US Announced NEW Super Fast Aircraft! No One Can Catch Up With It! A hypersonic aircraft is being developed in the USA which can fly from New York to Beijing in just an hour! The SR-72 or Darkstar is the fastest fighter jet in existence. It took more than $1 billion and 10 years of hard work to develop it. During development, the engineers faced dozens of different problems.
The Darkstar was built in the spirit of the legendary SR-71 Blackbird, which once set a world speed record of 2,200 mph. It could have been faster, but its design simply could not withstand higher speeds. At this speed, the aircraft body heats up to 750 degrees Fahrenheit. To overcome this barrier, the developers had to create completely new components and materials, which were later used to build the new SR-72. But what really makes Darkstar legendary is its unique engine!

US SECRETLY Tests Brand NEW Hypersonic Aircraft!