You cant. FSX has default carriers around there is one in Sanfransico bay i believe but it is stationary. You can use I believe carriertracks1and2.zip which i believe has saved flights fianl to a moving ai carrier, you simply land than set up for cat shot. You also need uss_nimitz_ike_version2.zip, has more realistic carriers than default. or aicar2r2.zip, allows you to set up carriers in front of you than tell them to move. Google is you friend, except when its spying on you.