Mechanical Leverage
This article originally appeared in the December 2009 issueYour boomvang is a key tool for adjusting the shape of your mainsail. Sailing off the breeze without a vang, the pressure on your sail causes your boom to rise up, degrading sail shape. On small dinghies you sometimes dont need a boomvang as the mainsail may be small enough that you can control sail shape with mainsheet













