How to plan an Atlantic crossing: the route, weather, systems, safety gear, sails, spares, watches, provisions and practical failure control.
A safe Atlantic crossing begins months before departure. The classic westbound passage runs for about 5,000 kilometres (2,700 nautical miles) from the Canary Islands to the Caribbean and takes an average cruising yacht around 18 to 21 days. The checklist must cover far more than safety equipment. It must test the route, crew, sails, steering, energy production, water supply, communications, food storage and repair capability as one operating system. The strongest crews reduce sail early, inspect for chafe every watch and preserve several ways to steer, navigate, communicate, pump water and generate electricity. They carry food for a delayed arrival and keep potable water outside the watermaker’s production chain. At Privilège Marine, we see an ocean-going catamaran as both a bluewater yacht and a home. The crossing plan must protect both functions. The real standard is simple: the boat must still work tired, at night and after its first equipment failure.
The Route Must Be Chosen Before It Is Optimised
The classic westbound Atlantic crossing starts in the Canary Islands and finishes in the Lesser Antilles. The Atlantic Rally for Cruisers sails from Las Palmas de Gran Canaria to Rodney Bay, Saint Lucia. Its route covers about 5,000 kilometres (2,700 nautical miles), and the average yacht completes it in 18 to 21 days. The 2026 ARC is scheduled to depart on November 22.
A second option runs through Mindelo in Cabo Verde. This divides the passage into two offshore legs and allows the yacht to refuel, reprovision and make final repairs. It also creates another departure decision. A stop becomes valuable only when it supports the plan rather than adding pressure to leave on a fixed date.
The passage plan should cover the entire voyage from berth to berth. The International Maritime Organization divides voyage planning into appraisal, detailed planning, execution and continuous monitoring. That means studying the yacht’s limitations, weather, charts, currents, traffic, ports, reporting systems and emergency alternatives before departure.
The route file should contain:
- The intended route and acceptable deviations.
- Areas of increased traffic or fishing activity.
- Minimum fuel and water thresholds.
- Alternative Caribbean landfalls.
- Medical diversion options.
- Weather-routing criteria.
- Conditions that would delay departure.
- Daily position-reporting procedures.
- Passport, registration, insurance and crew documentation.
A route drawn by routing software remains a forecast. It should never become an instruction that overrides the sea in front of the yacht.
The Departure Window Must Follow the Weather
The official Atlantic hurricane season runs from June 1 to November 30. Tropical systems can still form outside those dates. The climatological peak occurs around September 10, with most activity concentrated between mid-August and mid-October.
This explains the traditional late-November departure from the Canary Islands. It does not make every late-November day suitable.
A safe departure requires a genuine weather window. The crew should examine the position of the Azores High, the development of the north-easterly trade winds, swell direction, frontal activity north of the route and any tropical disturbance leaving the African coast.
Use several sources. Compare GRIB models with synoptic charts and official forecasts. Obtain professional routing when the skipper lacks the experience to interpret model disagreement. Keep receiving weather after departure through satellite communications, SSB radio or another proven offshore system.
The eastbound crossing follows a different logic. A Caribbean-to-Europe passage normally uses spring weather systems and often routes through the Azores. It requires its own plan and should never be treated as the westbound route in reverse.
The Yacht Must Complete a Crossing Before Departure
A marina test proves that equipment starts. An offshore trial proves that the yacht can operate continuously.
Several months before departure, complete a technical survey of the rig, steering, propulsion, electrical system, safety equipment and all underwater fittings. Follow it with an offshore shakedown long enough to run every major system under realistic loads.
Test both engines at cruising revolutions. Check cooling-water flow, exhaust temperature, belt tension, alternator output, saildrive seals and fuel quality. Open and close every seacock. Test every bilge alarm. Run the watermaker, generator, air-conditioning, refrigeration, radar, autopilot and satellite systems together.
Record actual electricity consumption over 24 hours. A theoretical energy budget is insufficient. The figures must include the autopilot, navigation electronics, refrigeration, communications, pumps and domestic loads used during a real passage.
A Privilège is designed as a true bluewater catamaran, with structural strength, engineering reliability and long-term use at the centre of the project. The same discipline must continue in operation. Salt, heat, vibration and continuous loading affect even high-quality equipment.
The technical plan should preserve redundancy in five critical areas:
- Steering.
- Electrical generation.
- Navigation.
- Communications.
- Fresh water.
One spare component rarely creates redundancy. A complete alternative function does. A spare autopilot display is useless when the failed part is the hydraulic drive. A second chartplotter offers little protection when both units depend on the same power supply and GPS antenna.
The Safety Equipment Must Be Reachable in Seconds
Safety equipment belongs where the crew can reach it during an emergency. It should never sit beneath provisions, luggage or tools.
The World Cruising Club’s 2026 requirements call for an offshore liferaft large enough for everyone aboard. On a multihull, it should remain deployable when the yacht is upright or inverted. The raft must be accessible and ready to launch within 15 seconds. A registered 406 MHz EPIRB with internal GPS is also required, along with long-range communications, DSC VHF, a handheld VHF, AIS and personal AIS crew-overboard beacons.
Every person should have a properly fitted lifejacket with a light, whistle, spray hood, crotch strap, harness and personal beacon. Jacklines should allow movement from the cockpit to working areas with minimal clipping and unclipping. Crew should be able to connect their tether before stepping outside.
The rule at night is one hand for the boat. Clip on before leaving the protected area. Nobody goes forward without informing the watchkeeper. In deteriorating conditions, nobody goes alone.
The yacht also needs a tested crew-overboard recovery system. Finding the casualty solves only half the problem. The crew must be able to lift an exhausted or unconscious person over a high freeboard. Practise with a realistic weight before departure.
A multihull should carry pumping arrangements for each hull and watertight compartment. The 2026 ARC requirements specify an emergency pumping capacity of at least 200 litres per minute (3,200 US gallons per hour). They also require an emergency tiller or independent steering method and a proven way to steer with a rudder disabled or missing.
The Sail Plan Must Reduce Loads Before Trouble Starts
An Atlantic crossing is usually a downwind passage, yet downwind sailing creates its own failures. Sails remain loaded for days. Sheets rub against blocks, stanchions and guardrails. Preventers cycle under shock loads. Squalls can add wind rapidly during darkness.
A catamaran provides less heeling feedback than a monohull. The crew must reef according to wind speed, sea state and equipment loads rather than waiting for discomfort.
The standing order should be reef early. A conservative sail plan is usually faster over an entire passage because it reduces fatigue, damage and emergency manoeuvres.
Inspect the following at least once per watch:
- Mainsail battens, cars and reefing points.
- Genoa sheets and furling line.
- Downwind sail tack, head and clew.
- Preventers and boom attachments.
- Halyards at mast exits and sheaves.
- Blocks, shackles and soft connections.
- Guardrails near loaded lines.
- Trampoline and forward lashings.
Move a line before its cover is cut through. Add chafe protection where a lead cannot be changed. Mark high-load lines with tape so that movement becomes visible. Chafe control is one of the cheapest forms of offshore reliability.
Carry a storm jib and either a storm trysail or a third mainsail reef that substantially reduces area. The World Cruising Club also strongly recommends a drogue or sea anchor for severe conditions. The correct equipment, attachment points and deployment method must be validated for the individual yacht before departure.
The Spares Must Match the Failures You Can Repair
The spare-parts inventory should reflect the yacht’s exact equipment. Generic boxes of screws create weight without solving the most likely failures.
For the engines and generator, carry fuel and oil filters, impellers, belts, suitable lubricants, coolant, hoses, hose clamps, electrical relays and starter components. Carry the tools needed to change them in a moving engine room.
For the water system, include pump diaphragms, pressure switches, filter cartridges, connectors and a complete repair kit for the watermaker. For the electrical system, carry fuses, breakers, cable, terminals, heat-shrink material, a crimping tool and a reliable multimeter.
For the rig and deck equipment, carry spare sheets, low-stretch line, webbing, sail-repair materials, shackles, soft shackles, blocks and replacement fasteners.
The autopilot deserves special attention. It may steer for hundreds of hours. Carrying a second pilot with an independent drive is stronger than carrying only electronic spares. Balance the sail plan so the pilot works lightly. Excessive pilot activity is often a sail-trim warning before it becomes an equipment failure.
Store spares by system. Label every container. Maintain a searchable inventory showing location, quantity and part number. The person repairing a pump at 03:00 should not have to empty five lockers to find the seal.
The Watch System Must Protect Human Performance
Fatigue creates poor decisions long before it creates sleep.
The skipper should establish the watch system during the shakedown passage. Every watchkeeper must be able to steer, trim sails, use radar and AIS, reef, start an engine, make a distress call and wake the skipper early.
Three or more competent watchkeepers make rest easier to protect. Two-person crews need stricter routines because each person carries more continuous responsibility. The exact system may use two-hour, three-hour or rotating watches. The schedule should provide predictable sleep rather than theoretical equality.
Night instructions should define when to wake the skipper. Examples include:
- A wind increase beyond the agreed limit.
- A squall approaching the route.
- A vessel with an uncertain closest point of approach.
- A sail, steering or electrical alarm.
- A change in barometric pressure.
- Any doubt about the yacht’s position or condition.
The best standing order is direct: wake the skipper while the situation is still easy.
The Food Plan Must Survive a Delayed Arrival
Provision from a written menu. Plan three meals a day, snacks and a 20% reserve for slower progress or an unexpected diversion. The World Cruising Club also recommends a mixture of fresh, frozen and ambient food because refrigeration and freezers can fail.
Use fresh produce first. Inspect fruit and vegetables every day. Remove damaged items immediately. Keep onions and potatoes separated. Protect eggs from movement and store dry goods in sealed containers.
Prepare several meals before departure and freeze them in flat portions. They are easier to stack, defrost quickly and reduce galley work during the first days, when seasickness is most likely.
Keep a complete ambient-food reserve that requires little water and minimal cooking. Include food that crew will eat when tired or unwell. A nutritionally perfect meal has no value when nobody can prepare it in a rough sea.
Store heavy supplies low and near the yacht’s centre. Secure every bottle, tin and appliance. Divide essential food between more than one locker so that a leak or access problem does not compromise the whole supply.
The Water Plan Must Assume the Watermaker Stops
A watermaker increases comfort and autonomy. It should never become the only source of drinking water.
European Food Safety Authority reference values place adequate total daily water intake at 2 litres for women and 2.5 litres for men under normal conditions. Heat, physical work, seasickness and illness can increase requirements. Passage planning must also include cooking and medical needs.
Measure the crew’s real consumption during the shakedown passage. Carry enough tanked water to manage a meaningful watermaker failure. Add sealed emergency containers stored separately from the main tanks.
The emergency grab bag should contain additional drinking water. World Cruising Club guidance recommends 2 litres per person in a sealed container, or a hand-operated desalinator with suitable containers.
Monitor tank levels manually as well as electronically. Tank senders fail. Taste water before transferring it. A contaminated tank can remove a large part of the yacht’s reserve in one mistake.
The Daily Routine Finds Small Failures Early
Complete a daily systems round at the same time each day.
Inspect the bilges, engines, rudders, steering gear, batteries, charging sources, water tanks, rig, sail attachments, deck fittings and safety equipment. Log pressures, temperatures, engine hours, fuel use, water production and battery state.
Look for changes rather than obvious failures. A small quantity of belt dust, a warmer electrical connection, a rising pump-cycle frequency or a few drops beneath a shaft seal may provide days of warning.
The most common offshore problems are often manageable when found early:
A chafed line should be rerouted or replaced before its core is exposed. A struggling autopilot calls for sail balancing and early investigation. A charging failure requires immediate load reduction and isolation of reserve capacity. A watermaker fault should trigger water conservation before the tanks become low. A small sail tear should be repaired before the next squall enlarges it.
Crew problems deserve the same attention. Treat seasickness early under an agreed medical plan. Protect sleep. Encourage regular meals and hydration. Resolve tension before fatigue turns it into conflict.
The Crossing Is Won Through Preparation, Not Equipment Volume
A serious Atlantic crossing checklist does not aim to carry a second yacht in spare parts. It creates a yacht and crew capable of adapting when one part of the system stops working.
The route must leave room for weather. The sail plan must control loads. The energy system must support essential functions after one charging source fails. The water plan must survive without daily production. The watch system must keep judgement intact.
Privilège catamarans are designed to cross oceans safely while remaining true homes at sea. That comfort becomes an operational advantage when storage is organised, machinery is accessible, working areas are protected and the crew can rest properly.
The Atlantic rarely demands heroism. It asks for disciplined decisions repeated for several weeks. The strongest crossing is usually the quietest one: fewer urgent repairs, fewer exhausted manoeuvres and no pressure to defend a schedule that the weather has already rejected.
