What is VMC sailing?

VMC is the Velocity Made good on Course. i.e. Speed in the direction of the mark. VMG is the Velocity Made Good i.e. Speed in the upwind of downwind direction. Some manufacturers don’t bother with us sailors and some manufacturers do but don’t use VMC .

What does VMG mean in sailing?

Velocity made good, or VMG, is a term used in sailing, especially in yacht racing, indicating the speed of a sailboat towards (or from) the direction of the wind.

What is the fastest direction to sail?

Beam Reach – This is the fastest and easiest point of sail. The wind is on the side of your boat (beam) and you’ll sail with your sails out half way. Broad Reach – On a broad reach you’ll be heading a bit further downwind, so you will have to let your sails out a bit more.

How is VMG calculated?

I plugged the numbers into this formula: (Boat speed at 8 degrees above dead downwind) x COS (the degrees above dead downwind) = VMG: 4.2 x COS (8) = 4.16 (VMG) (Boatspeed at 30 degrees above dead downwind) x COS (30) = VMG: 5.2 x COS (30) = 4.5 (VMG).

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What are the five points of sail?

Five Essentials of Sailing

  • Balance – side to side balance. Keeping the boat, starboard and port, level i.e. not letting it tip. …
  • Boat Trim – fore and aft boat pitch. …
  • Sail Setting – setting of sails relative to the wind. …
  • Centreboard – the position of the centreboard. …
  • Course made good – choosing the most appropriate course.

What do grinders do on America’s Cup boats?

A grinder is a crew member on a yacht whose duties include operating manual winches (called “coffee grinders”) that raise and trim the sails and move the boom. … The AC50 class yachts used in the America’s Cup competition have four positions (on each side) for grinders.

What does VMG stand for Target?

written by Allan Haeger. In this post we discuss Velocity Made Good or VMG. Many newer sailors are not familiar with this important concept, so we’ll discuss the definition and show some examples. Then we’ll discuss how to use the concept of target boat speed to maximize your VMG.

What is the slowest point of sail?

Running downwind is generally considered the slowest point of sail. Remember that the sails are trimmed differently for each point of sail.

Can a sailboat sail faster than the wind?

Yes, although it sounds implausible. With the wind blowing from behind and sails perpendicular to the wind, a boat accelerates. The wind speed on the sail is the difference between the vessel’s forward speed and that of the wind. … So, with clever streamlined hull designs a boat can sail faster than the wind.

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Can a sailboat exceed hull speed?

It doesn’t break any rules to go faster than hull speed. If you push beyond the speed limit, the wavelength gets longer than your boat length. No law against that. At this point, most boats start to surf on their own bow wave; nothing wrong with that.

What does VMG stand for in school?

Vertical Mentoring Groups. A VMG is a Vertical Mentor Group which includes students from Year 7 through to Year 11; students have a 15-minute session every day with their VMG Mentor.

How do you calculate apparent wind?

For example, if the apparent wind is 20 knots and the boat is going 6.2 knots at 45 degrees to the true wind then the true wind is 20 – 6.2 + 1.2 = 15 knots. The calculator says 15.1, which is close enough. (I used True Wind Speed = Apparent Wind Speed – Boat Speed + .

What is the best wind for sailing?

The ideal wind speeds for sailing are:

  • most comfortable sailing: 5 – 12 knots.
  • absolute beginners: under 10 knots – anything under 10 knots prevents capsizing.
  • for more serious training: 15 – 20 knots.
  • for heavy offshore boats: 20 – 25 knots – anything under 12 and the boat doesn’t even come to life.

Is a ketch harder to sail than a sloop?

A sloop is generally faster and sails closer to the wind. Sloops have fewer sails than ketches to buy and maintain. With a sloop, there is less standing and running rigging with one mast, which means there is less to manage and maintain overall.

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Is it faster to sail upwind or downwind?

Sailboats can sail directly downwind, but not directly downwind faster than the wind. To sail upwind, or to sail downwind faster than the wind they tack at a substantial angle to the wind, typically greater than 20 degrees.

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