Abstract: A stowable seat for mounting to a support member of a vehicle and for use next to a preexisting obstruction wherein a space may be selectively provided for positioning a wheelchair article adjacent to the stowed seat which includes a frame attached to the support member (floor), a cantilevered seatbase and a seatback. The cantilevered seatbase has a free end, a linked end associated along a path generated arc with the frame for providing the seatbase with a range of motion that avoids the obstruction even when moved from a horizontally deployed position to a substantially vertical stowed position. For additional stability a diagonal support truss supports the seatbase in the deployed position with a movable end of the support truss sliding within a runner track and a fixed end journalled with the frame working in combination with said linked end defining the vertical and lateral motion of the seatbase.