Count Carl Gustaf Ericsson von Rosen was a Swedish pioneer aviator, humanitarian, and mercenary pilot. He flew relief missions in a number of conflicts as well as combat missions for Finland and Biafra. His flights for the Biafran Air Force were notable for using the small Malmö MFI-9 in a ground attack role.

The Malmö Flygindustri MFI-9 Junior was a light aircraft produced in Sweden in the 1960s. The aircraft was also produced under licence in West Germany as the Bölkow Bo 208.