I really want to know how to make a jet model in Autodesk Inventor
Did you mean the F-35? There is no F-25 aircraft when I search for one.
Y-yes. Sorry about that.
Ok. Best thing to do is look for an orthographic set of images of one. Basically top, front, sides, back, and bottom views of the aircraft. They would have to be direct in each view. The put those images on appropriate workplanes in inventor, depending on how you set up your orientation typically. They are inserted when you are in sketch mode. Once the images are in the appropriate work planes, you will want to scale them to the approximate size that the aircraft is. Best to look up some dimensions or see if there are already some 2D drawings of the aircraft. You can then start drawing 2D sketches over those images. Once you have completed that, let me know and I will gladly help guide you further.
i think its hard to find drawing 2D of military stuff like that, but ofcourse you can make model what you want with imagination..