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Hi,
a Germany designer,Franz Philipp,he invented many solar-powered airplane and flying
disc Projects,has anyone a drawings or more Info about his activities ?.
http://www.liquisearch.com/list_of_military_aircraft_of_germany_by_manufacturer/philipp_franz
a Germany designer,Franz Philipp,he invented many solar-powered airplane and flying
disc Projects,has anyone a drawings or more Info about his activities ?.
Philipp FRALI Series 1-6 Sonnenstrahl (Sun Ray) solar-powered aircraft projects and rockets 1934-1938
Philipp Greif (Griffon) Solar-powered disc aircraft project
Philipp Sonnenflieger (Sun Flyer) solar-powered disc aircraft project, 1938
http://www.liquisearch.com/list_of_military_aircraft_of_germany_by_manufacturer/philipp_franz