<P> Certain evacuation slides do not use a slide bustle on the door as a container . Instead, the slide is "fuselage mounted" and is attached to a container located underneath or below the exit close to the aircraft exterior . This design of slide is found in the Airbus A321 aircraft at the emergency doors, and typically at all overwing evacuation slides other than the Boeing 747 - 400 series aircraft . </P> <P> One of the newest developments in evacuation slide technology can be found on the Airbus A380, which was developed by Goodrich Aircraft Interior Products . Certain slides on board the aircraft have the Tribrid Inflation System, which is connected to a sensing system within the door . If the door is opened in emergency mode at an abnormal attitude (e.g. nose up position due to the loss of landing gear), the slide will inflate normally but will also inflate several feet of additional slide to ensure the slide reaches the ground . This contrasts with the Boeing 747 as doors found on that aircraft have no such system; should the slide not reach the ground, the doors must be blocked to prevent passenger injury . </P> <P> Prior to departure (usually before engine startup), all the aircraft doors are placed into the armed (or automatic) mode by the cabin crew . Methods of arming vary from aircraft to aircraft, but ultimately the girt bar (a metal bar attached to the door end of the slide) is physically attached to brackets either in or adjacent to the door sill . On older aircraft, such as the Boeing 737, this is done physically by the cabin crew and on most other aircraft it involves pushing a lever on the door itself which arms the door internally . </P> <P> If a rapid evacuation is required and the doors are opened while "armed", the opening of the door pulls the slide pack out of the bustle (because the girt bar is physically attached to the aircraft floor). Due to the weight of both the door and the slide, great effort is involved in pushing the door open sufficiently to free the slide from the bustle, thus on larger aircraft a "power assist" function kicks in to aid the opening, either electrically or from compressed gas . Once the slide is completely free it will fall under gravity and after travelling a certain distance a pin will be pulled from a squib containing compressed gas and the slide will inflate . Should this system fail, the slide can be manually inflated by the cabin crew by pulling a manual inflation handle at the top of the slide . Should this also fail, standard operating procedures require the cabin crew to send passengers away from the door and to one that has a functioning escape slide . </P>

List the names of slide raft manufacturers for airbus and boeing aircraft's