Mike Durham, the Technical Director at Hybrid Air Vehicles, admires the helium-filled 'Airlander' aircraft in a giant airship shed on February 28, 2014 in Cardington, England. The Airlander, which was originally developed for the US military before the project was cancelled due to budget cuts, is the world's longest aircraft at 92 meters. Although slow moving compared to conventional aircraft, the Airlander is able to carry large payloads over long distances very efficiently. Hybrid Air Vehicles' project to develop the technology further is being funded by a Government grant as well as private finance from individuals including Bruce Dickinson, the lead singer of the band Iron Maiden.
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