Doyle Sailmakers was the first to incorporate a boom cover into a lazy jack system, an idea that quickly caught on and has been copied by a number of other sailmakers. The object is twofold: The sides of the boom cover act as an effective way of gathering and taming the reefed or lowered mainsail; and once the sail is completely down, the top of the Stackpack can be closed to serve as a boom cover. The beauty of this system is that once the sail is raised, the sides of the boom cover lie out of the way snugly up against the sides of the mainsail. As with lazy jacks, there is no upper limit to Stackpacks.
When at the mooring the mainsail drops into the Stackpack and the whole system stows neatly on the boom.
Was this article helpful?
If you're wanting to learn about boating. Then this may be the most important letter you'll ever read! You Are Going To Get An In-Depth Look At One Of The Most Remarkable Boating Guides There Is Available On The Market Today. It doesn't matter if you are just for the first time looking into going boating, this boating guide will get you on the right track to a fun filled experience.