Atlanta-based startup Hermeus hopes to develop a passenger airplane capable of reaching Mach 5, or 3,000 miles per hour, but is the prospect of building a hypersonic successor to Concorde merely a ...

The plane is fast, but it could have been even faster. “We settled on Mach 5 version,” says Kevin Bowcutt, Boeing’s senior technical fellow and chief scientist of hypersonics, noting that ...

The Mach 5 arrives as part of a new campaign entitled “Fly Human Fly,” an effort Hoka says is “an invitation to humanity to a place of joy, optimism, and limitless possibilities.” ...

Hermeus said it won the contract after designing, building, and successfully testing a prototype of an engine capable of propelling an airplane to Mach 5, or five times the speed of sound ...

The car rides on 15-inch wheels shod in BFGoodrich tires, and it moves along under the power of a 350ci (5.7-liter) engine tied to a 3-speed automatic transmission. We dug this Mach 5 up on the ...