Abstract: A device for assisting one-man launching of boats from boat trailers is provided. A tensioned rope is retained and secured within a reel attached to a boat trailer or other location. In use, the tensioned rope is secured to the trailered boat and retains the boat after the boat is floated free of its trailer. The reel may be removably secured to a number of locations to enable a multiple of uses such as a boat attached line for towing a bait container or sea anchor. The invention includes a trailer having a tensioned rope to allow automatic controlled release of a boat during launch.