Fleet DNA
How the Sydney Hobart fleet is built.
70 boats in the fleet. 49 ORC-rated and 21 mapped IRC entries attributed across 7 archetypes — 69 classified, and one boat not yet classified in the public archetype model.
AEROSTREAM leads the Sydney Hobart fleet outright at 38.6% (27 boats) — the towering-scale, stiff-reserve family whose strong upwind bias fits the long beat south. AEROCORE is the second force on the start line at 24.3% (17 boats) — large-scale, upright-postured hulls on a tender righting reserve — and together the two lead names carry 62.9% of the fleet, a two-family front rank rather than a broad field. AEROFORCE follows at 10.0% (7 boats), with LEANRUN at 8.6% (6 boats) and HEFTLINE at 7.1% (5) heading a structural tail that keeps seven of the archetype model’s eight words populated across the 70-boat fleet.
- AEROSTREAM 38.6% · 27 boats
- AEROCORE 24.3% · 17 boats
- AEROFORCE 10.0% · 7 boats
Dimension emphasis: Comparative Time · RM / Displacement · Sail Drive
Farr Design is the fleet’s most-common drawing board at 17.1% (12 boats) in a fleet spread across many design offices. Top classes: Sydney 38 and TP-52 (4 each), with First 34.7 and First 40 at three hulls each. The 81st edition starts Boxing Day 2026 under the same Bass Strait weather clock the fleet has been reading for eighty years.
The full archetype distribution.
AEROSTREAM
Towering scale · level posture · stiff reserve — measured downwind advantage in banked race evidence.
strong upwind · weak reaching · strong downwind
Boats 27
Share 38.6%
AEROCORE
Large scale · upright posture · tender reserve — measured downwind advantage in banked race evidence.
neutral upwind · neutral reaching · neutral downwind
Boats 17
Share 24.3%
- 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 7
Share 10.0%
- First 40.7
- X-43
- Grand Soleil 40
HEFTLINE
Compact scale · level posture · stiff reserve — reaching-neutral in banked race evidence.
moderate upwind · moderate reaching · moderate downwind
Boats 5
Share 7.1%
LEANRUN
Large scale · upright posture — downwind-neutral in banked race evidence.
neutral upwind · neutral reaching · neutral downwind
Boats 6
Share 8.6%
- First 36.7
- J-109
- First 35
SPARKFLEX
Minimal scale · upright posture · tender reserve — downwind-constrained in banked race evidence.
weak upwind · moderate reaching · weak downwind
Boats 1
Share 1.4%
- J-80 OD
- J-24
- J-70 ONE DESIGN
AEROSTREAM’s 38.6% share leads the fleet outright — AEROCORE follows at 24.3%, with AEROFORCE at 10.0%, LEANRUN at 8.6%, and HEFTLINE at 7.1% behind them. The Sydney Hobart fleet says something specific about what the Bass Strait demands: a front rank of large-scale hulls led by AEROSTREAM’s strong upwind bias for the long beat south, backed by a structural tail that keeps seven of the archetype model’s eight words populated in this fleet.