By Glenn Pew for AVweb.com Boeing has flown a manned aircraft on hydrogen fuel cell power. The full text of Boeing’s release follows: MADRID, Spain, April 03, 2008 — Boeing [NYSE: BA] announced today that it has, for the first time in aviation history, flown a manned airplane powered by hydrogen fuel cells. The recent milestone is the work of an engineering team at Boeing Research & Technology Europe (BR&TE) in Madrid, with assistance from industry partners in Austria, France, Germany, Spain, the United Kingdom and the United States. “Boeing is actively working to develop new technologies for environmentally progressive aerospace products,” said Francisco Escarti, BR&TE’s managing director. “We are proud of our pioneering work during the past five years on the Fuel Cell Demonstrator Airplane project. It is a tangible example of how we are exploring future leaps in environmental performance, as well as a credit to the talents and innovative spirit of our team.” A fuel cell is an electrochemical device that converts hydrogen directly into electricity and heat with none of the products of combustion such as carbon dioxide. Other than heat, water is its only exhaust. A two-seat Dimona motor-glider with a 16.3 meter (53.5 foot) wingspan was used as the airframe. Built by Diamond Aircraft Industries of Austria, it was modified by BR&TE to include a Proton Exchange Membrane (PEM) fuel cell/lithium-ion battery hybrid system to power an electric motor coupled to a conventional …