Roll Tack and Roll Gybe

Roll tack and roll gybe are the advanced variants of the classic course changes tacking and gybing. Instead of dragging the boat slowly through the in-irons moment, they use targeted weight transfer and roll motion of the hull to regain speed faster. In regatta racing, these manoeuvres decide boat lengths – especially in dinghies and skiffs, where crew weight directly affects speed.

Those who master roll tack and roll gybe lose less VMG during course changes and can use tactical windows more tightly. This guide explains the physics, sequence, and training – as a supplement to the overview under Tacking and Gybing.

What distinguishes roll manoeuvres from the standard?

In a standard tack, the helmsman turns the boat through the wind while the crew remains largely static. In a roll tack, helmsman and crew together initiate a controlled roll motion: weight moves dynamically from lee to windward and back to the new lee side. The jib is set during the roll, the hull heels briefly and rights itself – the boat accelerates earlier out of the in-irons phase.

Similarly with the roll gybe: instead of passively waiting for the boom to cross, the crew uses the roll to keep the stern stable and guide the boom controllably across the centre of the boat. Especially in gusts and at high downwind speed, this prevents capsizes and sail damage.

You can find the basic terminology for tacking and gybing under Tacking and Gybing. How course changes affect VMG is explained in Courses and VMG.

Roll tack – technique and sequence

The roll tack is the most important acceleration manoeuvre upwind in single-handed and double-handed dinghies. It combines steering, sail handling, and coordinated body movement.

Physics behind the roll tack

1. Roll creates lift and change of direction – When the crew moves to windward, the hull heels; the jib can be set earlier without stalling.
2. Shorter in-irons phase – Through the roll the boat stays more dynamic; it loses less speed than with a steep, static turn.
3. Earlier acceleration – Weight on the new lee side pushes the boat into the new course sooner; VMG rises faster.

Roll tack in six phases

1. Preparation – Course stable close-hauled, jib slightly tensioned, crew in start position lee
2. Initiation – Helmsman calls "Tacking!" and begins a gentle turn to windward; crew starts moving to windward
3. Roll to windward – Crew shifts weight across the centre of the boat; hull rolls, jib is eased or taken over the head
4. In irons – Mainsail stays set; jib is prepared on the new side during the roll
5. Roll back – Crew jumps/moves to new lee side; jib sets, mainsheet trimmed in
6. Acceleration – Trim course for VMG, check telltales, build speed immediately

Sail handling during the roll tack

The jib is the critical factor. Set too early, it wraps around the forestay; set too late, the boat loses speed in the in-irons phase. The trimmer must know the moment when the roll briefly brings the boat onto the new tack – that is exactly when the jib is set.

For mainsail and jib trim before and during the manoeuvre, see Mainsail and jib trim. Check telltales and sail shape after the tack under Telltales and sail shape.

Roll gybe – technique and sequence

Gybing on a run is the riskier manoeuvre – the boom swings with force from one side to the other. The roll gybe uses weight transfer to keep the stern stable and cross the boom in a controlled manner.

Why roll gybe instead of standard gybe?

• Stability in gusts – Roll keeps the boat flatter; capsize risk decreases
• Controlled boom path – Mainsheet is trimmed in during the roll, not whipped
• Faster VMG recovery – After the gybe the boat is back on course sooner

Roll gybe in five phases

1. Call – "Gybe ho!" / "Roll gybe!"; crew confirms readiness, checks boom zone
2. Bear away – Helmsman turns further leeward; crew shifts weight leeward for stability
3. Pre-roll – Short roll to windward initiated; mainsail brought to centre position
4. Boom cross – Mainsheet trimmed in controllably; crew rolls back to new lee side
5. Trim downwind – Restore downwind trim, find VMG course

Wind strength and technique choice

In strong wind and with depower measures, Reefing and avoidance manoeuvres also help.

Crew coordination and communication

Roll manoeuvres rarely fail due to lack of skill of individual sailors, but due to desynchronisation. Helmsman, jib trimmer, and mainsail trimmer must follow the same timeline.

Typical command sequence roll tack

1. Tactician: "Tack in three… two… one… tack!"
2. Helmsman: initiates turn and first roll
3. Jib trimmer: eases / takes over / sets on new side
4. Mainsail trimmer: holds sheet until in irons, then trim in
5. Crew: "Made!" / "Done!" – acceleration begins

Typical command sequence roll gybe

1. Helmsman: "Gybe ho!"
2. Crew: "Ready!"
3. Helmsman: "Gybing!"
4. Trimmer: crosses boom, calls "Made!"
5. All: restore VMG trim

Regatta use and tactics

On windward-leeward courses, roll manoeuvres are central tools for laylines, gates, and tactical covering.

When roll tack makes sense

• Just before the layline – faster onto new tack
• In wind shifts – regain speed sooner
• For covering – faster tack, don't leave opponent in clear air

When roll gybe makes sense

• Before leeward gates – faster onto favoured side
• In gusts – more stable boom crossing
• In tight fleets – faster course change without wide arc

Common mistakes and corrections

Mistakes during roll tack

• Turn too steep – In irons too long; solution: flatter steering, initiate roll earlier
• Jib set too early – Wrap on forestay; solution: wait for roll moment
• Crew out of sync – Boat capsizes or loses speed; solution: train slowly, fixed commands
• Mainsail not trimmed in – Boat falls off; solution: trimmer follows timeline

Mistakes during roll gybe

• Boom uncontrolled – Strike on crew or damage; solution: ease mainsheet beforehand, control roll
• No pre-roll – Stern breaks out; solution: short windward roll before boom cross
• Crew in boom zone – Injury risk; solution: calls, practise duck position
• Gybe in too much wind without depower – Capsize; solution: reef or bear-away alternative

Training plan and checklist

Roll manoeuvres are not invented on regatta days, but internalised in training sessions. Start with isolated exercises, increase pace, and integrate tactical scenarios.

Practice progression

1. Light wind, slow – Roll tack and roll gybe individually, call each phase
2. Moderate wind – Increase pace, measure VMG after manoeuvre
3. Regatta simulation – Roll manoeuvres in gate roundings and layline scenarios

Checklist: roll tack before training

• Jib and mainsheet running free, no snags
• Commands agreed with crew
• Telltales visible and functional
• Crew coordination practised (who goes where when?)
• Steering: flat turn planned, not steep
• Target VMG after manoeuvre defined (course and trim)

Checklist: roll gybe before training

• Boom zone clear, crew knows duck position
• Wind strength and depower need checked
• Mainsheet handling practised (ease, trim in)
• Call sequence fixed (Gybe ho → Ready → Gybing → Made)
• Alternative plan in too much wind (pinching, reef)
• After manoeuvre: VMG course and sail trim prepared

Related topics

• Tacking and Gybing
• Tacking and Gybing – Terminology
• Courses and VMG
• Mainsail and jib trim
• Windward-leeward courses