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Four and a half hours from London to Sydney? This jet makes it possible



Visualization of a sword-supported aircraft. Picture: pd

About half of the world in four hours – and even without kerosene:

The speed of sound in a few hours in five hours without kerosene to Australia. What seems impossible should be possible thanks to a new hydrogen drive from a British company.

Bruno Knellwolf / ch media

From London to Sydney in four and a half hours. Impossible, someone thinks. But the British company "Reaction Engines" promises precisely this, thanks to a new type of flying technology.

The first tests of the most important part of the propulsion system in the US were successful, and now founded in 1989 by three Rolls-Royce engineers, the company began searching for a test airport in Scotland for ultra-fast supersonic propulsion.

Concorde landed hard

Although this was declared dead faster than the Concorde territory. The Anglo-French supersonic aircraft was about twice the speed of sound, reaching 2400 km / h on the road, and within three hours from London to New York.

But a serious accident in Paris on July 25, 2000 was the beginning of the end of the prestigious aircraft. Metal parts lying on the runway damaged the tank at the start of the Concorde, the plane crashed and 113 people were killed.

On October 24, 2003, the last Concorde began, but the fall was not only related to this accident. Costs were also very high, such as energy degradation, environmental impact and noise causing fast aircraft. Flying for the passenger was not only expensive but also disturbing because the seats in the aerodynamic plane were cut tightly.

6300 km / h with

But now everything is about to change with "Reaction Engines". And in fact, thanks to the "Saber" driver designed to use a space glider to move satellites and people into space. Especially for the new generation of reusable launch vehicles. This technology, according to the British company will be used for passenger aircraft.

The Saber is equipped with air intake technology, which can be achieved with Mach 3 as well as three times the speed of sound on the road.

When switched to rocket mode, the All in Saber with Mach 25 is even possible, the British company explains. Mach 5 is twice as fast as a Concorde and 50 percent faster than the world's fastest aircraft, the SR-71 Blackbird.

More about the driver:

Video: other_external / zvg

Unlikely sounds, as the British firm reported on Wednesday, bypassed the first test hurdles of the core driver's core technology.

Saber, the key technology tested in the US stands for Synergistic Air-Breathing Rocket Engine with pre-cooler, pre-cooler. When a Saber-powered aircraft flies with Mach 5 through the Earth's atmosphere, the air flowing to the engine becomes extremely hot. Over 1000 degrees.

This causes the steel to shine and the parts of the motor to melt. Therefore, the air must be cooled with a pre-cooler in a fraction of a second up to minus 120 degrees. The cooled air in the drive is then compressed with hydrogen, remaining harmless and directing the aircraft.

Tests completed last week in Colorado have shown that the engine pre-cooler can cool the temperature produced at Mach5 speed as desired.

Pre-cooler is very important

The pre-cooler is one of the three important components of the Saber drive. In addition, the core engine and combustion chamber allow a very high acceleration. All three components can be tested separately on the ground.

Mark Thomas, CEO of Reaction Engines, says the successful pre-cooler test series in the US is a milestone in the development of this drive. This not only enables extremely fast air traffic but also hybrid electric flight thanks to integrated Saber-assisted heat management.

Fly at a height of 25 kilometers

Because Saber propulsion should not only be faster than jet propulsion, but also more efficient, which is an important aspect in fly ash times. First, the supersonic aircraft must fly much higher than conventional aircraft. At the top, the air resistance is lower than the normal fuel-saving 10 km orbit.

However, the passenger aircraft must not fly too high, because otherwise the oxygen required for combustion with the fuel hydrogen retained is lacking. Ideally, it would be about 25 kilometers high.

Exactly the use of oxygen available in the air makes the Saber drive economical. Oxygen should only be transported when the Saber drive is used near the earth. Otherwise, oxygen is sufficient from the air. "Reaction Engines" says Richard Webster-Smith:

"The saber engine is very efficient due to its technology and the use of hydrogen. This is much more environmentally friendly than the kerosene product.»

According to Webster-Smith, after the pre-cooler, the core engine test is about to end in Buckinghamshire in the UK. All of this is possible because investors are spending a lot of money on the development of the visionary Saber driver. Over the past four years, this has been more than £ 100 million from the public sector and from private investors such as Rolls Royce and Boeing HorizonX.

British Science Secretary Chris Skidmore says that Saber driving is one of Britain's most exciting engineering projects that will take satellite transport into space and travel the world. The UK Space Agency works closely with the European Agency ESA.

First test flights in the next decade

In CNN, Graham Reanocktion Engines Turnock said he expects the work to proceed well with the launch of a passenger plane at supersonic speeds in the 2030s recently. This was confirmed by Webster-Smith, who did not want to give a name for a year. According to the engine tests, the target is "to launch the first test flights in the next 10 years."

However, it is also possible that the basic elements of the Saber drive, such as the pre-cooling system, are already available to improve the fuel efficiency and efficiency of existing turbojet engines, Webster Webster-Smith says.

What about the noise that makes Concorde impossible? Motor Motorized planes will never be quiet. But since Concorde, great progress has been made in acoustics. This makes it possible to minimize the noise of Saber engines, Webster Webster-Smith says.

What does the flight crew really want to tell us?

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