Mach 5 Aircraft - Boeing's new hypersonic aircraft concept could serve as a spiritual successor to the Mach 3 SR-71 Blackbird, according to a Popular Mechanics report.
Boeing released artist renderings of a model and concept delta-wing jet at the AIAA SciTech Aerospace Forum this week.
Mach 5 Aircraft
Attack reconnaissance planes can theoretically fly five times his speed of sound. This is thanks to a "waverider" configuration that uses unique shock waves generated in flight to increase lift and reduce drag.
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According to Aviation Week, Boeing has named the plane "Valkyrie 2", but Boeing has yet to release official information and the plane is still in the concept stage.
Four years after unveiling the hypersonic concept at #AIAASciTech 2018, @Boeing unveiled a sleek, more realistic Mach 5 reusable air-breathing design at the @aiaa San Diego event pic .twitter.com/CtpxA5OJGn - Guy Norris (@AvWeekGuy) January 4, 2022
The Valkyrie II is an evolution of Boeing's 2018 concept called the Valkyrie for a hypersonic airliner that can fly between London and New York in just two hours. The hypersonic concept is compared to Lockheed's Martin's own SR-72 project, which is the literal successor to the SR-71 Blackbird.
Both Lockheed Martin and Boeing designs use combined-cycle engines to reach speeds of Mach 3, then transition to dual He ramjets to accelerate to hypersonic speeds. Lockheed Martin Aerojet partnered with Rocketdyne to develop the engine, and Boeing partnered with Orbital ATK.
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Lockheed Martin's SR-72, or "Son of the Blackbird," could make its first test flight in 2025 and is expected to reach speeds of Mach 6, or 4,603 mph (7,400 km/h). I'm here. Although retired by the US Air Force in 1998, the SR-71 Blackbird is the fastest manned aircraft ever. On the other hand, the SR-72 and Boeing's new hypersonic concept his craft could have been aircraft.
China's hypersonic capabilities recently made headlines when it launched a hypersonic missile with "advanced space capabilities" that surprised US officials. Meanwhile, last July, the U.S. Air Force gave his $60 million in funding to a start-up called Hermusa to build a prototype aircraft over the next three years that could travel at speeds of Mach 5 on just one engine. Allowed.
Brian Yenni, co-founder of SMART Tires, told his IE:
Aerospace company Hermes on Thursday announced a contract with the U.S. Air Force and the President and Executive Airlift Directorate to develop a hypersonic aircraft for the president's fleet.
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The next Air Force His One is Boeing's modified version of his 747-8 and is due to be delivered next year, although the contract with Hermas is looking at eventual replacements.
Hermus said it won the contract after successfully designing, building and testing a prototype engine that could propel the aircraft at Mach 5 (he's five times the speed of sound) - about 3,300 mph (3,300 miles per hour). . Mach 5 represents the separation of supersonic and hypersonic speeds.
Hermes plans to design a commercial aircraft in about 10 years and build a high-performance vehicle within the next five years, co-founder and CEO Skyler Shuford said in 2019. Part of the project will focus on integrating Air Force requirements into the aircraft design, according to a press release announcing the Air Force contract.
Hermes came out last year, announcing plans to develop a Mach 5 plane that could fly from New York to Paris in about 90 minutes. In May 2019, AR Technica reported that it had raised early-stage funding led by his Khosla Ventures, which the company used to develop a prototype. The report will use a turbine-based combined-cycle engine for its propulsion system, Hermus said.
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Photo: Hermus says it will be able to design, build and test an engine prototype within nine months. Source: Hermès
At the time, Hermès said it planned to use most of its existing technology and materials to achieve hypersonic flight.
"With today's technology, we can fly very fast aircraft," co-founder and chief technology officer Glenn Case said in a video released this spring.
"There's not much to see," Shuford told Ars Technica last year. “We want to do engineering, not science.” Interest in supersonic flight has been growing for nearly two decades since the retirement of the Concorde, with several superfast aircraft being developed. Airlines seem interested: United has already committed to offering supersonic routes by 2029.
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But what about hypersonic travel, which occurs at speeds of Mach 5 (5 times his speed of sound) and above? The flight time from New York to London is 90 minutes, while the Concorde takes about 3 hours and a regular passenger flight he 6-7 hours.
So does Hermes, an Atlanta-based start-up that aims to develop hypersonic aircraft. The company is already testing a new type of engine that it says can eventually reach Mach 5 (over 3,000 rpm). The engine is a small unmanned hypersonic aircraft, which Hermes currently builds for the U.S. Air Force, but could be scaled up to a larger size to power a jet airliner.
That airliner is still a ways off — Hermes hopes to take it to the skies for its first test flight by the end of his decade in 2029 — but the technology is nearly It would have to be built from scratch, and the company already has plans. .
First of all, it will be much smaller than current planes or the Concorde, which can accommodate about 100 passengers.
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AG Piplika, CEO of Hermus, said: “We focused on business class and first class passengers and experimented with several parameters such as speed and operating costs, resulting in a 20-passenger cabin aircraft,” he added. rice field.
There is only one class for him, as this is far from the capacity of a large business jet.
At current business class prices, I would expect it to be profitable, but it's hard to tell how much people are willing to pay to fly five times faster. ’ says Pipilka. "
The plane has a range of about 4,000 nautical miles, which is sufficient for transatlantic routes like New York to Paris, but not enough for transpacific routes like Los Angeles to Tokyo, which require a stopover.
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Land travel from New York to Los Angeles is out of the question due to noise regulations. Breaching the sound barrier creates loud noises that normally occur on water.
To understand just how bold the anti-aircraft concept is, it helps to look at the flight speed records.
The fastest speed ever for an engine-powered aircraft was Mach 9.6 (about 6,800 mph), which he set in 2004 by NASA's X-43A, an unmanned aerial vehicle about 12 feet long.
Its flight time was just a few seconds, so the record for longest sustained flight at Mach 5 was held in 2013 by another experimental drone, the Boeing X-51, which flew for more than three minutes at Mach 5.1 (approximately 3,400 mm). I'm here. .Both aircraft had to be launched from above by B-52 bombers and then accelerated by rockets, demonstrating the complexity of this type of high-speed aircraft.
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The current absolute speed record for manned aircraft is Mach 6.7 (4,520 miles per hour), set by his X-15 in 1967. Originally designed as a record-setting rocket with a seat, it was to be launched from high altitude by a B-52.
An air-breathing aircraft powered by a jet engine rather than a rocket and capable of taking off and landing under its own power has a speed record of "Mach 3.3" (about 2,200 miles per hour). 1976, military reconnaissance aircraft SR-71 Blackbird
The Concorde's top speed was Mach 2.04 (1,350 mph), one of only two of his commercially flown supersonic airliners.
The proposed Hermès airliner would significantly surpass the current record for the fastest air-breathing aircraft, and by flying longer at Mach 8, would represent a breakthrough in the field of unmanned experimental aircraft (and, of course, other aircraft are possible). Break these records in the future before Hermès does).
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So it's no surprise that the company's first focus was on the engine. In February 2020, testing began on a new type of engine design based on existing models manufactured by General Electric and used in fighter aircraft.
It will be a hybrid of two traditional techniques.
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