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Wrong Michael Stewart?

Michael Stewart

Chief Executive Officer

World SkyCat Ltd

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Web References(10 Total References)


Wednesday-Night - » Airships, Aviation and the Environment

www.dianaswednesday.com [cached]

Michael Stewart of the company World SkyCat suggests burning both gaseous and liquid hydrogen to keep the weight of the craft constant.


edition.cnn.com

The difference is radical says Michael Stewart, chief executive of World SkyCat Ltd, a British company which has designed a new air vehicle, the SkyLiner.
"The breakthrough is to combine the airplane with the airship, creating a hybrid," Stewart said. Marrying the lift provided by the (lighter-than-air) helium with the aerodynamic lift of an airplane transforms everything, he says. Two thrusters on either side of a laminated fabric shell afford control at low speeds, while other features do away with the need for a ground crew when the hybrid needs to land. "An airship of our kind, carrying let's say 200 tons or more, with its air-cushioned landing system is able to land without any runways -- on tundra and semi-rough ground," Stewart said. Unquestionably, the big market will be in cargo. One is regular freight, where you're essentially competing with 747s --Michael Stewart, World SkyCat Ltd "Unlike conventional airships, where a few million dollars will get you into the air, hybrids cost hundreds of millions to build," Stewart said. Undaunted, he points to recent orders secured by rival company, UK-based Hybrid Air Vehicles Ltd who last year won a contract to build a similar hybrid airship for the U.S. military contractor Northrop Grumman. The $517 million "Long Endurance Multi-Intelligence Vehicle" (LEMV) is longer than a football field and will provide high altitude (20,000 feet) surveillance for U.S. troops in Afghanistan by 2012. But Stewart believes these hybrids' unique strengths are better served elsewhere. Stewart estimates a 50-ton payload vehicle would cost around $1,500 per hour for fuel, maintenance and crew.


www.joconl.com

Michael Stewart, managing director of World SkyCat of the UK claims to have an alternative to the construction of the proposed Mackenzie Valley natural gas pipeline, which does not have the same negative social and environmental impacts.
"We've named them "SkyGas", he said. "In the broadest terms a fleet of airships at a cost of $4 billion can replace a pipeline at a cost of $16 billion," said Stewart. "SkyGas can open up gas fields that are otherwise stranded," said Stewart. Stewart said the one piece of infrastructure that will need to be built are hangars. The vehicles will need to have a base and somewhere to go for ongoing maintenance. These hangars will have to be huge, becasue the airships are 1220 feet long. Stewart said there are two immediate challenges to the development of hybrid air vehicles for the transportation of natural gas. "Pipelines are an extremely well known technology. We are talking about something that is unproven," said Stewart.


pragmatos.net

Michael Stewart of the company World SkyCat suggests burning both gaseous and liquid hydrogen to keep the weight of the craft constant.


www.gulf-times.com

Michael Stewart of the company World SkyCat suggests burning both gaseous and liquid hydrogen to keep the weight of the craft constant. Michael Stewart of the company World SkyCat suggests burning both gaseous and liquid hydrogen to keep the weight of the craft constant.


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