A yacht should never be underway without the anchor tightly stowed and a windlass should only be used for lowering and raising the chain and anchor. A device other than the windlass is therefore required to hold the anchor snug when it is stowed.
Boat designers and builders also asked if Maxwell could incorporate a tensioning device into the chain stopper and the Roller-Stopper units. Thus were born the Stopper-Tensioner and Roller-Stopper-Tensioner units. The RST became an instant success giving the boat builder a unit that he could simply bolt to the deck in front of the windlass and have a completely integrated system allowing safe and easy handling of anchor deployment and retrieval with any side pocket anchor installation.