Pearson Boats - Common Systems > Standing & Running Rigging and Fitting/Tuning

Preventer? Vang? Anyone know what this is?

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Alma:
That strap is a vang, preventer and boom brake all in one. It does none of those tasks perfectly. A preventer prevents an accidental jibe which can clock someone on the head and also damage the rig. Your strap is too far forward on the boom to be an effective preventer and that is why it parted. Don't bet anyone's skull on that arrangement.

The Gaurhaler solid vang is a great solution to control the main, BUT a line rigged from the boom end to the bow is the only safe preventer.
I often set up a small "handy-billy" block and tackle, like a small mainsheet setup that used to be my old vang, back at the mainsheet bail on the boom. It is attached to a ring on a car on the jib sheet track. I resist the temptation to attach it to the stantion base... It keeps the boom secured when wind is light and flukey and folks are walking about the deck.

The "handy billy" is not a proper preventer.  When the wind pipes up I rig a proper preventer line or harden-up so there is no chance of an accidental jibe.

A solid vang will flatten the main when close hauled, support the boom when dropping the mainsail, and keep the sail from chafing on the aft lower shrouds when running. Although the traveler can help flatten the main- a vang flattens the main independent of the mainsheet. You will find many situations where this is seaworthy and faster.

You will have to remove and re-install the midships hatch turned 180 degrees facing aft to open the hatch with a solid vang installed. You will like an aft facing midships hatch because it is usable when spray would be coming into a forward facing hatch. At rest both hatches open provide cross flow ventilation.

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