【未来的新型客机 更大更清洁更安静】

【未来的新型客机  更大更清洁更安静】近日,NASA宣布研发一款新型客机,采用了“双泡”设计,提供一个很宽的双通道飞机机身。这种设计不仅提供了更多的内部空间,也可以让机身作为一个机翼,并提供额外的升力。和目前的客机相比,该款客机燃油消耗削减71%,机舱噪音降低60分贝,废气排放降低87%。

飞机

Nasa is bringing back the era of 'X-planes' - a series of experimental aircraft first tested by the space agency in the 1940s.

Among its plans is the 'double bubble' D8, which is a twin-hull plane that is designed to make the experience of flying more fuel efficient, with faster loading and unloading and a quieter, more comfortable takeoff.

The design was initially developed by Aurora Flight Sciences and MIT in 2008, and now Nasa has awarded the company a $2.9 million (£2.19 million) contract to make a scale model of the aircraft.

 

The X-planes were a celebrated part of post-war aviation, helping Nasa break the sound barrier and create more efficient planes.

The Virginia-based Aurora Flight Sciences is hoping to create the latest generation of X-plane with the D8, and says the plane will begin service in 2027.

The 'double bubble' D8 Series future aircraft design concept came from a research team led by the Massachusetts Institute of Technology.

It is designed to be over 50 per cent more fuel efficient than current best-in-class aircraft.

On a flight from LAX airport in LA to JFK in New York - a distance of 2,475 miles (3,983 km) - the D8 would save 2,095 gallons (9,524 litres) of fuel compared to the most efficient commercial aircraft available today.

'The idea there is to take some of the lift that you would normally get from the wings and try and move that to the fuselage,' said Michael Rogers, a research at Nasa's Ames Research Center.

'Another thing that's done to enable laminar flow on this vehicle is to reduce the sweep of the wings.

'It is easier to maintain laminar flow if the wings, instead of being swept back like a lot of modern commercial transports, are more sort of perpendicular to the side of the body of the plane.'

According to Aurora, the D8 takes its inspiration from the famed Boeing 707 of 1958, which not only introduced the public to single-day world travel, but also used a tube-wing design that redefined passenger aircraft.

The D8 is designed to fly at 582 mph (936 km/h) with 180 passengers over a range of 3,500 miles (5,500 km).

The design has the potential to cut fuel burn by 71 per cent, reduce noise and cut LTO NOx emissions by 87 per cent compared to a Boeing 737-800 narrow-body aircraft.

As part of the Nasa contract, Aurora will build test components as the company develops a 1:2 scale demonstrator X-plane over the next three years.

The X-planes were a celebrated part of post-war aviation, helping Nasa break the sound barrier and create more efficient planes.

The Virginia-based Aurora Flight Sciences is hoping to create the latest generation of X-plane with the D8, and says the plane will begin service in 2027.

The 'double bubble' D8 Series future aircraft design concept came from a research team led by the Massachusetts Institute of Technology.

It is designed to be over 50 per cent more fuel efficient than current best-in-class aircraft.

On a flight from LAX airport in LA to JFK in New York - a distance of 2,475 miles (3,983 km) - the D8 would save 2,095 gallons (9,524 litres) of fuel compared to the most efficient commercial aircraft available today.

 

'The idea there is to take some of the lift that you would normally get from the wings and try and move that to the fuselage,' said Michael Rogers, a research at Nasa's Ames Research Center.

'Another thing that's done to enable laminar flow on this vehicle is to reduce the sweep of the wings.

'It is easier to maintain laminar flow if the wings, instead of being swept back like a lot of modern commercial transports, are more sort of perpendicular to the side of the body of the plane.'

According to Aurora, the D8 takes its inspiration from the famed Boeing 707 of 1958, which not only introduced the public to single-day world travel, but also used a tube-wing design that redefined passenger aircraft.

The D8 is designed to fly at 582 mph (936 km/h) with 180 passengers over a range of 3,500 miles (5,500 km).

The design has the potential to cut fuel burn by 71 per cent, reduce noise and cut LTO NOx emissions by 87 per cent compared to a Boeing 737-800 narrow-body aircraft.

As part of the Nasa contract, Aurora will build test components as the company develops a 1:2 scale demonstrator X-plane over the next three years.

http://www.dailymail.co.uk/sciencetech/article-3790784/The-future-flying-Double-bubble-plane-skies-2027-getting-Nasa-funding.html


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