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On December 20, 1989, Lockheed Skunk Works head Ben Rich arranged a final farewell flight of the SR-71 Blackbird (#972) over the Burbank and Palmdale facilities as a tribute to employees and the legendary designer Kelly Johnson. Rich secretly arranged for Johnson to watch the flyby from a limousine....

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NASA's 'quiet' supersonic jet completes first flight in potential breakthrough for commercial air travel | Morgan Phillips, Fox News X-59 aircraft designed to reduce sonic boom to a 'thump' could revolutionize commercial aviation A new "quiet" supersonic X-59 jet designed to revolutionize air travel successfully completed its first test flight, Lockheed Martin announced this week. The sleek, needle-point aircraft built for NASA is designed to break the sound barrier while reducing the sonic boom to a "thump," according to the aerospace contractor. The aircraft aims to overcome one of the major hurdles to supersonic travel, which is noise restrictions over land. The plane took off from Palmdale, Calif., at Skunk Works' facility at U.S. Air Force Plant 42, accompanied by a NASA chase plane. It landed safely about an hour later at NASA's Armstrong Flight Research Center. The plane’s unique shape is designed to greatly lower the volume of the sonic boom typically produced when a plane breaks the sound barrier. The long, pointed nose prevents adequate forward-facing visibility, so the pilot flies relying on a monitor in the cockpit. NASA has paid Lockheed over $500 million since 2018 to develop the plane. The plane, which measures just under 100 feet nose to tail, flew at subsonic speeds on its first flight, around 230 mph and reached 12,000 feet. The plane is built to eventually reach a cruising speed of 925 mph, or Mach 1.4, and fly at an altitude of 55,000 feet. "This aircraft is a testament to the innovation and expertise of our joint team, and we are proud to be at the forefront of quiet supersonic technology development," OJ Sanchez, vice president and general manager of Lockheed Martin Skunk Works, said in a statement. "X-59 is a symbol of American ingenuity. The American spirit knows no bounds. It's part of our DNA – the desire to go farther, faster, and even quieter than anyone has ever gone before. This work sustains America's place as the leader in aviation and has the potential to change the way the public flies," said Sean Duffy, acting NASA administrator. The supersonic Concorde aircraft, developed by France and the U.K., began transatlantic flights in 1976, reached max speeds of over 1,300 mph and flew passengers from New York to London in just 3.5 hours. But high operating costs meant ticket costs were about four times higher than a standard first-class ticket, and the supersonic boom meant the plane could only fly at such high speeds over water. A crash in 2000 deeply affected public confidence in the plane, and it was retired in 2003. NASA plans to fly the X-59 over several U.S. cities in the coming years, gathering public feedback that could help regulators update decades-old bans on supersonic flight over land. If successful, the data could open the door for a new generation of commercial jets capable of cutting cross-country flight times in half — bringing back supersonic travel for the first time in more than two decades, but this time with far less noise.

Owen Gregorian

38,848 次观看 • 8 个月前

This is real gun camera footage from a P-51 Mustang, chasing a German Bf 109 down to the treetops until it goes down in flames. The American pilot flying it, Lt John Kirla, shot down five enemy planes in a single day, becoming an ace in one mission. This footage captures one of his victories over a Bf 109. This is his story.. From Trainee to the Yoxford Boys John Kirla was not a born fighter ace. He was an ordinary young American who had come up through flight training in Texas, graduating at the start of 1944. He learned his trade on trainers, moved up to fighters, and got just 15 hours in the P-51 Mustang before being sent to England as a replacement pilot. He joined the 362nd Fighter Squadron of the 357th Fighter Group, a unit based at Leiston that was already becoming a legend. The 357th was the first group in the Eighth Air Force fully equipped with the Mustang, and it would go on to produce more aces than any other fighter group in the Eighth, including Chuck Yeager and Bud Anderson. Kirla was the newest pilot in a squadron already filled with experienced aces. His job was to escort American bombers deep into Germany and protect them from the Luftwaffe. On November 27 1944, he got the day that would define him. Five Victories in One Mission That morning the 357th ran headlong into a massive swarm of German fighters trying to get at the bombers. Kirla's flight dropped their fuel tanks and dived straight into the middle of it. Almost immediately, the fight became a swirling, low-level brawl of Mustangs, Messerschmitts, and Focke-Wulfs twisting across the sky. Kirla picked out his first target and opened fire, and from that moment he did not stop hunting. In his own account, he spotted a Bf 109 that was attacking an American bomber. He went after it, closed to just 30 yards, and when the German threw his fighter into a tight barrel roll straight down toward the ground, Kirla stayed glued to his tail and, in his words, clobbered him all over until he went down. An Ace in a Day He kept finding more. Again and again through that wild, sprawling fight, Kirla latched onto an enemy aircraft and did not let go. At one point he watched a German fighter shoot down one of his fellow Mustang pilots right in front of him, and closed in for revenge. As he described it afterward, he opened fire, saw pieces start to fly off the enemy aircraft, and watched it fall out of the sky like a leaf drifting to the ground. Rather than breaking away and climbing back to safety, Kirla chased his targets down low, following them almost to the ground, the fighters weaving over villages and treetops until the enemy aircraft finally went down. By the time the fight was over, John Kirla had shot down five German aircraft in a single mission. He had become an ace in a day, one of the relatively few American fighter pilots to achieve that in a single mission. The Mustang That Changed the Air War The Mustang was the aircraft that made days like Kirla's possible. The P-51 combined long range, high speed, and deadly firepower, and it could follow the bombers all the way to their targets and fight the German fighters on equal or better terms. By the end of the war, P-51 groups had claimed close to 5,000 enemy aircraft shot down, about half of all American air-to-air kills in the European theater. Kirla's own group, the 357th, became the top-scoring Mustang group in the Eighth Air Force. Flying one of the finest escort fighters of the war, men like Kirla helped turn the tide of the air war over Germany. The gun-camera film rolling every time he pressed the trigger captured it all, including the footage you are watching. John Kirla's Legacy John Kirla flew on to the end of his combat tour and finished the war as a double ace, credited with 11 and a half enemy aircraft destroyed in the air. He was awarded the Silver Star and the Distinguished Flying Cross for his courage in the skies over Europe. He had gone from a trainee with a handful of hours in a Mustang to one of the deadliest fighter pilots in one of the deadliest fighter groups of the war, in the span of a single year. The footage of his Mustang chasing a Bf 109 down to the trees is only a few seconds long. But behind those few seconds is a young American who climbed into a fighter, dove into a swarm of the enemy, and shot down five of them before the day was out. This was the story of John Kirla. I post a story like this every single day. Most people never see them. Follow so you don't miss the next one.

Untold War Stories

151,438 次观看 • 6 天前