RS:X ClassRS:X Class Briefing Briefing

1.1. Practically no rule 42 Practically no rule 42 ‘‘A board shall be propelled only by the action of the A board shall be propelled only by the action of the wind on the sail, by the action of the water on the hull wind on the sail, by the action of the water on the hull and by the unassisted actions of the competitor’and by the unassisted actions of the competitor’

2.2. Rule 13 Rule 13 ( no more rule 13.2 – gybing rule)( no more rule 13.2 – gybing rule)

When a board changes tack, watch the sail to be fill When a board changes tack, watch the sail to be fill on the new tack (normally it is done by the first or on the new tack (normally it is done by the first or second pump) and after that if the board starts to second pump) and after that if the board starts to move (the position of the hull at that moment is not move (the position of the hull at that moment is not important). important).

3.3. No rule 17No rule 17The board The board clear ahead clear ahead uses this close to a uses this close to a mark to prevent the board mark to prevent the board clear asternclear astern getting getting an inside overlap board.an inside overlap board.If board clear astern becomes If board clear astern becomes overlapped overlapped to leeward of a board on the same tack, she has leeward of a board on the same tack, she has no luffing limitation.no luffing limitation.

4.4. No Zone around the mark. No rule 18.3. No Zone around the mark. No rule 18.3.

Rules 18.1,18.2(b),18.2(c) and 18.4 are Rules 18.1,18.2(b),18.2(c) and 18.4 are changed: changed:

The first sentence of rule 18.1 is changed The first sentence of rule 18.1 is changed to: to:

‘‘Rule 18 applies between boards when they Rule 18 applies between boards when they are required to leave a are required to leave a mark mark on the same on the same side and at least one of them is side and at least one of them is about to about to round or passround or pass it’. it’.

The definition of ‘The definition of ‘about to round or pass’ is:is:

A board is A board is about to round or passabout to round or pass a a markmark when her when her proper courseproper course is to begin to is to begin to manoeuvre to round or pass it’.manoeuvre to round or pass it’.

Downwind mark – the beginning of a Downwind mark – the beginning of a manoeuvre in planning condition manoeuvre in planning condition

• In planning condition the distance In planning condition the distance between the leeward mark and the place, between the leeward mark and the place, where the manoeuvre begins, can be where the manoeuvre begins, can be more than 6 - 8 board lengths (depends more than 6 - 8 board lengths (depends from the wind and board speeds). from the wind and board speeds). In slalom races it can be more than 10 In slalom races it can be more than 10 lengths. lengths.

• During the manoeuvre in planning During the manoeuvre in planning condition, the competitor is doing his condition, the competitor is doing his (her) best to increase or maintain the (her) best to increase or maintain the speed and to stay on the plane. speed and to stay on the plane. To do this the line that the board takes To do this the line that the board takes has to be, as close as possible, to the has to be, as close as possible, to the ideally symmetrical arc.ideally symmetrical arc.The competitor initiates the manoeuvre The competitor initiates the manoeuvre by depressing the by depressing the downwind raildownwind rail (edge of (edge of the board).the board).

Section C rules (rules 18,19 and 20) do not apply at a starting mark surrounded by navigable water or its anchor line from the time boards are approaching them to start until they have passed them (Preamble to Section C)

Rule 18 ‘Mark-Room Rule’ applies between boards required to leave a mark on the same side and at least for one of them the proper course is to begin the manoeuvre to round or pass the mark. However, it does not apply:

•between boards on opposite tacks on a beat to windward;

•between boards on opposite tacks when the proper course for one is to tack at the mark

•between a board approaching a mark and a board leaving it

• If the mark is a continuing obstruction, in which case rule 19.2 applies.

Watch for: Watch for:

• the change of the position of the competitor’s feet, the change of the position of the competitor’s feet,

• the change of his body position and for the change of his body position and for

• any alternation in the position of the sail and any alternation in the position of the sail and board board

to fix the moment when rule 18 starts to apply.to fix the moment when rule 18 starts to apply.

In not planning condition the beginning of the In not planning condition the beginning of the manoeuvre is close to the mark and the manoeuvre is close to the mark and the manoeuvre is simpler.manoeuvre is simpler.

The manoeuvre starts when the competitor The manoeuvre starts when the competitor initiates a gybe by depressing the initiates a gybe by depressing the upwind railupwind rail combined with a big sail movement forwards. The combined with a big sail movement forwards. The competitor strives for fast releasing of the boom competitor strives for fast releasing of the boom and filling the sail on the new tack. and filling the sail on the new tack.

Watch the sail, not the board.Watch the sail, not the board.

In other words rule 18 applies:

• leeward mark – always;

•at the gate marks – always for the boards rounding or passing the same mark on the same side;

•at the windward mark - if either board passes head to wind (R18.2(c)) the outside overlap board shall then give the inside board mark-room - R18.2(a).

The obligation to give mark-room under rule 18 stops applying:

•When the board entitled to mark-room no longer needs it (compare to when R10 stops to apply), or, if earlier:

• If either of the boards passes head to wind;

• If rule 18 stops to apply (see R18.1(a),(b) and (c)).

5.5. Rule 22.2 Rule 22.2

Capsized board shall not take Capsized board shall not take

an action that hinders another boardan action that hinders another board

6.6. Rule 23.3 Rule 23.3

A board shall not sail in the course area A board shall not sail in the course area defined in the SIs when races are taking defined in the SIs when races are taking place except in her own raceplace except in her own race

7.7. Rule 24 Rule 24

When approaching the starting line to When approaching the starting line to start, her sail shall be out of the water start, her sail shall be out of the water and in normal position, except when and in normal position, except when accidentally capsized accidentally capsized

A board is capsized when her sail or the A board is capsized when her sail or the competitor is in the water.competitor is in the water.

8.8. Rule 31 – Rule 31 – Can touch mark, but shall not Can touch mark, but shall not hold on to it.hold on to it.

9.9. Turn penalty – one 360Turn penalty – one 36000 turn with no turn with no requirement for tacks and gybes.requirement for tacks and gybes.

Watch the board, not the sail.Watch the board, not the sail.

1010. Starting . Starting

In light airIn light air

• boards ‘sit’ on line very early and keep boards ‘sit’ on line very early and keep position by backing the sail to move astern;position by backing the sail to move astern;

• They can touch the RC boat but not hold on to They can touch the RC boat but not hold on to it;it;

• Sail must be in normal position.Sail must be in normal position.

In planning conditionIn planning condition

• Part of the fleet starts on starboard and the Part of the fleet starts on starboard and the rest - on port tack. The size of these two rest - on port tack. The size of these two parts depends from the angle between the parts depends from the angle between the starting line and the wind direction;starting line and the wind direction;

• The encounter happened close to the The encounter happened close to the middle of the starting line. middle of the starting line.

If there is an incident, take notes for all If there is an incident, take notes for all details connected with possible request for details connected with possible request for redress - 62.1(e). Also was there a penalty redress - 62.1(e). Also was there a penalty turn on time?turn on time?

Rule 62.1(e) ‘a board that failed to Rule 62.1(e) ‘a board that failed to keep keep clearclear and caused and caused capsizecapsize of the other of the other board’board’

11.11. The UpwindThe Upwind

The angle between the close-hauled course The angle between the close-hauled course and the wind direction depends on the wind and the wind direction depends on the wind speed and the waves:speed and the waves:

• Less than 10 Kts – Less than 10 Kts – 40-4540-450;0;

• 10-12 Kts and more - 10-12 Kts and more - 60-7060-700;0;

• The boards change the direction non-The boards change the direction non-stop (like snake).stop (like snake).

Pay attention to your positioningPay attention to your positioning

13.13.The downwind leg The downwind leg

• Wind speed 6-8 Kts - Wind speed 6-8 Kts - 17017000 -190 -19000

• Wind speed 12-22 Kts - Wind speed 12-22 Kts - 1351350 0 -225-22500

• In 15 Kts – 3BL less than 1 sec.In 15 Kts – 3BL less than 1 sec.

Pay attention to your positioningPay attention to your positioning

14.14. FINISHFINISH

Last sentence of 61.1(a):Last sentence of 61.1(a):

‘‘She shall inform the race committee of She shall inform the race committee of her intention to protest immediately after her intention to protest immediately after she finishes or retires.’ she finishes or retires.’

Not in force for the Medal race.Not in force for the Medal race.

15.15. MEDAL RACEMEDAL RACE

(a) Rule 19.1 - no need to do arm signals.(a) Rule 19.1 - no need to do arm signals.

(b) Voluntary penalty:(b) Voluntary penalty:

• a board shall promptly a board shall promptly one 360one 36000 turn with no turn with no requirement for tacks and gybes.requirement for tacks and gybes.

Watch the board, not the sail.Watch the board, not the sail.

c) No need to display a red flag.c) No need to display a red flag.

(d) Rule 31.1 for boards – they (d) Rule 31.1 for boards – they can touch mark, can touch mark, but shall not hold on to it.but shall not hold on to it.

(e) Umpire red flag - one 360(e) Umpire red flag - one 36000 turn with no turn with no requirement for tacks and gybes.requirement for tacks and gybes.

16.16. Slalom Slalom

• In planning condition, the competitor In planning condition, the competitor initiates the manoeuvre to round the initiates the manoeuvre to round the mark by depressing the mark by depressing the downwind raildownwind rail (edge of the board). The attitude of the (edge of the board). The attitude of the sail will also change as well the sail will also change as well the competitor’s body position.competitor’s body position.

This is the moment when rule 18 starts to This is the moment when rule 18 starts to apply.apply.

• During the manoeuvre, the competitor is During the manoeuvre, the competitor is doing his best to maintain speed and to doing his best to maintain speed and to stay on the plane, so the line that the stay on the plane, so the line that the board takes is close to the ideally board takes is close to the ideally symmetrical arc.symmetrical arc.Watch for the change of the competitor’s Watch for the change of the competitor’s foot positioning, the change of his body foot positioning, the change of his body position and for any alternation in the position and for any alternation in the attitude of the sail and board to fix the attitude of the sail and board to fix the moment when rule 18 starts to apply.moment when rule 18 starts to apply.

• In non-planning condition, the In non-planning condition, the manoeuvre starts when the competitor manoeuvre starts when the competitor initiates a gybe by depressing the initiates a gybe by depressing the upwind railupwind rail combined with a big sail combined with a big sail movement forwards. The competitor movement forwards. The competitor strives for fast releasing of the boom strives for fast releasing of the boom and filling the sail on the new tack. and filling the sail on the new tack. Watch the sail, not the board. Watch the sail, not the board.

17. 17. Final TipsFinal Tips

In not planning conditions, do not In not planning conditions, do not produce wake. It is very difficult for produce wake. It is very difficult for the competitors to keep the balance the competitors to keep the balance on the board.on the board.

In planning conditions their angle is In planning conditions their angle is different then the other boats. different then the other boats. They accelerate very quickly after a tack They accelerate very quickly after a tack or gybe.or gybe.Pay attention to your positioningPay attention to your positioning