Can't 'Member Anything
Premiere Rides opened Flight of Fear in 1996 at Kings Island and Kings Dominion, essentially a "ball of track at the end of a LIM launch." Disney bought a Vekoma clone, which we know today as RnRC.I think it was a custom layout made for Disney. Mainly because there's only one other version of this ride (as far as I know) and it came after RNRC. I think an off-the-shelf model would constitute something like an Arrow Corkscrew, which was all over the place.