turboshaft said:Groen (teamed with Georgia Tech) was one of the non-selected bidders for the CDA phase (along with Carter and Modus)
The mention of Modus sent me to my "Looney" files, and I found this postcard from the early 1990s. On the back are two web addresses. Not surprisingly, the www.verticraft.com website does not work, but www.yoshine.com still does.