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On January 29, 2025, a United States Army Sikorsky UH-60 Black Hawk helicopter collided mid-air with American Airlines Flight 5342 (operated by PSA Airlines as American Eagle), [a] a Bombardier CRJ700 airliner, over the Potomac River, about half a mile (800 m) short of runway 33 at Ronald Reagan Washington National Airport in Arlington, Virginia.
The first manufactured object to achieve hypersonic flight was the two-stage Bumper rocket, consisting of a WAC Corporal second stage set on top of a V-2 first stage. In February 1949, at White Sands, the rocket reached a speed of 8,290 km/h (5,150 mph), or about Mach 6.7. [2]
The test aircraft then accelerated to Mach 5.1 (3,400 mph; 5,400 km/h) and flew for 210 seconds until running out of fuel and plunging into the Pacific Ocean off Point Mugu for over six minutes of total flight time; this test was the longest air-breathing hypersonic flight. Researchers collected telemetry data for 370 seconds of flight.
A commercial passenger plane bound for Reagan National Airport collided with a US Army Black Hawk helicopter over the Potomac River just outside of Washington, DC, on Wednesday. There were 64 ...
A Chinese aerospace firm has completed the first test flight of a passenger plane that it claims can fly at Mach 4 – more than twice the speed of Concorde.. Beijing-based Space Transportation ...
Some plane passengers were still strapped in their seats, but removing them proved difficult as sharp pieces of debris ripped the wetsuits worn by first responders. ... At least 41 bodies – 28 ...
The waverider remains a well-studied design for high-speed aircraft in the Mach 5 and higher hypersonic regime, although no such design has yet entered production. The Boeing X-51 scramjet demonstration aircraft was tested from 2010 to 2013. In its final test flight, it reached a speed of Mach 5.1 (5,400 km/h; 3,400 mph). [1] [2]
By Friday afternoon, crews had recovered 41 bodies and 28 had been positively identified, D.C. Fire Chief John Donnelly Sr. said at a news conference. He said 18 families have been told loved ones died. The crash. The regional jet out of Wichita, Kansas with 60 passengers and four crew was preparing to land.