 They flew a variety of World War I aircraft of the Blue Max collection owned by ex-RCAF pilot Lynn Garrison.Bach and Garrison first met when Bach wrote articles for "Avian", Garrison's aviation publication.Most of Bach's books involve flight in some way, from the early stories which are purely about flying aircraft, to "Stranger to the Ground", his first book, to his later works, in which he used flight as a philosophical metaphor.