IBPDMS emerged as the RIM-7H, which was essentially the RIM-7A with the mid-mounted wings modified to be able to fold. This was done in a fashion similar to carrier-based aircraft; the wings were hinged at a point about 50% along the span, with the outer portions rotated back toward the body of the missile. This allowed them to be stored in tighter container tubes in the new Mark 29 launcher, and flip open automatically when they were released from the tube.