Exnonrev From United States of America, joined Oct 1999, 621 posts, RR: 4
Reply 3, posted (14 years 2 months 3 weeks 9 hours ago) and read 910 times:
By "Yellowbird" you mean Northeast, which was acquired by Delta in 1972.
Purdue Airlines was a "supplemental" (charter) airline owned and operated by Purdue University. They ceased operations in the early '70s, I'm not sure exactly when. The DC-9 simulator and other remnants of the airline are still in use today by Purdue's outstanding aviation program.