Checkmate Aviation produces and sells the CheckMate and CheckBook, laminated checklists, cards and instructional manuals that provide all the information needed to operate more than 300 models of airplane. It also offers a variety of other training and instructional aids, including radial calculators, survival and emergency manuals, and special instructions for flying in hazardous conditions. The CheckMate checklist system is highly endorsed by professional pilots and flying associations. Visit the website to view and order products.