The Bombardier facing seat is a four-place, back-to-back seating system. Two adjoining seats share a common seat back interface with two adjoining seats in the opposite direction. One fourplace seating system consists of a welded aluminumbase frame (see Figure 1) and pre-assembled fiber-reinforced thermoplastic seat pan/back structures (see Figure 2). Each single seat pan/back structure is bolted to its adjoining seat pan/backstructure through a u-shaped aluminum bracket. The tops of the seat backs are directly bolted together near the grab handles at the top of the seats. The resulting two-place, back-to-back seat is bolted to the aluminum base frame next to another two-place seat pan/back structure. A thermoplastic armrest is bolted between the two seats. The aluminum base frame consists of square tubing and angle tubing, which is bolted together to form the seat pan base frame and the pedestal. One end of the frame is bolted through two aluminum brackets to the sidewall, and, near the other end, the pedestal is bolted to the floor. Threaded bolts are used to attach the thermoplastic parts togetherand also attach those parts to the aluminum frame. Thermoplastic shrouds cover the base frame and pedestal for aesthetic purposes. Figure 3 shows the assembled seats mounted on Simula’s dynamic test sled with ATDs seated in the forward-facing seat.
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