The Antipode: Flying from New York to London in 11 minutes

Charles Bombardier, the industrial designer who came up with both designs, has dubbed this newest concept the Antipode, which he conceived in collaboration with Lunatic Koncepts founder Abhishek Roy

In theory, it could carry up to ten passengers up to 12,430 miles in under an hour.

"I wanted to create an aircraft concept capable of reaching its antipode -- or diametrical opposite -- as fast as possible," Bombardier told Forbes.

The Antipode's wings would be fitted with rocket boosters that would propel the aircraft to 40,000 feet, and enable it to reach Mach 5. Like the Skreemr, the plane would be powered by a scramjet engine. Unlike conventional jet engines, scramjet engines have virtually no moving parts. And unlike rockets, scramjet engines would burn oxygen from the atmosphere instead of having to carry heavy tanks full of oxygen.

Even NASA hasn't created a stable scramjet yet. The Pentagon came closest, launching a small, unmanned scramjet aircraft in 2013 that hit Mach 5.

The designer himself doesn't seem too worried that his concept is still decades away.

As he explains in a video on his website:

"It's all about innovation. Share your idea, and it opens up a door for other designers to build on it."