Revival of supersonic air travel is a subject which has largely been relegated to 'silly season' status in the two decades ...

A plane is supersonic if it moves faster than the speed of sound in air, which is around 343 meters per second (767 miles per hour, 1235 kilometers per hour). That is what is considered Mach 1.

This week the company confirmed that the vehicle had achieved speeds in excess of Mach 5 in both missions before safely landing at Vandenberg Space Force Base in California. “We’ve now demonstrated ...

NASA flew the autonomous X-43 test vehicle to hypersonic speed two times in 2004, and the Air Force demonstrated an air-breathing scramjet engine at Mach 5.1 with the X-51 Waverider aircraft in 2013.

In a scientific paper published last month in the peer-reviewed journal Acta Aeronautica Sinica, Comac engineers detailed a Mach 1.6 aircraft capable of flying 4,225 miles, surpassing the Concorde ...

The Best Paper Airplane. Posted: December 21, 2024 | Last updated: March 6, 2025. Master the art of making the best paper airplane. More for You. Hegseth throws down gauntlet to China.

For a simple but surprisingly solid paper airplane, start with a standard 8.5-by-11-inch sheet of paper and follow the instructions below.

While you’re out and about at ArtPrize, you might just spot a giant paper mâché shoe at Cornerstone Church. Commissioned by the Defeat MSA Alliance, the art piece holds a little extra meaning ...

Hypersonic plane startup, Hermeus, plans to make a plane faster than the SR-71 blackbird spy plane. the SR-71 could reach mach 3.3 and fly at 85000 to 100,000 feet in altitude. Quarterhorse Mk 2 will ...

Security classification guidance will only allow us to say the speed is greater than Mach 5.” Based on these remarks, some analysts have speculated that the SR-72 could actually double its ...

Consequently, while the speed of sound is frequently given as 343 m/s (772 mph, or 1,242 kmph), representing room temperature, airplanes can often break Mach 1 at less than 300 m/s.