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Date	2007-12-20 07:59:57	2007-12-20 08:00:39
Editor	jakob	jakob
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	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

Races

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Melbourne to Osaka Prelude 2024

Welcome once again to what these days is Sailonline’s almost annual virtual Melbourne to Osaka Yacht Race. In real life, this double-handed 5500 nm race between these two sister cities, one deep in the southern hemisphere, the other high in the northern hemisphere, is run every four to five years, and is planned to be held again in 2025, so this race is a Prelude in partnership with the Melbourne Osaka Cup 2025 organising committee collaborating with the Ocean Racing Club of Victoria (ORCV), and the Sandringham (SYC) and Osaka Hokko (OHYC) yacht clubs. On this occasion, we’ll be racing the well-known First 40, a popular size of boat for a long-distance double-handed race. With the doldrums unavoidably lying across the track, you can expect to be at virtual sea for at least a month!
Race #1669
INFO by brainaid.de
First 40 Particulars
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
Race starts: Apr 20th 00:00 Registration Open!

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St Nazaire Chasse TIMED Race 2024

Welcome to a "chasse" (hunt) from St. Nazaire to La Baule on the west coast of France! This race was designed by SOLer FR_flouflou in 2010. The KER 40 was introduced to SOL in 2016 by SOLer psail, and the Sol-KER was a welcome addition to SOL’s fleet of 40- footers, as it was to the IRL Ker fleet of eponymous - like KERonimo, KukuKERchu and Ice BreaKER. This is a TIMEDrace, so you may RE-REGISTER HERE to try again, after finishing a run. You will have 13 days and 11 hours to show your skill and decision making after the race opens.
Race #1797
INFOby brainaid.de
Ker 40 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
TRQ2 - TRCH - SUPSOL - SYC
RACE CLOSE: Saturday,
27 April at 23:00 UTC
Race starts: Apr 14th 12:00 Registration Open!

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The Beagle in the Straits of Magellan 2024

Both before and after visiting the Falkland Islands, the Beagle extensively explored the south eastern coast of South America, hither and thither, from north of the Rio Plate to the tip of Tierra del Fuego, but it was not till the end of June 1834 that the ship made it into the Pacific Ocean, transiting via the Straits of Magellan. Online in 2024, the choice is yours - passage the strait or round the cape; 400nm or more in your Class B Tall Ship.
Race #1753
INFOby brainaid.de
Tall Ship Class B PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SVF - SYC
Race starts: Apr 09th 13:00 Registration Closed

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Cape Town to Auckland 2024

Welcome to the second leg of this Round The World series 2024. It's also the April edition of this year's ocean race championship. The course is the same as the one sailed in 2023, but this year we sail the iconic Swan 65, as suggested in the concluding RTW race last year.
Prepare yourselves for an epic 30-day journey, navigating through the unpredictable waters of the South Seas. It's essential to take care of provisioning to ensure a smooth and enjoyable race experience. With the longer duration, we anticipate plenty of opportunities for camaraderie, competition, and unforgettable memories.
PRIZE: SMPF
Race# 1789
INFO from brainaid.de
Swan 65 PARTICULARS
WX updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ2 - RTW - OCCH - SUPSOL - SYC
Race starts: Apr 01st 11:00 Registration Closed

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