air force military aircrafts 558 aircraft construction 403 history 302 helicopters 115 military training 41 military operations 36 more ... fighter aircrafts 32 air transport 21 navy 21 airliners 19 aircraft engines 18 military transport 17 reconnaissance 16 combat activity of air forces 15 innovation 13 air defence troops 12 bezpilotní letadla 10 bombers 10 military airports 10 flight control 10 supersonic aircrafts 9 military defence 8 aircrafts 7 tankers 7 military history 7 bombing 6 accidents 6 sea ships 6 military technology 6 less ...