The atf challenge is a challenge in which you are designing a fighter to match the the yf-23 and yf-22 prototypes. The challenge will run until July 14, 2016,so try to complete yout air craft in a timley manner. The aircraft can be constructed in two paint jobs: modern U.S air force style or in classic prototype. Here are the requirements: Must have functioning bay doors, Must have at least four of each type of missles, Must have a gun, Must look like a stealth fighter, Must have at least one jet engine, and finally Must be able to go 450+ mph. OPTIONS: Xml modding: yes. Non bay door missles: yes. VTOL: yes (extra points!) Thrust vectoring: (also extra points!) Drop tanks: yes. Judging will be based on performance, detail,weapon capacity function,(and most importantly) Creativity! Upvote to enter and make sure to tag me in your build. 2fast signing off