Start Racing - Andrew P-M. TRIM Weight / Crew Centre of Effort Centre of Resistance.
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Transcript of Start Racing - Andrew P-M. TRIM Weight / Crew Centre of Effort Centre of Resistance.
![Page 1: Start Racing - Andrew P-M. TRIM Weight / Crew Centre of Effort Centre of Resistance.](https://reader035.fdocuments.us/reader035/viewer/2022062421/56649dbe5503460f94ab1b7f/html5/thumbnails/1.jpg)
Start Racing - Andrew P-M
Introduction to Racing ‘Start of the
Journey’
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Start Racing - Andrew P-M
5 Essentials‘Efficient sailing’
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Start Racing - Andrew P-M
TRIM
Weight / Crew
Centre of Effort
Centre of Resistance
5 Essentials
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Start Racing - Andrew P-M
TRIM
Weight forward encourages turn into wind
Centre of Effort
Centre of Resistance
5 Essentials
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Start Racing - Andrew P-M
TRIM
Weight Backward encourages turn away from wind
Centre of Effort
Centre of Resistance
5 Essentials
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Start Racing - Andrew P-M
TRIM
Weight Backward & Board up encourages turn away from wind
Centre of Effort
Centre of Resistance
5 Essentials
Top Tip
As wind increases Sit further back
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Start Racing - Andrew P-M
BALANCE
Boat UprightCentre of Effort approximately above Centre of Resistance
Centre of Effort
Centre of Resistance
5 Essentials
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Start Racing - Andrew P-M
BALANCE
Boat heelingCentre of Effort not above Centre of ResistanceTendency to turn into wind
Centre of Effort
Centre of Resistance
5 Essentials
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Start Racing - Andrew P-M
BALANCE
Boat heeling Centre of Effort not above Centre of ResistanceTendency to turn away from windCentre
of Effort
Centre of Resistance
5 Essentials
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Start Racing - Andrew P-M
CENTREBOARD / DAGGERBOARD
5 EssentialsWIND
SOAP
No Board Half Board Full Board
Top Tip Generally better to have slightly too much board – Check wake & Transit
Wind in Sails
Resistance
from board
Forw
ard
Mov
emen
t
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Start Racing - Andrew P-M
WIND
SAIL
Sails work best with wind flowing smoothly over both sides
5 Essentials
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Start Racing - Andrew P-M Start Racing - Andrew P-M
SAILS - TELL TAILS
Nearest Tell Tale Down Bear Away or Sheet In
Furthest Tell Tale Down Point Up or Sheet Out
Top Tip Both Tell Tales Flying = Fast
Remember other wind indicators
Burgee and Leech Tell Tale shows flow leaving sail
Efficient SailingSail Trim
5 Essentials
Area about 1/5 back from luff is most sensitive
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Start Racing - Andrew P-M
Top Tip Check rudder central also look at wake
Efficient Sailing DRAG
X X
Top TipA light touch on the extension can feel rudder pressure
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Start Racing - Andrew P-M
Getting Out of Irons
PUSH PUSH
PULL PULL
Top Tip.
Don’t ‘restart’ too soon. Go to almost 90o from the wind
Push Tiller AwayPush Sail Away
Pull Tiller Towards YouPull Sail Towards You
Top Tip.
Avoid getting into irons –use 5 E’s
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Start Racing - Andrew P-M
RULES
‘Avoiding Collisions’
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Start Racing - Andrew P-M
Simple Rules
Rules Principles
• Sportsmanship, fair sailing and misconduct
If you break a rule – take a penaltyPlay fairly
• Help those in danger
• The decision to race is yours – not the people running the race
• A boat must avoid contact if reasonably possible
• When a right-of-way boat changes course, she shall give the other boat room to keep clear.
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Start Racing - Andrew P-M
Rules OPPOSITE TACKS
WIND
STARBOARD
STARBOARD
Port should Tack or Bear Away
Port should Gybe or go behind
ON OPPOSITE TACKSThe port tack boat must keep clear
Simple Rules
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Start Racing - Andrew P-M
Rules WINDWARD LEEWARD
WIND
WINDWARD
WINDWARD
THE SAME TACK, OVERLAPPEDThe boat to windward must keep clear
Simple Rules
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Start Racing - Andrew P-M
Rules OVERTAKING BOAT
WIND
KEEP CLEARON THE SAME TACK, NOT OVERLAPPEDThe boat clear astern must keep clear
Simple Rules
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Start Racing - Andrew P-M
WIND
Rules Tacking
WHILE TACKINGAfter a boat passes head to wind she must keep clear of other boats until she is on a close hauled course
Simple Rules
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Start Racing - Andrew P-M
Rules ROOM FOR MARK
WIND
ROOM
Three Boat Lengths
WINDWARD
Simple Rules
ROOM AT A MARK OR OBSTRUCTIONWhen boats are overlapped the outside boat must give inside boat room to pass the mark or obstruction
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Start Racing - Andrew P-M
Rules ROOM FOR MARK
WIND
ROOM
Three Boat Lengths
STARBOARD
Simple Rules
ROOM AT A MARK OR OBSTRUCTIONWhen boats are overlapped the outside boat must give inside boat room to pass the mark or obstruction
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Start Racing - Andrew P-M
Rules ROOM FOR OBSTRUCTION
WIND
ROOM
Simple Rules
ROOM AT A MARK OR OBSTRUCTIONWhen boats are overlapped the outside boat must give inside boat room to pass the mark or obstruction
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Start Racing - Andrew P-M
Rules ROOM FOR OBSTRUCTION
WIND
STARBOARD
ROOM
Simple Rules
ROOM AT A MARK OR OBSTRUCTIONWhen boats are overlapped the outside boat must give inside boat room to pass the mark or obstruction
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Start Racing - Andrew P-M
WIND
Rules Tacking
Simple Rules
OPPOSITE TACKS AT WINDWARD MARK
When boats are on opposite tacks, port must keep clear
When a boat completes a tack within the three length zone and the other is fetching the mark the tacking boat must not force the other boat above a close hauled course
If the boat astern gets an inside overlap the boat that tacked must give room
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Start Racing - Andrew P-M
COURSE – 5 E’s
WIND
Sail InBoard DownBalance FlatTrim FlatTack towards Mark
Sail OutBoard UpBalance FlatTrim FlatStraight Course
Sail ½ OutBoard ½ UpBalance FlatTrim FlatStraight Course
GYBE
TURN UP TO WIND
BEAR AWAY
A Triangular Course
1
2
3
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Start Racing - Andrew P-M
OPPOSITE TACKS
WIND
STARBOARD
ROOM for Starboard
BoatYou Tack
More Rules
Top Tip
Other Boats often slow you down
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Start Racing - Andrew P-M
OPPOSITE TACKS
WIND
STARBOARDROOM for Starboard
Boat
More Rules
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Start Racing - Andrew P-M
OVERLAP
WIND
Blue has overlapBlue still has overlap
No overlapNo overlap
More Rules
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Start Racing - Andrew P-M
ROOM FOR MARK
WIND
ROOM - DOES NOT APPLY
At Start Line Marks (no proper course immediately prior to start)
At Windward MarkWindward Leeward & or Opposite Tacks apply
Limited rights if tacking within the 3 boat length zone
More Rules
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Start Racing - Andrew P-M
PENALTIES
Penalties
360o (one complete turn) Hitting a Mark – no need to re-round
720o (two complete turns) Other infringement
Turns should be part of same manoeuvre
All penalties taken at the earliest opportunity
A boat has no rights when making her turns (so keep clear!)
More Rules
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Start Racing - Andrew P-M
Strategy
‘The fastest route – without other boats’
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Start Racing - Andrew P-M
WIND
Converging Course
Avoiding a Collision
If relative position stays same – collisionIf angle reducing – it will pass in frontIf angle increasing – it will pass behind
Careful – the wind may increase / change at the last moment
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Start Racing - Andrew P-M
OPTIMUM SPEED - WINDWARD
WIND
Remember the need to Tack Back !
All Changes with;Boat Type, Wind Strength, Tide or Current
Almost Broad Reach (fast)
Pinching too close into wind (slow)
Efficient Sailing
Windward progress for different headings
Top Tip.
Sail pulled in to cornerBoth Tell Tales flying
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Start Racing - Andrew P-M
WIND
TACTICS
Wind Shadow
Bank / Shallows
Weed
More Wind
Fishermen
Other Boats
Lift
Wind Bend
Header
Boat Speed
Strategy
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Start Racing - Andrew P-M
WIND
TACTICS
Strategy
Shallows
Other Boats
Weed
Gust
Shadows / Bend
Top Tip.
Have a plan
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Start Racing - Andrew P-M
THE BEAT (Strategy)
WIND
45o to the windBlue route 1 tackRed route 3 tacks
Strategy
Into Wind
45o
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Start Racing - Andrew P-M
THE BEAT PORT LIFT (Strategy)
WIND
Port LiftedStarboard Headed – sailing on port much shorter
Strategy
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Start Racing - Andrew P-M
THE BEAT STARBOARD LIFT(Strategy)
WIND
Starboard LiftedPort Headed– sailing on Port much longer
Strategy
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Start Racing - Andrew P-M
THE OPTIMUM BEAT (Strategy)
WIND WIND
Strategy
Can end up sailing Longer distance
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Start Racing - Andrew P-M
THE OPTIMUM BEAT (Strategy)
WIND WIND
Top TipThe tack that is aiming closest to the mark is often the best to be on.
Strategy
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Start Racing - Andrew P-M
Starting
‘The best route to clear air’
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Start Racing - Andrew P-M
Start Flags
4 min Open 1 min Open Start Open
Top Tip
Check Sailing Instructions
4 minutes Frampton
2 minutes Frampton
StartFrampton
Frampton Starting
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Start Racing - Andrew P-M
Start Flags
Open Meeting Starting
5 min Open 4 min Open 1 min Open Start Open
Top Tip
Check Sailing Instructions
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Start Racing - Andrew P-M
WIND
Start Line Transit
Start Lines
X
X
Use Tree, house, Pylon etc as Transit
Always on the line
Always on the lineTop Tip
Transits take the guessing out of starts
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Start Racing - Andrew P-M
WIND
Start Line Safe Transit
Start Lines
One boat length ½ way along
Two boat lengths at mark
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Start Racing - Andrew P-M
START LINE
WIND
21 3
A B C D
E
Where to Start with a ‘perfect ‘ beat ?
Does it make a difference which is the windward mark?
Start Lines
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Start Racing - Andrew P-M
START LINE
WIND
21 3
A B C D
E
Where to Start with a ‘Starboard bias ‘ beat ?
Does it make a difference which is the windward mark?
Start Lines
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Start Racing - Andrew P-M
START LINE
WIND
21 3
A B C D
E
Where to Start with a ‘Port bias‘ beat?
Does it make a difference which is the windward mark?
Start Lines
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Start Racing - Andrew P-M
START LINE
WIND
No go zone
Inner Distance Mark
No Room ?WINDWARD
Line Sag
WINDWARD
Start Lines
Top Tip
Less risks when starting on Starboard
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Start Racing - Andrew P-M
Tactics
‘Dealing with other boats’
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Start Racing - Andrew P-M
HEAD OUT OF BOAT
What to look for…
What happened last time round ?
Look at your boat – Sails, Burgee
Bank – weed – wind strength - Fishermen
Other boats – their sails, how high are they pointing ?
Flags on buoys, what might the wind do ?
Have you noticed boats ahead gaining – can you do same ?
Other boats will they affect you – (are they faster or slower)
Who has right of way
What might the other boats be expected to do ?
Try to predict what may take place
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Start Racing - Andrew P-M
WIND
Top Tip
Wide in tight out
Tight in wide out
Leeward Mark
Mark Rounding
Wide in tight out more likely to keep out of dirty air from other boats
Wide in tight out
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Start Racing - Andrew P-M
WIND
Port Layline
Starboard Layline
Overstood
Under Layline
End of first beat - windward mark
Mark Rounding
Port / StarboardLimited rights if tacking within 3 boat lengths
Three Boat Lengths
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Start Racing - Andrew P-M
WIND SHADOW
WIND
Run – flow affected downwind
Reach – flow affected to leeward
Upwind– flow affected to leeward and astern
Tactics
SlowZone
SlowZone
SlowZone
Top Tip
Sail where there is most wind
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Start Racing - Andrew P-M
WIND
The Beat – Lee Bow
Tactics
Blue is likely to be slowed by yellow tacking in front of her
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Start Racing - Andrew P-M
Sail Control
‘What does that string do ?’
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Start Racing - Andrew P-M
SAIL CONTROLS - KICKER
Kicking Strap
LooseLeech allowed to curveSail made fuller
Kicker Pulls the boom down
TightLeech held StraightSail Flattened
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Start Racing - Andrew P-M
SAIL CONTROLS - KICKER
Kicking Strap
LooseLeech allowed to curveIf too loose can blow in front of mast (may make boat unstable)Sail made fuller
Kicker Pulls the boom down
TightLeech held StraightSail Flattened
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Start Racing - Andrew P-M
SAIL CONTROLS - OUTHAUL
Outhaul
LooseSail full – at bottom
TightSail flattened – at bottom
Outhaul pulls sail along the boom – changes bottom 1/3 of sail
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Start Racing - Andrew P-M
SAIL CONTROLS - DOWNHAUL
Downhaul / CunninghamTight
Front of sail flat
LooseSail fuller
Downhaul tightens the luff
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Start Racing - Andrew P-M
SAIL CONTROLS - Full or Flat
Full or Flat SailFull Sail
More Power Increased Healing Lower Pointing
Flat Sail
Less Power Less Heeling Higher Pointing
Top TipUpwind flat – to allow boat to point – but with powerDownwind Full – to develop power – but not so baggy as to develop drag
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Start Racing - Andrew P-M
Cornering
‘New Directions’
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Start Racing - Andrew P-M
Cornering
Roll TackWIND
1 - LOOK (BEHIND YOU)Check its safe to tack
Top Tip
Also look under boom!
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Start Racing - Andrew P-M
Cornering
Roll TackWIND
2 - HEEL to LEEWARD(Helps turning)
Top Tip
Also look under boom!(helps heeling)
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Start Racing - Andrew P-M
Cornering
Roll TackWIND
3 - GO THROUGH to HEAD TO WIND (May need a bit of rudder)
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Start Racing - Andrew P-M
Cornering
Roll TackWIND
4 - AS SAILS BACK – LEAN OUT TO HEEL TO OPPOSITE SIDE5 - LET SAIL OUT SLIGHTLY
Helm hidden under sail
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Start Racing - Andrew P-M
Cornering
Roll TackWIND
6 - STRAIGHTEN RUDDER7 - WHEN ON CLOSE HAULED COURSE FLATTEN BOAT BY CROSSING TO WINDWARD SIDE 8 - PULL IN SAIL
Top Tip
Try and minimise use of rudder
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Start Racing - Andrew P-M
Cornering
Kiting and GybingWIND
1 - LOOK (Under Sail)(Check its safe to Gybe)
Kiting
Top Tip
In Toppers and Lasers - Try sailing by the lee !
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Start Racing - Andrew P-M
Cornering
Kiting and GybingWIND
2 - HEEL MORE TO WINDWARD(helps turning)
Kiting
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Start Racing - Andrew P-M
Cornering
Kiting and GybingWIND
3 – MAY NEED A LITTLE RUDDER
Kiting
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Start Racing - Andrew P-M
Cornering
Kiting and GybingWIND
4 – PULL IN ARMFUL OF MAINSHEET TO INITIATE GYBE.5 – STRAIGHTEN RUDDER
Kiting
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Start Racing - Andrew P-M
Cornering
Kiting and GybingWIND
6 – CHANGE SIDES
Kiting
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Start Racing - Andrew P-M
Trigger Pull Start
Trigger Pull StartWIND
1 – APPROACH LINE – prepare to ‘almost’ stop(Starboard – In Control)
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Start Racing - Andrew P-M
Trigger Pull Start
Trigger Pull StartWIND
2 – A FEW SECONDS PRIOR TO START HEEL TO LEEWARD(To help initiate turn to windward)(May need just a little rudder)
Top Tip
Also look under boom!
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Start Racing - Andrew P-M
Trigger Pull Start
Trigger Pull StartWIND
TO ACCELLERATE3 – STRAIGHTEN RUDDER4 - LEVEL BOAT5 – PULL IN SAIL
Top Tip
Aim to cross line at maximum speed
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Start Racing - Andrew P-M
Which Boat?
‘The seller said that I look good in this ?’
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Start Racing - Andrew P-M
Which Boat ?
Which Boat Next?Optimist
Mirror Topper
LaserRadial
Laser4.7
LaserStandard
Solo
RS Feva Enterprise 420
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Start Racing - Andrew P-M
Which Boat ?
Which Boat Next?Optimist
Mirror Topper
LaserRadial
Laser4.7
LaserStandard
Solo
RS Feva Enterprise 420
Where will you sail ?Sea – Puddle - Ditch
What do the locals sail?Fleet Racing - Class Racing
Crew Size ?Weight - Height
What are your aspritations?Mid fleet - Club Winner Local Open MeetingsNational Events - Olympics
How deep are your pockets?Hundreds – Thousands - Bottomless
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Start Racing - Andrew P-M
Tides‘When the water moves !’
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Start Racing - Andrew P-M
TIDES
Tides
A tide is the rising and falling of Earth's ocean and sea surface caused by the pull of the Moon and the Sun.
Tides cause changes in the depth of both sea and estuary waters.
Tides also make oscillating currents known as tidal streams ‘rip tides' .
This means that being able to predict the effect of tide is important for coastal navigation.
It also means that the ability to clearly identify the water movements associated with the tides is necessary in a race.
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Start Racing - Andrew P-M
TIDES
Tides
Spring has highest tidal range (extremes)
Tides a separated by 12hr 25min
SPRING
High
Low (Ebb)
NEAP
High
Low (Ebb)
Top Tip Deeper Water flows faster than shallow water
Fast
Slow
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Start Racing - Andrew P-M
TIDES
Tides
Marine Chart Shows Depths & hazards
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Start Racing - Andrew P-M
TIDES
Tides
Tide Tables Shows Times and heights
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Start Racing - Andrew P-M
TIDES
Tides
Tide Range Shows Pictorial Times and Heights
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Start Racing - Andrew P-M
Tides
Tide FlowShows Direction of Flows at various points during tide
TIDES
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Start Racing - Andrew P-M
TIDES
TidesWIND
Current /flow can swing boats on their moorings (against the wind)
Observing free floating item near fixed object helps identify water movement
FLOAT Orange
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Start Racing - Andrew P-M
Current
Current
Water flows taking the easiest course.
Take care if needing to round marks
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Start Racing - Andrew P-M
End
‘Trophies to polish !’