Training based on competency is an increasingly popular approach in aviation. It allows for an alternative means of compliance with international regulations - which can result in shorter and more efficient training programs - however there are also challenges. Competency-Based Education in Aviation explores this approach to training, through interviews with aviation training experts, considering the four aviation professional groups of air traffic control, pilots, maintenance engineers, and cabin crew. Research-based and practical strategies for the effective creation, delivery, and assessment of competency-based education are described in detail.