Hidden Shape
81 boats, one archetype clear at the top.
81 boats in the fleet. 67 ORC-rated and 14 mapped IRC entries attributed across 7 archetypes — an AEROSTREAM 29.6% leader with HEFTLINE at 24.7% and SPARKFLEX at 16.0% next (70.4% across the top three), and Farr Design anchoring 21.0% 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 29.6% (24 boats) — the fleet's towering platform, level in posture over a stiff righting reserve. HEFTLINE holds the second pole at 24.7% (20), the leader's level, stiff character compressed into a compact hull, with SPARKFLEX third at 16.0% (13), minimal in scale, upright in posture, and tender in reserve. Together the top three hold 70.4% 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 29.6% · 24 boats
- HEFTLINE 24.7% · 20 boats
- SPARKFLEX 16.0% · 13 boats
Dimension emphasis: Hull Efficiency · Crew
Farr Design anchors 21.0% of the 81-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 — downwind-neutral in race results.
neutral upwind · weak reaching · weak downwind
Boats 24
Share 29.6%
HEFTLINE
Compact scale · level posture · stiff reserve — measured upwind advantage in race results.
moderate upwind · moderate reaching · moderate downwind
Boats 20
Share 24.7%
SPARKFLEX
Minimal scale · upright posture · tender reserve — downwind-constrained in race results.
neutral upwind · moderate reaching · moderate downwind
Boats 13
Share 16.0%
- J-80 OD
- J-24
- J-70 ONE DESIGN
AEROCORE
Large scale · tender reserve — downwind-neutral in race results.
neutral upwind · neutral reaching · neutral downwind
Boats 8
Share 9.9%
- First 36
- Bavaria CR 46
- J-120
AEROFORCE
Large scale · level posture · neutral reserve — measured reaching advantage in race results.
weak upwind · weak reaching · weak downwind
Boats 2
Share 2.5%
- First 40.7
- X-43
- Grand Soleil 40