Vertical Distribution of Depth

As alluded to earlier, a sail designer needs to think about how exactly the camber is to be distributed throughout the sail. At first glance one would assume that the camber is evenly distributed from head to foot, but that is not the case. As a general rule, sails have more depth at the head and less at the foot. In order to fully understand this design requirement, we need to take a closer look at yet another significant detail that comes into play when a boat is sailing, a phenomenon called "induced drag."

The wind attempts to get from the high pressure (windward side) to the low pressure (leeward side) by going over the top of the sail and under the boom causing induced drag.

Figure 6.6

The air flowing up and over and down and under combines with the natural flow to create spinning pockets of air called vortices, which detract from the amount of energy available to move the boat forward.

Figure 6.6

The air flowing up and over and down and under combines with the natural flow to create spinning pockets of air called vortices, which detract from the amount of energy available to move the boat forward.

Was this article helpful?

0 0
Boating Secrets Uncovered

Boating Secrets Uncovered

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.

Get My Free Ebook


Post a comment