Fleet DNA
How the Japanese boats are built.
223 boats in the fleet. 47 ORC-rated and 176 mapped IRC entries attributed across 10 archetypes — here's how they cluster, and what the collective signature reveals about how Japan races.
Japan's fleet reads as a Farr-anchored Pacific collective with a deep-hull efficiency core and a long structural tail. DEEPFRAME leads at 17.9% (40 boats) — the deep-hull, drag-optimized platform that holds efficient flow through a range of conditions, the geometry coastal crews reach for on Tokyo Bay's mixed-breeze days — with STORMLINE close behind at 15.7% (35 boats), the rough-water specialist tuned for the steep, short chop of the Pacific outside. AEROMAX rounds the top three at 15.2% (34 boats), the power-efficiency hybrid with strong upwind drive. No single archetype dominates: all ten are populated, a full-spectrum distribution that pairs efficient coastal speed with heavier offshore inventory for the Sagami Bay swell — and the strongest structural signal sits with the design board, where Farr Design draws nearly a third of the hulls.
- DEEPFRAME 17.9% · 40 boats
- STORMLINE 15.7% · 35 boats
- AEROMAX 15.2% · 34 boats
Dimension emphasis: Hull Efficiency · Rating & Classification
The 2026 Japanese forward path runs the JSAF domestic circuit and the Kennosuke Cup as the home-water anchor — Tokyo Bay, Sagami Bay, Seto Inland Sea — with Pacific offshore destination campaigns carrying Japanese boats into Rolex Fastnet and US ocean-race venues as the international footprint. Farr Design's 32.6% concentration is the structural through-line that travels with the fleet.
DEEPFRAME
Deep-hull efficiency paired with a stiff platform for drag-optimized flow.
neutral upwind · moderate reaching · VMG downwind
Boats 40
Share 17.9%
- Swan 60
- Nautor custom
- ClubSwan 50
STORMLINE
Rough-water specialist with a hull shape optimized for steep, short waves.
moderate upwind · strong reaching · moderate downwind
Boats 35
Share 15.7%
AEROMAX
Power-efficiency hybrid with strong upwind drive and moderate displacement.
strong upwind · neutral reaching · neutral downwind
Boats 34
Share 15.2%
GRAVITYRUN
Heavy-mode momentum boat with strong downwind power in sustained breeze.
neutral upwind · moderate reaching · strong downwind
Boats 27
Share 12.1%
KEELFLEX
Narrow stability window; fast when perfectly balanced, punishing when not.
neutral upwind · moderate reaching · neutral downwind
Boats 21
Share 9.4%
AEROBLADE
Light, agile platform optimized for quick acceleration and flat-water speed.
moderate upwind · moderate reaching · neutral downwind
Boats 11
Share 4.9%
- Class 40
- IMOCA derivatives
- Pogo 30
IRONWIND
Stiff, stable-drive platform with predictable load behavior.
moderate upwind · moderate reaching · VMG downwind
Boats 10
Share 4.5%
STEELCORE
Platform-rigid hull with low heel sensitivity and high righting-moment stability.
neutral upwind · neutral reaching · neutral downwind
Boats 9
Share 4.0%
- First 40
- Bavaria C42
- Hanse 388