A320 Escape Slide
The A318/A319/A320iA321 evacuation slide system is designed to provide a reliable and efficient means of rapid egress from the aircraft to the ground in case of emergency
NOTE: See Figures 1, 2 and 3 for typical Evacuation Slide System.
A. The A318/A319/A320/A321 evacuation slide system is designed to provide a reliable and efficient means of rapid egress from the aircraft to the ground in case of emergency. The basic design for the forward and aft evacuation slide systems are identical. The major subsystems
include an inflatable slide assembly, a stored gas reservoir and valve inflation assembly, a composite construction packboard, and a light weight composite decorative hard cover. The evacuation slide system conforms to FAA TSO-C69a.
B. The single lane inflatable is an uncomplicated though efficient rectangular structure formed by a pair of longitudinal body tubes connected by mitered intersections to the sill and runway tubes. Supplemental support tubes at the sill end provide the required contact area at the
fuselage interface. Additional structural members are limited to an intermediate cross tube which minimizes body tube twist or "roll" motions under load to prevent the sliding lane from being formed into a trough which would adversely affect the evacuation rate. The sliding
surface or "floor" of the slide is attached as a taut membrane to the longitudinal tubes transitionally from atop, to somewhat between, to again atop, the tubes along the length of the slide. This composite tube/floor structure can handle up to four evacuees at one time without collapsing. The excellent puncture and abrasion resistance of the highstrength sliding surface fabric make the probability remote for penetration of the airholding chamber by evacuee footwear or other sharp objects
Approximately the lower one-fourth of the slide body is curved to form a "hook' contour for the angle of the sliding surface at the runway end. This transition supplements the braking action of the urethane-coated deceleration panel at the runway end.
The deceleration panel, coated with a durable high-friction elastomeric coating, provides positive deceleration to the evacuee and assures the evacuee is brought to an upright position and is able to walk off the slide.
Supplemental "vertical" tubes are attached to both ends of the sill tube to provide the required stability of the slide under 25 knot wind conditions. These tubes are contoured to match the curvature of the fuselage adjacent to the door opening.