OLATHE, KAN. – William Ralph Emery, 73, cofounder of K-C Aviation, and founder of Aviation Concepts, died August 7. Emery was born Nov. 5, 1941 in Dallas, Texas, and started out working at Executive Aircraft Service for his father, which was a division of Cooper Airmotive, which is now Aviall. K-C Aviation was later acquired by Gulfstream and today has locations in Olathe, Kansas; Chesterfield, Mo.; and Long Beach, Calif.