MS of observation plane, pilot getting in as camera operator prepares for take off in back cockpit. MS side view of air crew starting engine, plane taxiing off. AIR TO AIR LS of plane executing aerobatics. Shot of ground taken from stunting plane. Various shots of BE2 and Farman aircrafts taxiing, landing, taking off, flying past camera. Interior HAMS PANs showing men assembling aircrafts parts, examining engines, working on lathes. AIR TO AIR LS of BE2 aircraft flying in front of camera plane, including extensive AERIAL SHOTs of fields, roads, buildings on ground below.