The only difference between deck and other military aviations consists of that airplanes of a deck aviation take off from ships and land on them. Such landings are very difficult because of weather frequent changes, strong wind, therewith there are only few or not at all finding-position orientations under the water. A deck pilot must have a perfect sense of espace: a sea wouldn't forgive any
mistake. "Deckers" use special modified airplanes. The shipborne fighter SU-33 (SU-27K) was added to the Russian armoury more than 10 years ago. The airplane is single-seater, it may be refueled in the air and can surely withstand modern enemies' forces. Its takeoff is realized from a special springboard, and when the aircraft lands its hook catches a line of a road finisher.