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- Newsgroups: rec.windsurfing
- Path: sparky!uunet!haven.umd.edu!darwin.sura.net!mlb.semi.harris.com!sloth.mlb.semi.harris.com!pjp
- From: pjp@sloth.mlb.semi.harris.com (Pat J. Pinchera)
- Subject: Re: Question: Layline
- References: <1jnnc7$3gk@DIALix.oz.au>
- Date: Fri, 22 Jan 1993 12:59:14 GMT
- Nntp-Posting-Host: sloth.mlb.semi.harris.com
- Organization: Interface & Control Systems, Inc., Melbourne FL
- Sender: news@mlb.semi.harris.com
- Message-ID: <1993Jan22.125914.21168@mlb.semi.harris.com>
- Lines: 34
-
- In article <1jnnc7$3gk@DIALix.oz.au> atr@DIALix.oz.au (Australian Technology Resources) writes:
- >Hi there,
- >
- >can anybody out there in netland explain what a layline is,
- >and what they are used for?
- >
- >I think they have to do with approaching markers but I'd like to know more about them.
- >
- >Thanks a lot
- >Peter
-
- You are right, they have to do with approaching the mark. The best way I
- can describe a layline is with a picture:
-
- |
- | wind
- |
- V
-
- o windward mark
- / \
- / \
- port tack layline -> / \ <-starboard tack layline
- / \
- / \
- / <-90-> \ (90 degrees)
-
- When you sail upwind, close hauled (about 45 degrees from the wind),
- and you are on a course that will take you to the mark, then you are on the
- layline. Now, there are a whole ton of tactical reasons to get to the
- layline (or not get to the layline), but that is another discussion.
-
- Pat
- 'P19'
-