Vessel 1 was at the dock located at the Butler St boat ramp in Astor. 
Vessel 2 was being launched at the Butler St boat ramp in Astor and was still attached to truck and trailer. 
Vessel 1 left the dock and continued forward striking vessel 2 in the rear right. Vessel 1 continued between vessel 2 and the dock, beached on the boat ramp, and struck the vehicle which was pulling vessel 2. 

See attached photos and diagram.
ST JOHNS RIVER
ASTOR                         