Lying Ahull and Running Off

Lying Ahull

Lying ahull means dropping all sail, lashing the helm, and letting the boat drift freely under bare poles. The boat finds its own angle to the wind and waves — typically lying beam-on or slightly off the beam. It is the simplest storm tactic and requires no active management.

When it works: In moderate storm conditions (30–40 knots) with seas that are steep but not breaking, lying ahull allows a well-found boat to ride over the waves. The hull presents its side to the waves, which the hull shape is designed to handle — the deep sections shed water, the freeboard provides reserve buoyancy, and the keel's weight keeps the boat from rolling excessively.

When it doesn't work: In large breaking seas, lying ahull is dangerous. A boat lying beam-on to a breaking wave is in the worst possible position — the wave can roll the boat, fill the cockpit, or drive the leeward rail under. The critical threshold is when the breaking wave height exceeds the beam of the boat. A 3-meter breaker hitting a 3.5-meter beam boat is survivable; a 4-meter breaker hitting the same boat may not be.

Lying ahull is a moderate-conditions tactic. It works when the wind is strong enough that you don't want to sail but the seas are not yet dangerous. As conditions worsen, lying ahull should be abandoned in favor of active tactics — running off, deploying a drogue, or lying to a sea anchor.

Many experienced offshore sailors view lying ahull as a rest stop on the way to a more active tactic, not a storm survival strategy. It is appropriate for a few hours of bad weather, not for riding out a full gale in open ocean.

Running Off Before the Storm

Running off means sailing downwind before the storm under reduced sail (or bare poles), keeping the stern to the waves. The boat uses its speed to stay ahead of or with the wave crests, reducing the relative impact of the waves on the hull.

The principle: A wave's destructive power comes from the difference between the wave's speed and the boat's speed. A wave moving at 15 knots hitting a stationary boat delivers full impact. The same wave hitting a boat moving at 8 knots in the same direction delivers half the impact. Running off reduces the relative velocity between the boat and the waves.

When to run off: Running off works when you have sea room to leeward (you're not running toward a shore) and the boat can maintain a controlled speed and course. It is an active tactic — someone must steer, the boat must be under control, and the course must be maintained.

Sail plan for running off: A small headsail alone (storm jib or deeply furled working jib) is typical. The mainsail is usually dropped — running dead downwind under mainsail risks an accidental jibe, and the mainsail raises the centre of effort too high. Some boats run under bare poles in extreme conditions, using only the windage of the hull and rig for speed.

The key advantage of running off is that the boat is moving — it feels like progress, the crew is doing something, and the relative wave impact is reduced. The key disadvantage is that it consumes sea room and requires active steering.

The Dangers: Broaching and Pitchpoling

Running off before a storm is not without risk. Two failure modes can be catastrophic: broaching and pitchpoling.

Broaching: A broach occurs when a following wave lifts the stern and pushes it to one side faster than the rudder can correct. The boat swings broadside to the wave (90 degrees to the wave direction) and is hit beam-on by the next crest. A broach in storm conditions can lead to a knockdown. The wider and flatter the stern, the more susceptible the boat is to broaching.

Pitchpoling: A pitchpole occurs when the bow buries in the back of the wave ahead while the stern is lifted by the following wave behind. The boat is literally thrown end-over-end — stern over bow. Pitchpoling is the most violent capsize and is almost always associated with excessive speed. If the boat is moving too fast for the wave conditions, the bow plunges rather than lifting over the wave ahead.

Preventing broaching: Keep the waves on the quarter (not dead astern). Steer actively and anticipate wave patterns — some waves require a course correction. Reduce speed if the boat is surfing and the stern is being pushed around.

Preventing pitchpoling: Control speed. If the boat is surfing down wave faces at hull speed or above, slow down — trail warps, deploy a drogue, or reduce sail further. The bow must lift over the back of the wave ahead, not bury into it.

The common element in both failures is excessive speed for the conditions. Speed management — keeping the boat moving but not too fast — is the central challenge of running off.

Trailing Warps to Slow the Boat

When running off under bare poles (no sails) and the boat is still going too fast, trailing warps (dragging long lines astern) provides resistance that slows the boat and helps maintain a stern-to-waves orientation.

How it works: Long bights of heavy line are streamed from the stern cleats. The drag of the line through the water slows the boat. The effect increases with the amount of line deployed. Some sailors trail a single long loop from both quarters; others stream multiple lines.

What to use: Any available heavy line — anchor rope, spare dock lines, halyards. The heavier and longer the better. A 50-meter bight of 16mm nylon provides significant drag. Some sailors tie knots in the line or attach fenders or buckets to increase resistance.

Effect on steering: Trailing warps helps keep the stern toward the waves. The drag acts as a damper on yawing, reducing the tendency to broach. The helmsman's job becomes easier — the boat responds more predictably.

Limitations: Trailing warps is a moderate-speed-reduction technique. In truly extreme conditions (50+ knots, large breaking seas), warps may not provide enough drag. This is where purpose-built drogues (series drogues, cone drogues) take over — they are designed to provide far more controlled drag than improvised warps.

A warp can foul the rudder or propeller. Secure the line to strong stern fittings and keep it clear of the stern gear. If a line catches the propeller, you've added a new emergency to an already difficult situation.