Operator advised he and his wife were launching V1 at Heber Marina.  The wife was backing V1 into the water (still on trailer) with their truck; and being unfamiliar with the truck she backed down the ramp faster than she meant to.  Operator stated he did not realize V1 was already unhooked from the trailer when his wife backed in and V1 came off the trailer into the water and began getting away from him.  Operator swam after V1 and was able to reach it; just as he did another vessel came by pulling a tube causing huge wakes that swamped V1 and capsized it.  As it capsized the operator was trapped underneath for a brief period but managed to free himself and swim back to shore.  V1 was retrieved and loaded back onto trailer and taken back to operator/owner's residence.
HEBER SPRINGS                 