success 6940 Portland State Aerospace Society 2007-07-28T09:30:31Z 2009-12-17T04:50:28Z The Portland State Aerospace Society (PSAS) designs and builds open source rockets featuring highly advanced Linux-based avionics systems. http://psas.pdx.edu psas 7 5.0 2 794893 794893 6940 2009-12-20T05:14:02Z 2009-12-20T05:12:24Z 1999-09-01T00:00:00Z 2009-12-01T00:00:00Z 5 85255 7 C/C++ gpl GNU General Public License 2.0