NOTICE TEXTE n° 1 (50.66 Ko) 
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Armchair Guide to the America's Cup
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A new course is set
THE America's Cup is the most demanding yacht race in the world. This time it
is even more difficult because it is being staged in a new location, with
different conditions, and a modified course that creates more close quarters
manoeuvring. See map pages 22-23.
Armchair yachtsmen will soon appreciate these course changes, which put
more pressure on yachts and crews, and make it harder to break away.
The traditional 24.3 nautical mile course used at Newport, Rhode Island,
had 4.5 nautical mile legs. To increase the competitive aspect of the America's
Cup, the Royal Perth Yacht Club has shortened these legs to 3.25 nautical
miles, creating more mark roundings. This makes a tougher test for yachts and
crews, and provides more close-quarters action at the buoys for spectators.
This course really tests the manoeuvrability of the modern 12 metre yachts.
It also puts greater emphasis on precision crew work, which is essential to
shave those vital seconds in tacks, gybes, sail trimming and spinnaker work.
One advantage Perth has over Newport is excellent summer visibility. Low
lying cloud and fogs are unknown in summer. This means viewing conditions for
the spectator fleet and for those at home around the world watching television,
will be unparalleled in the history of the event.
In the prevailing south west winds, racing will concentrate on an area
about 5 km off the coast. In easterly conditions, racing will extend towards
the mainland.
The weather conditions in Perth are ideal for the America's Cup. A Perth
summer is sunny and hot, with over 90 per cent of summer breezes coming from
the south west. Wind strength over the course area during the America's Cup
Match is forecast at 16 to 20 knots.
Spectators will appreciate that neither side of the America's Cup course
will be favoured in normal sea breeze conditions - a big change from the flukey
conditions experienced on Rhode Island Sound.
In Fremantle, it shouldn't matter which tack is favoured at the start in a
south west breeze, because wind shifts should be constant over a wide racing
area.
This makes the Fremantle course ideal for competitive 12 metre racing.
Foreign challengers and Australian defenders alike are pleased with the way the
course and conditions have opened up a new era of design possibilities.
Around the America's Cup course
THE strategy of yacht racing is to find the quickest path around the
America's Cup Course. Each skipper tacks and gybes his yacht to pick up
favourable wind shifts that increase boat speed through the water.
This constant changing of direction is an essential strategy to create
opportunities to get ahead.
On Legs 1, 3, 6 and 8 of the America's Cup course, this manoeuvring is
called tacking - when the bow of the yacht swings through the eye of the wind
as it changes direction. On these Legs, the yachts are going to the Windward
Mark.
On Legs 2, 4, 5 and 7 it is called gybing - when the yacht changes
direction with the wind coming from the side or behind. On these Legs the
yachts are going to the Leeward and Wing Marks.
The following is a quick guided tour around the course.
1st LEG - To the Windward Mark.
The pin end of Start Line (America's Cup Buoy) is laid at right angles to
the wind. In other words, from the Start to the first mark, the yachts have to
sail right into the wind. This is known as a beat to Windward.
2nd LEG - Back to Start Line Marker (America's Cup Buoy).
Having tacked round the Windward Mark, the yachts come back running
downwind, flying colourful spinnakers, constantly gybing to the left and right.
They return to the Leeward Mark (America's Cup Buoy).
3rd LEG - To the Windward Mark.
After gybing around the Leeward Mark they begin the second beat into the
wind to the same Windward Mark as on the first leg.
4th LEG - To the Wing Mark.
After tacking around the Windward Mark, the yachts go on a reach, with the
wind to the side, to the Wing Mark.
5th LEG - To the Start Line Marker (America's Cup Buoy).
They gybe around the Wing Mark and head on a reach, with the wind from the
side, to the America's Cup Buoy for the second time.
6th LEG - To the Windward Mark.
Gybe around the Start Line Marker and go on a third beat to the Windward
Mark.
7th LEG - To the Start Line Marker.
Tack around the Windward Mark and head back on a run downwind for the last
time to the Start Line Marker (America's Cup Buoy).
8th LEG - To the Finish.
Gybe around the Start Line Marker and go on the last beat to the Finish,
which is located at right angles to the wind. That now familiar Windward Mark
is one end of the Finish Line.
The dates
Defender Selection Trials
Series A - October 18-29
Series B - November 10-23
Series C - December 5-19
Series D - December 29 - January 10
Final - January 16-26
Challenger Elimination Series
Preliminary Series - October 5-20
1st Round Robin - November 2-19
2nd Round Robin - December 2-19
Semi Finals - December 28-January 7
Final - January 13-23
America's Cup Match
Best of 7 Races - January 31, 1987
[Map of course - see AmericasCupChallenge_Map.jpg]
Maps by Advanced Drafting Supplies - producers of the Official America's Cup
Map.
America's Cup Match Course Identification
Starboard (Green) Official Fleet
After the start the starboard fleet will proceed under escort within the
green zone and will hold station at picket boat stations P6 and P15 whilst the
yachts round the respective marks at R1 and R3.
Centre Fleet in Official Course area
Boat lengths restricted to 33m (110') except 4 vessels (to be advised)
under escort the official fleet will follow the yachts within the course area.
Official Fleet Port (Red)
After the start the port fleet will proceed under escort as follows: from
start to picket boat station P7 where they will hold station whilst the yachts
round the windward mark R1. They will then proceed downwind to picket boat
station P14 and hold while yachts round R3.
The fleet will then proceed to station P11 where they will hold station
until the yachts have rounded R1 (windward mark) and R2 (reaching mark) before
accompanying the yachts to station P14 after the yachts have rounded R3
(leeward mark) and heading for R1 (windward mark) the fleet will proceed in the
red zone to P7, back to P14 and finally to the finish line.
Yachting terms - what they all mean
THE America's Cup is the ultimate yacht race. It has captured the imagination
of people who like watching nations, yachts and individuals tussle in a race
every competitor has a realistic chance of winning.
The amazing thing about the America's Cup is that it is followed worldwide
by millions of people who know very little about sailing.
Your Armchair Guide to yachting language will make this great spectacle
easy to follow and very enjoyable. We hope the Guide lets you become an
armchair expert.
Glossary
Abeam: Anything abeam is straight out from either side of the yacht.
Aft: At the rear.
Astern: Behind the yacht.
Backstay: Wire that runs from the top of the mast to a point on the stern. Used
to tension the mast slightly backwards.
Bear away: Alter course away from wind.
Bearing: Direction the yacht is going.
Blanketing: Sailing between your opponent and the wind, giving him "dirty air"
from your sails.
Boom: Aluminium or kevlar spar attached to the foot or bottom edge of the
mainsail.
Bow: Front section of the yacht.
Brace: Rope or wire that controls the angle of the spinnaker pole to the wind.
Broad reach: Sailing with the wind coming from the side.
By The Lee: Sailing downwind (wind behind) at an angle where the sails could be
set on either side of the yacht. It means sailing in a position beyond the
present tack without gybing.
Coaming: Edge of the yacht where hull and deck join.
Clew: Corner of the sail on which the sheets (ropes) are tied.
Close hauled: Sailing as close as possible to the direction of the wind.
Coffee Grinder: The big winch with pedal type handles.
Come about: Bring the bow across the eye of the wind until the sails fill on
the other side. Also known as tacking.
Come up: To point the bow of the yacht "up" towards the direction of the wind.
Going "up" is into the wind. Going "down" is away from the wind.
Covering: Getting in front and staying between your opponent and the eye of the
wind, creating a wind shadow. No matter which way he tacks, you go with him. He
cannot sail past you through this wind shadow.
Crane: The mast crane is the alloy arm at the top of the mast holding up the
wire mainsail halyard and the wire backstay.
Cross-trees: Supports on the mast to keep the wire rigging steady.
Dead square: Sailing with wind right behind, with the mainsail out to one side.
Dirty air: Disturbed air from the leading yacht hitting the sails of the
following yacht. Causes dramatic loss of speed.
Downhill: Sailing with the spinnaker up and the wind behind.
Downwind: Same direction as downhill. Away from the wind.
Ease sheets: Slacken off the ropes that adjust the sails.
Falling Off: Heading slightly away from the wind to pick up speed for tactical
reasons.
Foot: The bottom edge of a sail.
Footing: Sailing slightly below the optimum angle of the wind.
Foredeck: Section of deck between mast and bow.
Forestay: Tensioning wire running from bow to masthead.
Genoa: Large front sail that overlaps the mainsail.
Gooseneck: Fitting attaching mainsail boom to mast.
Grind: Winding the handles to operate the huge winches.
Grinder: The big winch operators, commonly called "gorillas" because of the
strength needed in this position.
Gybe: Changing direction when the wind is behind. The sails swing from one side
of yacht to the other.
Halyard: Wire or rope used to hoist sail up the mast.
Harden up: Pull the sails tighter and change direction towards the wind.
Header or knock: Wind shift that enables yacht to tack to a slightly better
line for the next mark.
Heeling: Way in which yacht leans to one side in the wind.
Helm: The steering wheel, or tiller.
Jib: The triangular headsail that provides acceleration power.
Lay line: Imaginary straight line a yacht follows to each mark.
Leech: The trailing edge of a sail.
Lee-bow: To tack into a position slightly ahead and slightly to leeward of your
opponent. An advantageous but risky manoeuvre.
Leeward: Side away from the wind.
Luff: The leading edge of sails. The luff flaps when the bow goes too close to
the wind direction.
Luffing: When the sail flaps because the yacht is too close to the wind.
Mainsail: The rear sail that is attached to a track up the mast and to the
mainsail boom.
Mainsheet: Rope that controls the mainsail.
Masthead: Top of the mast.
Over-ride: When the turns of rope around a winch run one over another. With
several tonnes of pressure on the winch, an over-ride is a big problem, jamming
the sail position.
Pinching: Sailing slightly above the optimum angle on the wind.
Pointing: Aiming the bow as far as possible into the wind.
Pole: Also called the spinnaker boom. A pole attached to the mast and
spinnaker, to hold the spinnaker at the correct angle to the wind.
Port: Left side.
Port tack: When the wind comes from the left, with sails leaning to the right.
Reaching: When the sails are eased, with the wind coming from one side.
Running: Sailing with the wind behind.
Sheets: Ropes that tighten and loosen the sails.
Shooting: Tricky tactic when you can't quite make a mark. Means temporarily
heading the yacht into the wind and luffing (sails flapping) above your course,
and relying on the boat's momentum to 'shoot' around a mark. This avoids making
a short tack at mark, but must be done skilfully, as the yacht rapidly loses
speed.
Shrouds: Wires on each side of the yacht holding the mast up.
Spinnaker: Big, full sail that billows out the front when the wind is from
behind.
Spreaders: Supports on the mast to keep the wire supports steady. Also known as
cross-trees.
Starboard tack: When the wind is coming from the right, with the yacht and
sails leaning to the left.
Stays: Wires running from top of mast to bow (forestay) and top of mast to
stern (backstay). They prevent the mast falling forward or backwards. The
backstay also controls the degree of bend in the mast.
Stern: Rear end.
Tack: Front bottom corner of a sail.
Tacking: When the yacht swings through the wind's eye and the sails swing from
one side to the other.
Tactician: He works out the Match Racing tactics and constantly advises skipper
what is happening.
Tail: Rope attached to the end of a wire halyard.
Tailing: To pull tighter on a sheet (rope) wound around a winch.
Tender: Fast powerboat carrying syndicate managers, advisers, computers and
some spare parts.
Transom: Stern section of the yacht.
Turtle: Special sail bag with zipper or naps from which sails can be speedily
hoisted.
Under way: The yacht is moving forward.
Upwind: Sailing towards the wind.
Vang (Boom Vang): Wire pulley system to hold the mainsail boom. Stops it
angling up away from the deck.
Weather helm: When each gust tends to push the yacht up into the wind.
Weather mark: The mark to windward of the starting line. Must go into the wind
to get there.
Weather side: Side of the yacht towards the wind.
Winches: Mechanical drums that tighten sheets and halyards.
Wind shadow: When the following yacht runs into disturbed air from the leader's
sails.
Wineglass: A bad twist in the centre of the spinnaker. The resulting shape is
like a wine glass.
Wing mark: The widest mark on the course after the first reach. The mark is out
wide, like a wing.
Windward: Side from which wind is blowing.
Wrap: When the spinnaker is twisted around the forestay.
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The sails
MAINSAIL. Chosen prior to the start and not changed during a race. For the
purpose of Arnie's America's Cup Challenge Computer Game only one All Purpose
Mainsail is used.
LIGHT GENOA. Lightweight sail specifically built for light winds only. Use
of this sail outside of its wind range will result in damaged or split sail and
will lose the yacht a lot of ground as an Emergency Genoa change will be
necessary.
If changed voluntarily because of increasing wind, only a very small loss
will occur. One to 3 boat lengths. One in very light winds, out to 3 in very
heavy conditions.
MEDIUM GENOA. Full size sail built to withstand higher loads while the
yacht is still able to carry full size sails.
Using this sail in less wind than recommended will result in a slight speed
loss. A change to the lighter Genoa when the wind decreases to the correct
range will return boat speed.
Use of this sail beyond the suggested wind range causes the yacht to heel
excessively, reducing speed and causing leeway (sliding sideways). A change to
the Heavy Genoa at this stage will return boat speed.
HEAVY GENOA. Used when the wind is too strong for the other Genoas. This
sail will not break in the maximum wind the yacht will be asked to race in.
Used in wind that is lighter than recommended will result in significant
loss of boat speed. A change to a lighter Genoa will return boat speed.
LIGHT SPINNAKER. This is as it's name implies a lightweight sail designed
for use downwind at angles between 70°-180° in very light winds of zero to 12
knots. Damage will occur to this sail if carried beyond it's wind range
(particularly at the narrower wind angles, in the 70°-110° range).
MEDIUM SPINNAKER. Used in the higher wind strengths.
When carried at narrow wind angles in the stronger winds (under 100°) loss
of control, excessive heel and reduced speed along with a damaged sail will
result.
HEAVY SPINNAKER. Specialist sail, very strong. Built smaller and flatter to
carry effectively at narrow angles downwind 70°-110°. It's weight means that it
is not efficient in the 0-6 knot range and a speed loss will occur if this
happens. The smaller size means a speed loss at greater angles than 110°,
although this loss is small.
NOTE: Recommended wind ranges for sails have a "safety factor" built in of
20%. Slight loss of speed will occur up to this point, beyond which the sail
will break.
ARNIE SUGGESTS. Sail Selection should be given careful consideration prior
to the start of each race. Wind strength as announced by the Commodore will be
the primary element of your decision.
Each sail may be used for a short time slightly over its wind range with
only a small penalty. This is to enable the decision to either change to the
next sail or gamble on the wind strength lessening again. A sail change
manoeuvre requires a very slight loss of distance, hence the need to gamble
sometimes and hang onto the sail being used. e.g.: Towards the end of a leg of
the course, or during a tactical move.
Mechanical failures
In order of likely occurence.
Torn Sail (Spinnaker or Genoa).
CAUSE: a) Used in wind range over the 20% safe load.
b) Tangled or fouled an opposing yacht during collision.
SOLUTION: Change in replacement sail. i.e.: nearest alternative from
remaining sails.
EFFECT: Speed halved until replacement is completed. Slight loss of speed
may be continuing if replacement is not correct for the particular wind.
Broken Halyard on Mainsail or Genoa.
CAUSE: Carrying too much sail in a strong wind.
SOLUTION: Repair or replace the halyard.
EFFECT: Speed halved until sail that fell down has been rehoisted.
NETT LOSS: Genoa - 6 lengths, Mainsail - 30 lengths.
Crew failures
In order of most common occurence.
Sheet 'overwind'
CAUSE: Sheets are wound around the winches with several turns, one of which
snags causing the rope to lock on to the winch.
SOLUTION: Untangle or cut sheet and replace it.
EFFECT: Speed halved until repair completed (usually within 10 boat
lengths). Yacht cannot manoeuvre or trim sails while the sheet is jammed.
Spinnaker 'Bad Set'
CAUSE: Too slow hoisting or tangles when hoisting too early.
SOLUTION: Turn smoothly at buoy and hoist when half the yacht is past the
mark.
EFFECT: Slow hoist lose 30% of boat speed, tangle spinnaker lose 40% of
boat speed until cleared (usually within one minute).
Spinnaker 'Bad Gybe'
CAUSE: Skipper turns too slowly and sails extra distance, or too quickly
leaving the crew insufficient time to reset the sails for the new course.
SOLUTION: Turn the yacht in a nice smooth arc so that you pass close to the
buoy sailing straight downwind for a couple of lengths prior to assuming the
new course.
EFFECT: Nett Loss - extra distance sailed for wide turn, or 2 boat lengths
for a rapid turn causing the spinnaker to collapse temporarily.
Spinnaker 'Bad drop'
CAUSE: Too late or too early with the takedown.
SOLUTION: Accurately gauge time required for a smooth efficient takedown,
dependent on the wind strength.
Optimum distance from buoy: strong wind - 7 lengths, medium wind - 5
lengths, light wind - 3 lengths.
EFFECT: Late takedown nett loss 4 lengths. Early takedown slight loss only,
increasing with distance or amount too early.
Man 'Overboard'
CAUSE: Most likely during Spinnaker manoeuvres which are rushed because of
the closeness of the other yacht.
SOLUTION: Do not make snap manoeuvres or decisions that unreasonably
pressure your crew.
EFFECT: Nett loss 20 lengths. Apart from saving your mates, the rules
require you to finish with all of your crew onboard.
Weather conditions
Light Winds 0-12 knots. Easterly.
Water flat, wind gust shadows/cats paws very obvious on water surface.
Greatest variation in wind direction in these conditions. Maintaining boat
speed vital as any loss of speed will take a long time to build up again.
Yacht should be sailed at wider wind angles when "on-the-wind" 80°-90°. 80°
at about 8 knots, out to 90° as the wind lightens towards 2 knots.
Long term tactical decisions more critical, as frequent manoeuvring will
reduce boat speed.
Light Moderate Wind 10-20 knots. South east - South west.
Water has small wind waves, wind on the water. Gusts or increases in wind
speed still fairly clear although not as distinct 'Cats Paws', more as a line
of approaching shadow.
Maintaining boat speed less of a battle, more manoeuvring possible.
Yacht can be sailed at optimum angles on-the-wind 70°-80°. 70° at 10-18
knots increasing to 80° as wind goes down in strength. Closer tactical racing
possible, keeping in mind that a fairly large increase/decrease in wind speed
and direction is still possible and if detected will mean a big gain or loss if
handled correctly/incorrectly.
Moderate-Fresh Winds. 18-30 knots. South westerly (Fremantle Doctor).
Large choppy wind waves.
Wind direction very steady. Usual variation only 5-8 degrees either side of
the mean or average wind.
Gusts or increases in wind are sudden and fairly heavy as it is a cold
heavy wind. The rough water makes gusts or direction change hard to predict.
Response is usually to temporarily sail at a closer angle to the wind
(feathering) inside 70° (without loss of speed). As the gust eases the yacht
should be sailed at 70° or slightly more for best drive. Prolonged 'feathering'
will slow the yacht.
Tactics are paramount as both yachts will have much closer boat speed.
Wind shifts
Wind does not blow from a constant direction.
There are three basic categories - Oscillating, Persistent and combined
Oscillating Persistent.
The majority of races off Fremantle are sailed in Oscillating winds of 12
to 25 knots, however there is a tendency in the lighter easterly winds for the
winds to be Persistent.
Oscillating Winds
Change direction right then left around an average/mean direction. i.e.:
Mean wind at 210°, varies to the left by 10° to 200°, then back to the mean at
210° and on to the right by 10° to 220°.
These oscillations are fairly even and predictable to a large degree on any
given day. Time span and amount of variance will change as the wind strength
alters.
In a fresh/strong wind there is less tendency for the wind to wander or
oscillate. As it lightens it wanders about more. A typical 'Fremantle Doctor'
will oscillate as little as 5° off the mean direction with a total time span of
up to 10 minutes. A land breeze or "Easterly" that is "light" at around 5 knots
may oscillate by as much as 15° or 20° either side of the mean/average over a
time span of 3 to 5 minutes.
Persistent Shifts
A wind direction that continues to slowly change either to the right or the
left e.g.: When first measured the direction is 120° and changes slowly to the
right as the day goes on becoming 125°, 130°, 135° etc.
Oscillating Persistent Shift
This wind is a complicated combination of the two winds. As well as
changing slowly in one direction it also goes left and right in small
oscillations on the way.
As this breeze is not very common and rather complicated to use tactically,
Arnie's America's Cup Challenge Computer Game will only use either Oscillating
or Persistent.
The following diagrams explain the effect of wind shifts on two yachts
sailing to 'windward' on-the-wind ... beating.
[Figure 2 - see AmericasCupChallenge_Figure2.jpg]
In Figure 2 the wind never changes direction (purely hypothetical, as this
never happens). Yachts A and B both sail the same distance to the 'windward
mark'.
Imagine that two yachts are on the same imaginary line perpendicular to the
wind. They then are the same distance from a point upwind - the 'windward mark'
[buoy]. Refer Figure 2.
In the Figure 3 example, both yachts at the start were equal at 200°, the
mean wind direction. A and B would intersect at X.
As the wind swings to the right (210°), yacht B is "lifted" closer to the
mark. Yacht A is "headed" away from the mark. Clearly yacht B crosses yacht A
easily.
[Figure 3 - see AmericasCupChallenge_Figure3.jpg]
The wind then swings to the left (190°) and both yachts tack (Point V).
Again yacht B sails at the better "lifted" angle. Yacht A loses a lot more as
she is "headed" again.
The object of both yachts is to sail on the lifted tack.
In practice the wind direction change reaches the most windward yacht
(closest to the wind) first.
Golden Rule "Tack onto a wind shift that takes you on your best angle to
the mark (buoy)."
The laylines are the imaginary lines stretching downwind from the buoy at
an angle that the yachts can sail 'on the wind'. e.g.: Yacht C is on the
layline and could sail directly to the mark.
If two yachts are on the same layline to the buoy, then the leading yacht
will always be at the buoy first. Both yachts gain or lose in a windshift
whether it heads or lifts. e.g.: When only one yacht is on the layline, then
the other yacht will always gain whether the wind lifts or heads her. If it
lifts she gains distance on the layline yacht. If it heads, the inside yacht
can tack and take advantage of a lift on the new tack while the layline yacht
still sails the same line.
Wind Shifts - Downwind
On the 'reaching' legs of the course (legs 4 and 5) wind shifts do not give
a relative advantage to one yacht as long as they both respond to the change in
direction of the wind angle and trim sails either in or out to compensate.
On the 'running' legs (2 and 7) the yachts will most likely 'tack'
downwind, i.e. sail at a lesser angle to the wind, then straight down. The
speed gain by sailing a slightly tighter angle to the wind can more than
compensate for the added distance sailed. (Refer Figuxe 3.) If you deviate way
off course, your boat speed will not make up the extra distance you have to
cover.
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Sailing ... what to do
A TWELVE metre is primarily driven by a combination of three sails, i.e.:
Mainsall, Genoa, Spinnaker.
Figure 1 shows these sails and the angles to the wind at which they are
used.
[Figure 1 - see AmericasCupChallenge_Figure1.jpg]
Wind angles
The wind angle to the yacht's centreline dictates the type of sail to be
used.
At wind angles less than 70° only the Mainsail and a Genoa are carried
effectively.
At wind angles greater than 70° the Mainsail and a Spinnaker are used. As
the wind strength increases the efficient angle for a Spinnaker increases until
in strong winds the Mainsail and Genoa must be used at angles as wide as 95°.
There is a choice of three Genoas and Spinnakers.
The wind strength will affect whether a light Genoa, medium Genoa, or heavy
Genoa is used.
The wind strength also affects choice of Spinnakers i.e.: light, medium and
heavy.
The following table shows the effective Wind Strength and Wind Angle of the
sail combinations.
It is important to learn these as they will play a large part in the
yacht's performance on the Match course.
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| WIND |
| STRENGTH WIND ANGLE (DEGREES TO CENTRELINE) |
| (KNOTS) 28°-80° 70°-110° 100°-180° |
|-------------------------------------------------------------------------|
| 0-12 Mainsail Mainsail Mainsail |
| Light Genoa Light Spinnaker Light Spinnaker |
|-------------------------------------------------------------------------|
| 10-20 Mainsail Mainsail Mainsail |
| Medium Genoa Heavy Spinnaker Medium Spinnaker |
|-------------------------------------------------------------------------|
| 18-30 Mainsail Mainsail Mainsail |
| Heavy Genoa Medium Genoa Heavy Spinnaker |
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NOTE: As the wind nears the top of the range for each sail combination, slow
trimming or adjusting of the sails or yacht direction in response to wind angle
changes will result in increasing loss of time/distance. No reaction - or very
slow reaction in the strong wind region 20-35 KNOTS may result in loss of
control and the greatest loss of time/distance particularly in the closer
angles to the wind (28°-80° & 90°-110°).
Sailing ... what to do (cont.)
The fact that the wind oscillates will mean that there is a definite need
to be on the correct 'tack' to take the yacht closer to the mark at a tighter
angle 'to the wind'.
The 'Golden Rule' is the opposite to that when on-the-wind. Downwind we
Gybe on the lifts. (Refer Figure 4.)
It can clearly be seen that to sail the same angle to the wind on the
opposite Gybe, yacht B had to travel at more acute angles to the actual 'Rhumb
Line', or straight line course to the mark, and in consequence will sail a
greater distance to reach the buoy. e.g.: Final race September 1983 America's
Cup - Australia II defeats Liberty.
[Figure 4 - see AmericasCupChallenge_Figure4.jpg]
Obstacles
Spectator craft would be the only obstacle likely on an America's Cup
course. The wash from these craft could also be detrimental to boat speed,
particularly as the yachts progress up the 'windward' leg and out to one side a
lot. Near the finish the wash and 'blanketing effect' could also be
significant. (Australia II/Liberty 1983.)
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Your personal record to the 1987 America's Cup Match
The Triumph of ___________________
+--------------------------------------+--------------------------------------+
| RACE ONE | RACE FIVE |
|--------------------------------------+--------------------------------------|
| DAY: ____________ DATE: ____________ | DAY: ____________ DATE: ____________ |
| OFFICIAL START TIME: _______________ | OFFICIAL START TIME: _______________ |
|--------------------------------------+--------------------------------------|
| AROUND THE COURSE | AROUND THE COURSE |
|--------------------------------------+--------------------------------------|
| START | START |
| WON BY: ______________ LEAD: _______ | WON BY: ______________ LEAD: _______ |
| 1ST MARK: ____________ LEAD: _______ | 1ST MARK: ____________ LEAD: _______ |
| 2ND MARK: ____________ LEAD: _______ | 2ND MARK: ____________ LEAD: _______ |
| 3RD MARK: ____________ LEAD: _______ | 3RD MARK: ____________ LEAD: _______ |
| 4TH MARK: ____________ LEAD: _______ | 4TH MARK: ____________ LEAD: _______ |
| 5TH MARK: ____________ LEAD: _______ | 5TH MARK: ____________ LEAD: _______ |
| 6TH MARK: ____________ LEAD: _______ | 6TH MARK: ____________ LEAD: _______ |
| 7TH MARK: ____________ LEAD: _______ | 7TH MARK: ____________ LEAD: _______ |
| FINISH: ______________ LEAD: _______ | FINISH: ______________ LEAD: _______ |
| WIND DIRECTION | WIND DIRECTION |
| AT THE START: ________ SPEED: ______ | AT THE START: ________ SPEED: ______ |
| AT THE FINISH: _______ SPEED: ______ | AT THE FINISH: _______ SPEED: ______ |
| REMARKS: ___________________________ | REMARKS: ___________________________ |
|--------------------------------------+--------------------------------------|
| RACE TWO | RACE SIX |
|--------------------------------------+--------------------------------------|
| DAY: ____________ DATE: ____________ | DAY: ____________ DATE: ____________ |
| OFFICIAL START TIME: _______________ | OFFICIAL START TIME: _______________ |
|--------------------------------------+--------------------------------------|
| AROUND THE COURSE | AROUND THE COURSE |
|--------------------------------------+--------------------------------------|
| START | START |
| WON BY: ______________ LEAD: _______ | WON BY: ______________ LEAD: _______ |
| 1ST MARK: ____________ LEAD: _______ | 1ST MARK: ____________ LEAD: _______ |
| 2ND MARK: ____________ LEAD: _______ | 2ND MARK: ____________ LEAD: _______ |
| 3RD MARK: ____________ LEAD: _______ | 3RD MARK: ____________ LEAD: _______ |
| 4TH MARK: ____________ LEAD: _______ | 4TH MARK: ____________ LEAD: _______ |
| 5TH MARK: ____________ LEAD: _______ | 5TH MARK: ____________ LEAD: _______ |
| 6TH MARK: ____________ LEAD: _______ | 6TH MARK: ____________ LEAD: _______ |
| 7TH MARK: ____________ LEAD: _______ | 7TH MARK: ____________ LEAD: _______ |
| FINISH: ______________ LEAD: _______ | FINISH: ______________ LEAD: _______ |
| WIND DIRECTION | WIND DIRECTION |
| AT THE START: ________ SPEED: ______ | AT THE START: ________ SPEED: ______ |
| AT THE FINISH: _______ SPEED: ______ | AT THE FINISH: _______ SPEED: ______ |
| REMARKS: ___________________________ | REMARKS: ___________________________ |
|--------------------------------------+--------------------------------------|
| RACE THREE | RACE SEVEN |
|--------------------------------------+--------------------------------------|
| DAY: ____________ DATE: ____________ | DAY: ____________ DATE: ____________ |
| OFFICIAL START TIME: _______________ | OFFICIAL START TIME: _______________ |
|--------------------------------------+--------------------------------------|
| AROUND THE COURSE | AROUND THE COURSE |
|--------------------------------------+--------------------------------------|
| START | START |
| WON BY: ______________ LEAD: _______ | WON BY: ______________ LEAD: _______ |
| 1ST MARK: ____________ LEAD: _______ | 1ST MARK: ____________ LEAD: _______ |
| 2ND MARK: ____________ LEAD: _______ | 2ND MARK: ____________ LEAD: _______ |
| 3RD MARK: ____________ LEAD: _______ | 3RD MARK: ____________ LEAD: _______ |
| 4TH MARK: ____________ LEAD: _______ | 4TH MARK: ____________ LEAD: _______ |
| 5TH MARK: ____________ LEAD: _______ | 5TH MARK: ____________ LEAD: _______ |
| 6TH MARK: ____________ LEAD: _______ | 6TH MARK: ____________ LEAD: _______ |
| 7TH MARK: ____________ LEAD: _______ | 7TH MARK: ____________ LEAD: _______ |
| FINISH: ______________ LEAD: _______ | FINISH: ______________ LEAD: _______ |
| WIND DIRECTION | WIND DIRECTION |
| AT THE START: ________ SPEED: ______ | AT THE START: ________ SPEED: ______ |
| AT THE FINISH: _______ SPEED: ______ | AT THE FINISH: _______ SPEED: ______ |
| REMARKS: ___________________________ | REMARKS: ___________________________ |
|--------------------------------------+--------------------------------------|
| RACE FOUR | THE RESULT |
|--------------------------------------+--------------------------------------|
| DAY: ____________ DATE: ____________ | |
| OFFICIAL START TIME: _______________ | |
|--------------------------------------+ |
| AROUND THE COURSE | ____________________________________ |
|--------------------------------------+ |
| START | DEFEATED |
| WON BY: ______________ LEAD: _______ | |
| 1ST MARK: ____________ LEAD: _______ | ____________________________________ |
| 2ND MARK: ____________ LEAD: _______ | |
| 3RD MARK: ____________ LEAD: _______ | ____________ MATCHES TO ____________ |
| 4TH MARK: ____________ LEAD: _______ | |
| 5TH MARK: ____________ LEAD: _______ | |
| 6TH MARK: ____________ LEAD: _______ | FINAL WINNING |
| 7TH MARK: ____________ LEAD: _______ | MARGIN |
| FINISH: ______________ LEAD: _______ | |
| WIND DIRECTION | ______ Min ______ Sec |
| AT THE START: ________ SPEED: ______ | |
| AT THE FINISH: _______ SPEED: ______ | |
| REMARKS: ___________________________ | |
+--------------------------------------+--------------------------------------+
The America's Cup course is over 24.1 nautical miles.
Each leg is 3.25 nautical miles.
Weather records show that over 90% of the summer afternoon breezes blow from a
south westerly direction.
---------------------------------------------------------
12 metre yacht deck features, riggings and crew positions
[Diagram of yacht deck features - see AmericasCupChallenge_YachtFeatures.jpg]
[Diagram of yacht deck riggings and crew positions - see
AmericasCupChallenge_YachtRiggings.jpg]
---------------------------------------------------------
Arnie's America's Cup Challenge
The Game
Success in sailing is founded on a 'feel for the sea', teamwork, practice
and good judgement. Some say luck too, but we think not. We have included all
these elements as the essence of success at playing this game.
We hope you have the 'feel for the sea' some would call luck. Teamwork we
translate into joystick skill. Pages of the ARMCHAIR GUIDE TO THE AMERICA'S
CUP describes a typical 12 metre yacht and its crew. Your joystick becomes your
crew. The better a crew works together the better the yacht sails and so, the
better you refine your joystick skills the better you and 'your crew' will
sail. Practice makes perfect. Good judgement is the challenge that makes people
keep striving. Success in 12 metre yachting, and in this game, results from
repeated good judgement, learning from one's mistakes and excellent teamwork.
In the ARMCHAIR GUIDE TO THE AMERICA'S CUP we describe the factors
affecting the sailing performance (Pages ) and here we describe how you
convert your skipper's decisions through your joystick into action.
The OFFICIAL AMERICA'S CUP COMPUTER GAME is a realistic graphic recreation
of 12 metre yachts sailing and what will need to be done to win the America's
Cup. It is immensely realistic in appearance, strategy and player skill. You'll
really feel like you're out there pitting wits with the best 12 metre
yachtsmen. The rules and regulations are those applied to the America's Cup.
The ARMCHAIR GUIDE TO THE AMERICA'S CUP specifically details from pages all
you will need to know about 12 metre yachts and America's Cup Match racing. The
better you apply the theory detailed there the better you'll play the game.
Play of the Game
You will load the game into your computer as advised in the supplied
instructions, with the initial selections made via the Keyboard.
When the game is loaded, you will select either;
* SINGLE PLAYER - You're the Challenger, the Computer is the Defender.
* TWO PLAYERS - Players to decide their choice and identify as either the
Challenger or Defender.
* LEVEL OF PLAY - Your choice of AMATEUR, CLUB RACE or AMERICA'S CUP.
The COMMODORE will then announce the RACE WEATHER CONDITIONS. PRESS the
SPACE BAR and you will be asked to CHOOSE YOUR STARTING SAILS.
If you're careful, your opponent will not be aware of your choice until the
race starts.
SAIL SELECTION is made using the joystick thus:
Joystick
fire button -----------
| ^ |
[ * ] on | | |
|<---o--->|
[ ] off | | |
| v |
-----------
TO CHOOSE GENOA or SPINNAKER:
-------------------------------------------------------------------------------
1. push joystick down 1. push joystick up
then:
-------------------------------------------------------------------------------
2. press fire button: * once for light sail
** twice for medium sail
*** three times for heavy sail
-------------------------------------------------------------------------------
3. return the joystick to the centre and press the fire button once.
-------------------------------------------------------------------------------
4. the screen will identify this is DONE in the top right or left hand corner.
-------------------------------------------------------------------------------
Play begins with the PRE-RACE MANOEUVRES, the START and the RACE OVER THE
FULL EIGHT (8) LEGS of the course as detailed in the ARMCHAIR GUIDE TO THE
AMERICA'S CUP, page , and in the game's 'demonstration' mode.
N.B.: If no selections are made, the game will automatically switch to
'demonstration' mode and stay there until a key is pressed. See supplied
instructions.
Control of your yacht is by joystick only and you will be kept very busy,
so a good quality, robust joystick is suggested.
Helmsman's Mode
In game play mode there are THREE (3) modes you can be in at any time;
1. HELMSMAN'S MODE
2. SAILS SELECTION MODE
3. WINCHING MODE
Helmsman's mode is the mode used to control the yacht's direction and is
the default mode.
Joystick movement to the RIGHT or LEFT without pressing the fire button,
steers the yacht in the STARBOARD or PORT direction respectively.
RIGHT - movement to STARBOARD
LEFT - movement to PORT
When in split-screen mode (the yachts are too far apart to appear on one
screen) pressing the fire button in 'HELMSMAN'S' mode causes your side of the
split-screen to display the 'mini-course' screen.
Sail Selection Mode
This mode is selected by pushing the joystick forward and pressing the fire
button once.
Once in this mode, these selections produce the following results:
a) JOYSTICK RIGHT - 'BOOM' moves towards centre line
b) JOYSTICK LEFT - 'BOOM' moves out from centre line
The 'ANGLE OF THE BOOM TO THE WIND' is critical to the speed of the yacht
and with sail choice, represent the major options you have to affect your
yacht's performance.
c) JOYSTICK UP - 'SELECTS SPINNAKER'
Then each press of the fire button selects one of the available choices:
* once for light spinnaker
** twice for medium spinnaker
*** three times for heavy spinnaker
d) JOYSTICK DOWN - SELECTS GENOA
Then each press of the fire button selects one of the available choices:
* once for light genoa
** twice for medium genoa
*** three times for heavy genoa
e) * pressing the fire button once with the joystick centred returns you to
'HELMSMAN'S' mode.
Winching Mode
Once new sails have been selected 'WINCHING' mode is selected by moving the
JOYSTICK DOWN and pressing the fire button ONCE.
You can then WINCH SAIL UP by rotating the joystick:
CLOCKWISE
WINCH SAIL DOWN by rotating the joystick:
ANTI-CLOCKWISE
Winching skill is a combination of speed, judgement and consistent contact
with all switches in the joystick. A smooth action produces best results.
Pressing the fire button once with the joystick centred returns you to the
'HELMSMAN'S' mode.
COURSE SCREENS The actual play is represented by FIVE (5) SCREENS
The Course Screen
Which from above, identifies the relative position of the yachts on the
America's Cup course. During play this screen is automatically called up every
minute or so for about 'four (4) seconds', unless some other action interferes.
NOTE: Pay particular attention to any CHANGES IN THE WEATHER (WIND SHIFTS).
The Start Screen
Identifying PRE-RACE MANOEUVRING and the START BOAT. This screen scrolls to
represent the 'RACE' mode with two (2) yachts sailing around the course.
The Split Screen
A. Is automatically created if the yachts are too far apart to appear together
on the one screen. The DEFENDER is on the LEFT and the CHALLENGER is on the
RIGHT.
B. Each yacht can call up a 'mini-course' screen to identify his relative
position by pressing the fire button with the joystick centred in
'HELMSMAN'S' mode.
The Buoy Screen
Represents a close view of either or both yachts rounding any
'MARKER-BUOY'. This represents a critical phase of tactical activity with sail
changing usually required. This screen takes precedence over all others when a
yacht is closely adjacent to any buoy.
During Play
You will have on-screen assistance from:
a) a MARKER ARROW indentifying the DIRECTION OF THE NEXT MARKER-BUOY you are
heading for.
b) EACH PLAYER has a dial identifying his:
- wind speed and direction
- boat speed and direction
- elapsed time for the race
- current leg of the race.
c) 'MESSAGES' appear on the screen identifying changes in conditions or sails
related to the current race. Concentration is critical, particularly in
identifying 'wind shifts', or tactical moves by your opponent.
You have the same information to make tactical decisions that 12 metre
yachtsmen do, so good sailing.
Remember, the ARMCHAIR GUIDE TO THE AMERICA'S CUP provides most of the
information you need to be a successful skipper. The 'SINGLE PLAYER' mode
allows you to practice and develop skill.
Race Results
After each race is over, the 'RACE RESULTS' will appear.
Using the joystick in an 'UP/DOWN MOTION' you select your choice, then
press the fire button to get:
1. RACE RESULTS - full results of the last game in the series and the series
status. You then decide either 2 or 3.
2. NEXT RACE - starts the next race in this series.
3. NEW SERIES - clears out the old series and starts a new series.
If no action is taken after loading of the game or after selecting 2 or 3,
the 'DEMONSTRATION' mode will commence and continue until the 'SPACE BAR' is
pressed.
(Defaulting to 'DEMONSTRATION' mode will mean the starting of a new
series.)
---------------------------------------------------------
Yachting Rules
THE following Rules are an abridged version from the International Yacht Racing
Union 'Blue Book' which the 12 metres race under.
During the America's Cup Computer game any infringement of these rules will
be deemed a 'Foul' by either the Challenger or Defender and the nature of the
'Foul' and the yacht penalised will be indicated on the screen.
The penalty for a "Foul" will be 4 boat lengths. Any Foul during starting
manoeuvres and prior to the actual start will be paid after crossing the start
line.
1. A Port-Tack yacht shall keep clear of a Starboard-Tack Yacht (Rule 36)
2a. A Windward yacht shall keep clear of a Leeward yacht (Rule 37.1)
2b. A Leeward yacht may Luff as she pleases to hamper Windward yacht (Rule
38.1)
3. A yacht Clear Astern shall keep clear of a yacht Clear Ahead (Rule 37.2)
4. A right of way yacht shall not alter course to prevent the other yacht
keeping clear. (Rule 35) (exception is rule 38.1 Luffing)
5. A yacht that is Tacking or Gybing shall keep clear of a yacht on a tack.
6. The outside yacht shall give an inside overlapping yacht room to round a
mark.
7. At a starting mark the Leeward yacht does not give room to the Windward
Barging yacht.
8. When both yachts Tack or Gybe at the same time, the one on the other's Port
or left side, shall keep clear.
9. A yacht that touches a mark/buoy must complete the rounding, then re-round
the mark without touching it, keeping clear of other yacht.
10. A premature starter must return to the pre-race side of the line and start
again. While returning she must keep clear of other yacht.
11. A yacht that is racing shall keep clear of a yacht recovering a
man-overboard.
12. Right of way yacht does not have to hit the other yacht to win a protest.
If he has to avoid a collision the other yacht is wrong. No attempt to avoid a
collision will result in the right of way yacht and the infringer being
penalised.
---------------------------------------------------------
[Diagram of yachting rules - see AmericasCupChallenge_YachtingRules.jpg]
-------------------------------------------------------------------------------
| |
| LOADING INSTRUCTIONS |
| |
| CBM 64/128 DISK: LOAD "*",8,1 and press RETURN. Game will load |
| automatically. |
| |
| CASSETTE: Press SHIFT and RUN/STOP keys together. Press PLAY on the |
| cassette recorder. |
| |
| AMSTRAD DISK: Type RUN " AE " and press RETURN. |
| |
| CASSETTE: Press CTRL and SMALL ENTER, then press PLAY on the cassette |
| recorder. |
| |
-------------------------------------------------------------------------------
U.S. GOLD
All American Software
All rights reserved. Unauthorised copying, lending or resale by any means
strictly prohibited.
© 1986 Armchair Entertainment Pty Ltd.
Manufactured and distributed under licence by U.S. Gold Ltd., Units 2/3 Holford
Way, Holford, Birmingham B6 7AX.