I am currently working on a Hasegawa 1/48 F-4B/N. I thought I would try some of the Aires burner cans because they look much better than the Hasegawa items. Well I dry fit them to the hole and they seem to fall rght inside the model. They seem to be too small in diameter to fit the kit without increasing their diameter or shrinking the size the engine opening. Has anyone else got experience with these? I did create some internal structure in side the fuselage to hold them in place but they just look too small. Any comments appreciated.