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UPDATED 1 Sept: The EI library in London is temporarily closed to the public, as a precautionary measure in light of the ongoing COVID-19 situation. The Knowledge Service will still be answering email queries via email , or via live chats during working hours (09:15-17:00 GMT). Our e-library is always open for members here: eLibrary , for full-text access to over 200 e-books and millions of articles. Thank you for your patience.
T Osborne, Lung-like propulsion drives British Long-Endurance UAV, Aviation Week & Space Technology, 20 May - 2 June 2019, p 34
In UK, several universities and small businesses have jointly produced the Phoenix, an inflatable high-altitude-pseudo-satellite (HAPS) aircraft that proceeds by porpoising through the inflation/compression and ejection of air in conjunction with an inflatable bag incorporated within the helium container in the envelope. Batteries are charged by solar cells fitted to the carbon-fibre wings, and the fuel cells to provide back-up power can be reversed to recharge the hydrogen onboard to replace the helium. Theoretically, the platform could stay aloft for an unlimited period.
Abstract details
Journal title: Aviation Week & Space Technology
Keywords: 4 Propulsion - 4.4 Fuel cell vehicles
Subjects: Aircraft Operation, Fuel cells
