An aircraft fuselage training device for training fire fighters to use fuselage penetration fire extinguishing devices includes a mounting frame and an aircraft fuselage simulation frame mounted on the mounting frame. At least one fuselage skin section sheet is releasably mounted on the aircraft fuselage simulation frame and the fuselage skin section sheet and the aircraft fuselage simulation frame are cooperatively operative to generally simulate an aircraft fuselage whereby fuselage penetration fire extinguishing devices are usable to penetrate the fuselage skin section sheet for firefighter training purposes.