|Fred Harl and Carmelo Turdo|
The most common model, the L-39C, was the principle jet trainer and light attack aircraft of the then Warsaw Pact Eastern European countries. It was developed by the Czechoslovakian company Aero Vodochody as a successor to its own L-29 Delfin in the late 1960s. The company has continued to flourish in the post Cold-War Era, and now produces the follow-on L-39NG, L-159, and major subassemblies for other aircraft manufacturers. Current examples seen here are owned and operated by the Red Jet Foundation, the Warbird Heritage Foundation and private owners.