Beginning in 1998, Crouch has served as the Senior Curator of the Division of Aeronautics at the National Air and Space Museum. A Smithsonian employee since 1974, he has served both the National Air and Space Museum (NASM) and the National Museum of American History (NMAH) in curatorial and administrative posts. (1973-1974).He is the author or editor of more than 18 books and over 100 articles for both popular magazines and scholarly journals. Most of his work has been on aspects of the history of flight and flight technology. Crouch has won a number of major writing awards including: the history book prizes offered by both the American Institute of Aeronautics and Astronautics and the Aviation/Space Writers Association; the Christopher Award (1989)for The Bishop's Boys: A Life of Wilbur and Orville Wright; the Gardner-Lasser Literature Prize, 2005; and the AIAA for Wings: A History of Aviation From Kites to the Space Age.