RedactedNarrative: UNIT 1 AND UNIT 2 SOUTHBOUND APPROACHING MAIN CHANNEL MISSISSIPPI RIVER NO-WAKE ZONE. UNIT 1 BEHIND UNIT 2. UNIT 2 SLOWS DOWN. UNIT 1 CONTINUES AT A HIGH RATE OF SPEED AND COLLIDES WITH BACK OF UNIT 2, RAMPS OVER UNIT 2, COMES TO REST ON PORT SIDE OF UNIT 2 WITH OUTBOARD MOTOR STILL IN UNIT 2