New spy plane can travel at five times the speed of sound.

  

Boeing has finally unveiled a successor to the legendary Blackbird SR-71 spy plane, capable of traveling at five times the speed of sound.
The new “Son of Blackbird” was revealed at an event in Orlando, Florida, but it’s only a concept design for now.
The new aircraft will be a direct competitor to Lockheed Martin’s upcoming SR-72.
These rival firms are racing to create a hypersonic aircraft that’s capable of stealthy recon assignments — and strike missions, too.
Speaking to Aviation Week Aerospace Daily, Boeing’s hypersonics chief described how Boeing was planning a two-step development process for the new warplane.
The first stage would involve flight tests of an “F16-size, single-engine” precursor vehicle that acts as a “proof of concept.”
The second stage is the creation of a “twin-engine, full-scale operational vehicle” that has roughly similar dimensions to the 107-foot-long SR-71.
Boeing’s end goal is an aircraft that can travel at speeds beyond Mach 5 — that’s five times the speed of sound.
The speed of sound — or Mach 1 — is around 767 miles per hour. So hitting Mach 5 would mean the Son of Blackbird would have to travel at an incredible 3,836 miles per hour.
For comparison, a Boeing 747 passenger jet typically reaches cruising speeds of just 549 miles per hour.
The tricky part is that the SR-71 replacement needs to be able to take off, accelerate, slow down and land all on its own — just like the original 1964 model.
Boeing is looking at using a conventional turbojet to hit Mach 3, then switching to a different configuration to boost beyond Mach 5.
Sadly, there’s no guarantee when Boeing will have a sky-ready model, so we’ll just have to drool over concept renderings for now.


NY Post/The Sun.