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Sailonline manual
ManualBack to Snip <-- Previous Change | Next Change -->
Diff Summary | |||||
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Title | |||||
Date | 2007-12-20 07:59:57 | 2007-12-20 08:00:39 | |||
Editor | jakob | jakob | |||
Tags |
2007-12-20 07:59:57 by jakob | 2007-12-20 08:00:39 by jakob | ||||
---|---|---|---|---|---|
25 | ---------- | 25 | ---------- | ||
26 | The basic way of steering is to either set at cons | 26 | The basic way of steering is to either set at cons | ||
> | tant compass course (CC) which simply means that t | > | tant compass course (CC) which simply means that t | ||
> | he boat will go in a "straight line". The other st | > | he boat will go in a "straight line". The other st | ||
> | eering mode is to set up the boat to keep a consta | > | eering mode is to set up the boat to keep a consta | ||
> | nt angle to the wind, to keep the true-wind-angle | > | nt angle to the wind, to keep the true-wind-angle | ||
> | (TWA) constant. This means that if the wind change | > | (TWA) constant. This means that if the wind change | ||
> | s in direction, the boat will change its heading t | > | s in direction, the boat will change its heading t | ||
> | o maintain the wanted TWA. You can set any TWA in | > | o maintain the wanted TWA. You can set any TWA in | ||
> | the range from 0 to 180 degrees where TWA=0 means | > | the range from 0 to 180 degrees where TWA=0 means | ||
> | that the wind comes from straight ahead, TWA=180 m | > | that the wind comes from straight ahead, TWA=180 m | ||
> | eans that the wind comes from behind and TWA=90 me | > | eans that the wind comes from behind and TWA=90 me | ||
> | ans the wind in from starboard side. Negative TWA | > | ans the wind in from starboard side. Negative TWA | ||
> | means wind in from port side (port=left). You can | > | means wind in from port side (port=left). You can | ||
> | choose to steer directly or to delay the effects o | > | choose to steer directly or to delay the effects o | ||
> | f a command by the use of delayed commands. You si | > | f a command by the use of delayed commands. You si | ||
> | mply set up the steering as described above and th | > | mply set up the steering as described above and th | ||
> | en state how many hours the command should be dela | > | en state how many hours the command should be dela | ||
> | yed. Delayed commands is a neat feature that lets | > | yed. Delayed commands is a neat feature that lets | ||
> | you attend business meetings and wedding dinners w | > | you attend business meetings and wedding dinners w | ||
> | hile helming a 60-foot single handed catamaran in | > | hile helming a 60-foot single handed catamaran in | ||
> | a full gale! | > | a full gale! | ||
27 | 27 | ||||
28 | The chart and the race bounds | 28 | The chart and the race bounds | ||
29 | ------------------------------- | 29 | ------------------------------- | ||
t | 30 | The shorelines are supplied by the US National Geo | t | 30 | The shorelines are supplied by the US National Geo |
> | physical Data Center (NGDC). Resolution may vary d | > | physical Data Center (NGDC). Resolution may vary d | ||
> | epedending on the race type. Important to notice i | > | epedending on the race type. Important to notice i | ||
> | s that what you see is what there is. Be aware of | > | s that what you see is what there is. Be aware of | ||
> | small islands but all water is deep and sailable. | > | small islands but all water is deep and sailable. | ||
> | Your boat can naturally only sail on water. If you | > | Your boat can naturally only sail on water. If you | ||
> | collide with land the boat will stop, be pulled o | > | collide with land the boat will stop, be pulled o | ||
> | ut from the coastline some distance and be somewha | > | ut from the coastline some distance and be somewha | ||
> | t damaged. The damage is expressed as a certain dr | > | t damaged. The damage is expressed as a certain dr | ||
> | op in boat speed (performance). This loss in perfo | > | op in boat speed (performance). This loss in perfo | ||
> | rmance is temporary and will vanish in a number of | > | rmance is temporary and will vanish in a number of | ||
> | hours. Since the boat has stopped you need to sen | > | hours. Since the boat has stopped you need to sen | ||
> | d a new command to set the boat on a new course. D | > | d a new command to set the boat on a new course. D | ||
> | ue to the implementation on the server, a boat may | > | ue to the implementation on the server, a boat may | ||
> | actually cut a little land corner at special occa | > | actually cut a little land corner at special occa | ||
> | sions. It can happen to all boats but is nothing t | > | sions. It can happen to all boats but is nothing t | ||
> | o calculate on. | > | o calculate on. | ||
31 | 31 | ||||
32 | The boat performance curves | 32 | The boat performance curves | ||
33 | ---------------------------- | 33 | ---------------------------- | ||
34 | The boat performance is expressed in the so called | 34 | The boat performance is expressed in the so called | ||
> | polar curve, which is visible to you. The polar c | > | polar curve, which is visible to you. The polar c | ||
> | urve state the boat speed as a function of wind sp | > | urve state the boat speed as a function of wind sp | ||
> | eed and TWA. Take time and study the plot to learn | > | eed and TWA. Take time and study the plot to learn | ||
> | how to sail the boat efficiently. Different wind | > | how to sail the boat efficiently. Different wind | ||
> | speeds are shown with different colored curves. Fo | > | speeds are shown with different colored curves. Fo | ||
> | r a certain wind speed follow the corresponding co | > | r a certain wind speed follow the corresponding co | ||
> | lored curve for all various TWA:s around the boat. | > | lored curve for all various TWA:s around the boat. | ||
> | For a certain wind speed and TWA you can read the | > | For a certain wind speed and TWA you can read the | ||
> | corresponding boat speed as represented by the di | > | corresponding boat speed as represented by the di | ||
> | stance from the origin to the colored curve. The p | > | stance from the origin to the colored curve. The p | ||
> | lot does not differ negative from positive TWAs si | > | lot does not differ negative from positive TWAs si | ||
> | nce our boats are symmetric. Your boat gets the po | > | nce our boats are symmetric. Your boat gets the po | ||
> | lar curve boat speed (=100% performance in the pol | > | lar curve boat speed (=100% performance in the pol | ||
> | ar window) at all times unless you have hit land a | > | ar window) at all times unless you have hit land a | ||
> | nd your boat has some level of damage. | > | nd your boat has some level of damage. | ||
35 | 35 |
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Welcome to the third and last online race of the Raja Muda Selangor International offshore series – a 70nm final trip further north again up the Malacca Strait from Penang to the exotic island of Langkawi, and again in Ker 40s.
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Sailonline is delighted to be able to offer online sailors an opportunity to once again compete in all three of the offshore races of the Raja Muda Selangor International race week, organised by the Royal Selangor Yacht Club in association with the RORC, and commencing with the 75nm trip from Port Klang to Pangkor. This year we will be racing this race, and the other two, which together will count towards our Sailonline Raja Muda Series (RMS) in Ker 40s.
Race #1869
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Nassau to Bodo 2024
PRIZE: SMPF
Race# 1866
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Swan 65 PARTICULARS
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