Hidden Shape
80 boats, one archetype clear at the top.
80 boats in the fleet. 67 ORC-rated and 13 mapped IRC entries attributed across 7 archetypes — an AEROSTREAM 31.3% leader with HEFTLINE at 23.8% and SPARKFLEX at 16.3% next (71.3% across the top three), and Farr Design anchoring 20.0% of the drawing-board signature. Here's how the national fleet clusters, and what the collective signature reveals about how Australia races.
Australia races with a towering, stiff-platform top end. AEROSTREAM leads at 31.3% (25 boats) — the fleet's towering platform, level in posture over a stiff righting reserve. HEFTLINE holds the second pole at 23.8% (19), the leader's level, stiff character compressed into a compact hull, with SPARKFLEX third at 16.3% (13), minimal in scale, upright in posture, and tender in reserve. Together the top three hold 71.3% of the fleet — a structural signature that reflects the Pacific seaboard's mixed menu of Sydney coastal racing, the Tasman, and the Bass Strait crossing to Hobart.
- AEROSTREAM 31.3% · 25 boats
- HEFTLINE 23.8% · 19 boats
- SPARKFLEX 16.3% · 13 boats
Dimension emphasis: Hull Efficiency · Crew
Farr Design anchors 20.0% of the 80-boat national fleet — the most-represented drawing-board footprint — with the broader Pacific-seaboard menu shaping a towering, stiff-platform signature. The competitive anchor is the Rolex Sydney Hobart, where MIN RIVER took the overall IRC corrected-time win at the 2025 edition; abroad, the lone Australian entry at the ORC World Championship 2026 in Sorrento — VUDU, a Botin-designed TP-52 — took Class 0 silver, 2.5 points behind the champion.
AEROSTREAM
Towering scale · level posture · stiff reserve — measured downwind advantage in banked race evidence.
strong upwind · weak reaching · strong downwind
Boats 25
Share 31.3%
HEFTLINE
Compact scale · level posture · stiff reserve — reaching-neutral in banked race evidence.
moderate upwind · moderate reaching · moderate downwind
Boats 19
Share 23.8%
SPARKFLEX
Minimal scale · upright posture · tender reserve — downwind-constrained in banked race evidence.
weak upwind · moderate reaching · weak downwind
Boats 13
Share 16.3%
- J-80 OD
- J-24
- J-70 ONE DESIGN
AEROCORE
Large scale · upright posture · tender reserve — measured downwind advantage in banked race evidence.
neutral upwind · neutral reaching · neutral downwind
Boats 8
Share 10.0%
- First 36
- Bavaria CR 46
- J-120
AEROFORCE
Large scale · level posture · neutral reserve — reaching-constrained in banked race evidence.
neutral upwind · weak reaching · neutral downwind
Boats 1
Share 1.3%
- First 40.7
- X-43
- Grand Soleil 40