Invisible ledge: Go to the burning truck. Look at the plane next to it. Jump at the bottom edge of the plane and you will be on an invisible ledge. Run up to other end of the plane and you will be standing on thin air about 10 feet off of the ground.

On Plane 1: Jump on white box truck or climb the wingstub next to it onto window. If you climbed the truck, jump onto the side of the plane (you may fall onto the window ledges, that is fine) work your way right, but if you go to far past the third window you will fall (just start over). So, after you get past the third window, move slightly further right and then hold that spot while trying to jump forward. You should get up top and be able to run across them all.

On Plane 2: Find the rusty reddish plane with a few engine parts near one end. Jump onto the engine part at the end of the plane and then onto the edge of the plane. It can go quick or be a pain, but you can get up from there.