X-15. Still the fastest airplane ever flown.. top speed 7274 km/h (4520 mph), record set on October 3, 1967 by Air Force Major William “Pete”. 
Discussion
Basically a cruise missile with a landing gear.
LOLOL 😜🤣, I was gonna say a huge engine with wings...😆
I guess there are advantages to that and according to google: "..this airplane was a beautiful example of excellent supersonic aerodynamics.
It sported a slender and streamlined fuselage with a pointed nose, and a very thin short, stubby wing with a leading edge as sharp as a razor blade – all designed to reduce supersonic wave drag on the airplane.
A wedge shape was used because it is more effective than the conventional tail as a stabilizing surface at hypersonic speeds."
😎🤙