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ONBOARD CARD 07 - Mid-Ocean Transition Zone

Phase: Post-Stream south wall to ~200 nm from Bermuda (approximately 31–35°N) Typical elapsed time: Race start +48–65h

UNFAMILIAR BOAT NOTES - READ THIS FIRST

This crew is racing Lupo Di Mare together for the first time. The following protocols are adjusted for that reality.

1. Fatigue is now a first-order tactical input At hour 48–65, this crew has not slept well on a boat they don't know. A sail change worth 0.15 kts that requires 15 minutes of complex crew work is usually not worth it. Apply this test explicitly before initiating any maneuver: is the gain real, is it sustained, and is the crew cost worth it? Most of the time at this phase, the answer is no.

2. Navigator needs uninterrupted time This phase is when the current picture and wind forecast most need re-evaluation. The navigator cannot do that work while also helming, trimming, or managing crew. This is not the time to put the navigator on the wheel. Protect their time at the chart table.

3. Resist the urge to over-manage Racing 300+ miles from home with tired crew on an unfamiliar boat, the temptation to do something - any maneuver, any course change, any sail swap - is high. Resist it. VMG consistency in this phase beats constant intervention. Hold course, hold sail, trust the plan.

4. Rest windows matter more than speed windows If a rest window and a small speed opportunity conflict, choose rest. The final 200 nm to Bermuda will demand alert crew for layline decisions, approach conditions, and possible squall response. Arrive there with people who have slept.

PRIMARY OBJECTIVE

Maintain consistent VMG toward Bermuda, manage any warm-core eddy in the path, and execute the pre-planned routing for the Sargasso Sea segment.

DATA TO CHECK

Every 4–6 hours: - GPS/log current vector: note any persistent set in unexpected direction (warm eddy signature) - Wind trend: fading, stable, building? Compare to pre-race forecast. - Boat speed vs polar target: if significantly below, check for adverse current

Key question at this phase: is the "Bermuda parking lot" starting to develop? - If wind <8 kts and fading with no forecast improvement in 12h: likely yes - Accept it; do not burn crew

TRIM / SAIL IMPLICATIONS

This leg is often the sail inventory test. Possible scenarios:

Conditions Sail
12–20 kts reaching A2-1 / Code 65
8–12 kts light reaching Code 65 or A1-1
20–28 kts reaching A3
6–10 kts, S or SE wind Upwind options (J1 / Code 65)
<6 kts, drifting A1-1 or J1, patience

Mid-ocean is where fatigue compounds sail change errors. If a sail change is worth less than 0.2 kts for less than 2 hours, skip it and rest the crew.

FATIGUE MANAGEMENT

This is day 3 of the race. The crew has not slept fully on a boat they are still learning. Fatigue is not a soft concern - it is a tactical input that affects decision quality, sail change execution quality, and safety.

Watch rotation intensity: - Maintain strict watch rotation; do not pull crew off rest for marginal opportunities - Avoid all-hands evolutions in this phase unless the maneuver is clearly worth >0.3 kts sustained gain - If a watch is depleted and there is no urgent tactical need: let the off-watch sleep longer

Maneuvers to skip vs pursue: - Skip: peeling from one asym to another for <0.2 kts gain; sail changes in deteriorating conditions where the gain is unclear - Pursue: a meaningful wind shift that requires a gybe for >1 kt VMG gain; a WCE detour that the navigator confirms saves >2 hours

Signs of crew fatigue affecting performance: - Slow or hesitant responses to sail trim calls - Repeated questions about what we're doing and why - Unnecessary deck motion or congregation at the helm - If you see these: simplify the sail plan, reduce maneuver frequency, and protect rest time

TACTICAL PATIENCE

At this phase, every hour brings you closer to a result that was largely set by the first 48 hours of racing. The temptation to over-manage is highest here and the payoff is lowest. Apply these principles:

  1. Hold the plan. Unless the navigator identifies a meaningful change in the wind or current picture, the routing plan from race start should still be the plan.
  2. Don't chase - boats that appear ahead on AIS or fleet tracker may be in a different class with different corrected-time implications. Do not abandon your routing to chase visible traffic.
  3. One decision per period. Limit major tactical decisions (sail changes, course changes) to once per watch rotation unless a clear opportunity or threat demands otherwise.
  4. Commit. Once a decision is made, sail it fast. Re-litigating decisions with tired crew is corrosive.

WHO GETS WOKEN UP

  • Navigator: GPS/log current showing persistent >1 kt in unexpected direction (eddy check)
  • Skipper: wind below 5 kts for >3 hours with boats catching up from behind

PRE-RACE RESEARCH - NOT race-period routing advice