this photo was taken on the flight deck on USS Abraham Licoln... behind the exhausts of the F-18s is the catapault launching system. there'll be a better photo that may catch the catapault system later ^_^ .... the various insignias (symbols on the tails on the aircraft) represent the various squadrons and as u can see the f-18s wings are folded upwards for storage ease. ^_^ CHOCKS IN!!! which apparently seems to be the same as our piper warrior chocks... wood and simple design. gets the job done i guess.