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A hybrid aircraft that is quieter than a Hoover and harks back to the tri-planes of the First World War is aiming to be at the forefront of eco-friendly air travel.
Faradair, based at Duxford, home of the Imperial War Museum, aims to have its bio-electric aircraft (Beha) ready for commercial flights by 2026 with a full fleet available by the end of the decade.
The futuristic 18-seater airplane sports a triple-box wing setup — famously associated with German WWI flying ace the Red Baron — and incorporates a combination of electric motors and biofuel.
Electric motors will orchestrate take-off and landing which will help reduce noise pollution, as the company moves a step closer to carbon neutral travel.
The Beha is expected to register around 70 decibels (dB) when taking off and landing, around the same noise level as a household vacuum cleaner, whereas traditional jet engines can reach 140dB.
Biofuel engines will take over while cruising and power a turbogenerator. The engines will also help recharge the electric motors, with the assistance of solar panels.
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A hybrid-electric plane being built by a British company will be ready for commercial flights in 2026 and it is hoped there will be 300 operational by the end of the decade
The airplane sports a triple-box wing design — a throwback to an experimental design first used in the 1920s — and is designed to be eco-friendly, and eventually carbon neutral
The Beha will be the first aircraft produced since the 1920s to have a three-winged box design.
Perhaps the most famous tri-plane in popular culture is the Fokker Dr.I, made in Germany and flown by First World War fighter pilot Manfred von Richthofen, ominously referred to as the ‘Red Baron’ who is credited with the destruction of 80 opposing planes before he died in battle in 1918.
Unlike the Red Baron’s Fokker tri-plane, which was powered by an Oberursel Ur.II engine, the 21st century Beha runs on electric motors and a biofuel engine.
Mr Cloughley hopes to one day do away with any form of petrol-based fuel source but sees the biofuel engine as an interim solution on the path to a true carbon neutral version further down the line.
At the moment, the technology does not exist for a plane that makes no emissions and a hybrid is the best compromise, he believes. ‘All electric wasn’t going to be possible straight off the bat,’ he told The Guardian.
‘The power density simply isn’t there for anything of any meaningful size. That means that we have to go hybrid; it means that sustainable aviation fuels [SAFs] will be the ideal.’
Sustainable aviation fuels are made from leftover materials, such as waste oil and surplus food and livestock feed. This recycling reduces carbon emissions compared to traditionally manufactured aviation fuel but is still polluting.
Currently just six per cent of all jet fuel is SAF but the UK Government hopes that by 2030 this percentage will be around 83 per cent.
The vehicles will be powered by a 1,600hp bio-diesel engine which will work alongside batteries to fly at speeds of up to 230mph. Start-up firm Faradair revealed it wanted to become the world’s most environmentally-friendly airplanes back in 2014
In World War One, Fokker Dr. I triplanes were used by Germany as the era of the dogfight and aerial warfare was born. The ‘Red Baron’shot down 19 enemies in one of the triplanes before he died in battle in 1918 aged 25 (pictured, artist’s impression)
The most famous triplane was the one flown by the German World War One fighter pilot ace Manfred von Richthofen, ominously referred to as the ‘Red Baron’
Sustainable aviation fuels are made from leftover materials, such as waste oil and surplus food and livestock feed. This recycling reduces carbon emissions compared to traditionally manufactured aviation fuel but is still polluting.
Currently just six per cent of all jet fuel is SAF but the UK Government hopes that by 2030 this percentage will be around 83 per cent.
Take off and landing of Beha will be controlled by the electric motors while the engine takes over as the primary power source throughout the cruising phase of the flight.
The company has been in a long-term partnership with Swansea University to perfect its unique ‘triple box-wing’ design which is intended to maximise lift.
Faradair’s concept plane was purposely designed to allow it to take off and land on runways less than 1,000 feet (300 metres) long.
It utilises a system called ‘vectored thrust’ from two contra-rotating propfans in the rear which are housed in a sound-cancelling area of the vehicle.
Engineers working on the project say these, in combination with electric-powered take off and lansing, means noise levels will be far lower than traditional jet engines.
Take-off and landing will be dominated by an electric motor powered by the batteries and the engine will be the predominant power source throughout the cruising phase of the flight, while also recharging the batteries – with some help from fixed solar panels
The budding company, based in Duxford, is working in partnership with Swansea University to perfect its unique ‘triple box-wing’ design which is intended to maximise lift
One is a propellor-powered short-haul plane, a direct rival to Beha.
Airbus sees hydrogen fuel cells, which produce power and the only waste product is water, as the future of aviation.
In December, Airbus also revealed its designs for self-contained hydrogen fuel cell pods that attach to the underside of aeroplane wings.
Each pod contains a propeller and all the fuel, motors, cooling and engineering needed to provide thrust on long-range flights.
The units are designed to be detachable, so they can can be clipped on and off after a flight to speed up any maintenance that may be required.
Airbus hopes that the pods could could revolutionise air travel and usher in a new era of zero-emission flights.
In the design, three hydrogen fuel cell pods are attached to the underside of each of the aircraft’s wings.
Hydrogen and air are stored inside each individual pod and channelled to the fuel cell, where they combine to generate electric current.
Beha is predominantly intended for passenger transportation but would also be able to carry cargo of up to five tonnes by striping out the seats. The transition from freight to passenger flight can be done in 15 minutes, Faradair claims.
Mr Cloughley says the plane is a compromise which is necessary to improve aviation’s environmental credentials in the short-term while fully carbon neutral alternatives are developed.
‘[It will not be] the sleekest, the sexiest, nor the fastest, the highest or the furthest flying aircraft,’ he says.
But he believes its appeal is in its low emissions, cheapness and flexibility. Its green credentials will only improve as electric motors and battery tech continues to improve, Mr Cloughley says.
Beha and Faradair’s central principle includes electric power and short-haul flights, but other manufacturers have taken a different approach.
Aviation giant Airbus, for example, is focusing its efforts on hydrogen power. In September 2020 it unveiled three new plane designs which it wants to have in circulation by 2035.
Faradair’s concept plane is called Behaand builds on its previous designs which focus on allowing it to take off and land on runways less than 1,000 feet (300 metres) long
Beha is predominantly designed with transportation of passengers in mind but would also be able to carry cargo of up to five tonnes by striping out the seats and replacing it with thee containers
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