You may get more knowledgeable responses to your inquiry by including
the rec.aviation.ultralight newsgroup.

Yeah, most of us on this site fly the dangerous 2, 4, and 6 seat
aircraft known to be the preferred weapons of terrorists all over the
world because of their hefty loads in excess of 500 lbs and high
speeds over 100 mph. You know, the ones everybody in D.C. (and
Chicago Mayor Daley's office) are deathly afraid of.