Which control is used to spill extra pressure without losing pointing ability?

• A. Mainsheet
• B. Halyard
• C. Downhaul
• D. Vang

Answer: (D)

Depowering the mainsail without losing your point of sail comes from increasing the sail’s twist to spill wind from the top while you keep the boat’s course. The vang provides downward force on the boom, pulling it down and increasing twist in the mainsail. That causes the upper part of the sail to shed wind, reducing power, but you can still hold your angle to the wind with the mainsheet, so you stay pointed where you want to go. The other controls mainly adjust the sail’s angle or luff tension, which either changes power more broadly or doesn’t depower while preserving pointing as effectively.