Courtesy Aircraft

Professional Aircraft Brokers



Courtesy Aircraft Sales

We assist aircraft sellers and buyers nationwide.

Professional Aircraft Brokers

Our History


Courtesy Aircraft, Inc. was founded in 1957, by D.M. Clark, as a new Cessna aircraft dealer, and grew through the 60’s to include Piper and Champion (Citabria) dealerships. In addition, Courtesy Aircraft, Inc. was active in the sales of select used aircraft. It was in the success of the used aircraft market that pointed the way to the firm’s current position as a world leader in quality warbird and civilian aircraft sales. In the early 70’s, due to the knowledge and enthusiasm of the founder’s son, Mark Clark, today an accomplished pilot and A&P mechanic, Courtesy Aircraft, Inc. found itself heavily involved in sales of a new market – Warbirds. This market consisted primarily of World War II and Korean era ex-military trainers, fighters, and bombers such as the T-6/SNJ Texans, P-51 Mustangs, and B-25 Mitchells. In the early 80’s, Mark purchased the company from his father and relocated to a 13,000 square foot facility conveniently located at the Greater Rockford Airport in Rockford, Illinois. The business continued to prosper and another new market began to emerge. In 2009, Darcy Kaapke joined the company as Marketing Director and Aircraft Saleswomen focusing on Beech T-34 Aircraft, Stearmans, BirdDogs and a variety of Civilian General Aviation aircraft. Kathi Spencer, Courtesy’s Office Manager, has been with the company for over 20 years. She focuses on keeping the office running, day-to-day accounting, aircraft lien research and orders, and filing all FAA documentation for aircraft sold. 

Courtesy Aircraft’s goal is to keep all aircraft transactions as smooth as possible. Highlights of our services include: 1) Qualify the customer for the aircraft. We consider the level of pilot experience & price range. 2) Daily involvement the aircraft market allows Courtesy to understand current market forces and advise options available to both buyers and sellers. -3)Knowledgeable. Answer technical questions on aircraft. 4)Arrange training and checkouts for the aircraft. 5) Suggest mechanics and shops, and 6) Research and file all appropriate paperwork with the FAA.

With thousands of aircraft sold and delivered, we are extremely proud of our longevity and accomplishments and look forward to continuing our tradition of excellence in the sales of both warbirds and civilian aircraft for years to come.

Countdown to EAA's AirVenture in Oshkosh, WI! We look forward to seeing you there in the Warbird Area!