Well, could you describe what you DO know and what you have right now? What is the goal of the animation? Do you have a model of the plane, backgrounds airfield etc? Do you have a script? Soryboard? What kind of rendering resouces do you have? What kind of animation do you need it to be? How many working hours do you have? Budget constraints? Do you need to match live views?
2-3 minutes is a very long animation for your first ever task. In general its optimistically calcualted thet it takes about a week per minute to animate and about a month for setup for moderately simple stuff at full time working and with people who know what they are doing (OTOH they also are in this for the long haul).
Consider that 3 minutes is 3 minutes*60*seconds * 24-30 fps = 4320 - 5400 frames. If you have a 1 minute render budget per frame that means 90 hours rendering tripple that for safety margin (because if its your first project you will likely screw up at some point). Which means unless you render early you need to save about 11-12 ddays just for rendering + 1-2 days for comp and 1 day for final media output. So thats about 2 weeks of purely technical stuff. so thet means you have 1 week to spare for pre production work IF you work all weekends. Ofcourse if you need to do any sound or narration that will eat your time budget.
Id say your going to be in a very tight deadline. IF you dont have models and scenery consider buying the stuff from somebody if your buget allows. Consider making the animations goals as simple as possible this can cut down your animation time to half or 1/3. Offcourse if its too simple then your not going to be able to captivate your audience for more than 15 seconds. You also need to buget time for any sound thet you might neeed and so on. Consider closer to 2 minutes than 3
PS: in general it takes about 1 year to learn to really use maya at basic level.
PPS: read the forum rules. One post per topic and dont go adding same question to be part of other topics. They will be deleted!