilities including ion propulsion for space travel.

Something is unique or it is not. It means one of a kind. It can’t be the “most unique” plane. It’s unique.

1960's? So what do we have today that we are not hearing about?

The GOAT of all aircraft. How can other airplanes even compete with the BBP(big black plane)?

Saying 'most' unique is inappropriate. Uniqueness does not have degrees. Things cannot be more or less unique. Uniqueness is a binary. Things either are unique or they are not.

Skunk works skunk 🦨. L.A. to N.Y. Fast!