Flying high: UK's modern-day green airship takes shape

Britain's innovative Airlander 10 airship could soon take to the skies to offer leisure passengers panoramic views and far less pollution than traditional aircraft, according to its manufacturer.

On the outskirts of the town of Bedford, north of London, UK company Hybrid Air Vehicles (HAV) says its plans are well underway for greener but slower commercial air travel.

The Airlander — which is 300 feet (91 metres) long — is lifted by its gigantic helium-filled hull, which is then steered through the air by engine propellers powered by conventional fuel.

The dirigible is "unlike any other aircraft cabin you've sat in", HAV chief executive Tom Grundy told AFP on a visit to the Bedford facility.

"It's big, it's long, it's spacious (and) it's very quiet to sit on board.

"There's floor-to-ceiling windows, and the aircraft's unpressurised, so you can even open a window and look at the outside world as you're going over it."

The airship, initially developed for the US army, is longer than the Airbus A380 jumbo yet pumps out up to 75 per cent less emissions than aircraft, according to HAV.

The group plans to start production later this year, while electric- and hydrogen-powered versions are planned in order to further slash emissions.

HAV has already manufactured a prototype, part of which is now on display in Bedford after completing test flights.

The tech hub also features a life-size model of the future airship that allows visitors to step on board and view its "luxury" configuration including a bar, passenger cabins and an observation lounge.

However, experts concede that airships will be hindered as a form of transport owing to its slow speed versus other airborne modes.

Professor Andreas Schaefer, director of the Air Transportation Systems Laboratory at University College London, cautioned that it would be a "niche" market.

"On a commercial basis, as a vehicle for long distance transport, I can't see any future because simply the speed is by far too slow," he noted.

HAV is one of the few companies that it seeking to relaunch the airship, but using the inert gas helium.

Almost 90 years ago, the Hindenburg Zeppelin -- filled with highly flammable hydrogen -- exploded in the United States in 1937, killing 36 people and ending the widespread use of airships.

Yet the potential of airships to provide an environmentally friendly, low-cost alternative to helicopters and passenger jets for transportation has now sparked renewed interest.