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81data points analyzed by Sailpages.com to compile this CONTENTION 33 (PETERSON) buyer’s report
CONTENTION 33 (PETERSON)

CONTENTION 33 (PETERSON)

Southern Ocean Ltd🇬🇧· Design: Doug Peterson
from 1976
$1.8K – $4.9K est. annual maintenance
Offshore CruisermonoMasthead SloopFin
IOR 3/4 ton

Specifications

Hull

LOA32.81 ft
LWL28.5 ft
Beam10.37 ft
Draft6 ft
Displacement9,300 lb
Ballast4,233.4 lb
Hull speed1.34·√LWL7.2 kn

Rig & Sails

Iforetriangle height43.42 ft
Jforetriangle base13.75 ft
Pmainsail luff38.3 ft
Emainsail foot10 ft
FLforestay13.8 ft
Mainsail505.3 sq ft
Jib (100%)298.5 sq ft
Spinnaker507.5 sq ft

About the CONTENTION 33 (PETERSON)

3rd at 1979 3/4 ton cup.

Sailpages Buyer's Take

Designed by Doug Peterson and built by Southern Ocean Ltd (UK) in 1976, the Contention 33 is a robust, heavy-displacement cruiser with a displacement of 9300.0 lb and a comfort ratio of 21.4. While specific hull production numbers are unverified, owner reports highlight its solid construction but warn of critical age-related structural vulnerabilities.

Best for:
This boat suits experienced coastal cruisers and conservative bluewater sailors who prioritize seakeeping and comfort over speed, provided they are prepared for significant structural maintenance.
Bluewater capability:
With a low capsize ratio of 1.98 and substantial ballast of 4233.4 lb, the Contention 33 is inherently stable and well-suited for offshore passages, though its age demands rigorous structural verification before long-range cruising.
Comparables:
Comparable to other 1970s heavy-displacement fin-keel sloops like the Tartan 34 or O'Day 36, the Contention 33 shares a similar displacement-to-length ratio (179.35) and masthead sloop rig, offering comparable stability and interior volume.

Performance

Comfort21.4
Capsize1.98
SA/Disp17.8
Disp/Len179
Bal/Disp45.5

ORC Performance Data(6 certificates)

Measured performance data from ORC (Offshore Racing Congress) certificates.

Polar Diagram

24680°30°60°90°120°150°180°WIND
4kn6kn8kn10kn12kn14kn16kn20kn24knbeat VMGrun VMG

Boat speed (kn) vs. true wind angle. Source: ORC

Racing Ratings

GPH693.4 s/miOSN668.8

Triple Number

LowMedHighOffshore0.77550.98241.0779Inshore0.61100.81120.9126

ORC Measured

Displacement4593 kg (10127 lb)Wetted surface21.4 m² (231 ft²)Stability index64.6

Sail Areas (ORC)

Main22.1 m² (238 ft²)Genoa40.2 m² (433 ft²)Spinnaker80.1 m² (862 ft²)Asymmetric10.8 m² (117 ft²)

Speed Table (kn)

TWA \ TWS468101214162024
52°3.74.95.76.26.46.56.56.56.5
60°3.95.15.96.36.56.66.76.76.7
75°4.05.36.06.46.76.87.07.17.1
90°3.95.26.06.46.76.97.17.37.5
110°3.85.16.16.66.97.27.37.67.6
120°3.65.06.06.66.97.27.57.98.1
135°3.24.55.56.36.87.17.48.18.7
150°2.73.94.95.86.46.87.17.88.4
Beat VMG2.43.33.94.34.54.64.64.64.5
Run VMG2.43.44.35.05.76.26.67.27.8

Pricing

We don't have market pricing data for the CONTENTION 33 (PETERSON) yet. If you own one, help other buyers — what did you pay for it? Reports build a community price estimate over time.

Estimated Cost of Ownership

Based on 32.81ft LOA. Actual costs vary by condition, usage, and local rates.

$/ft/mo
Annual Maintenance
$1.8K – $4.9K
Hull, rigging, sails, engine service
Annual Docking
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Annual Insurance
N/A
No price data available

Known Issues & Pre-Purchase Inspection

12 reported issues across 7 systems for the CONTENTION 33 (PETERSON), compiled from owner reports in sailing forums and owner-association material.

5 critical3 major4 minor
Rigging3Deck2Rudder2Hull2Engine1Keel1Structural1

Unlock the full inspection report

Thinking of buying a CONTENTION 33 (PETERSON)? This is an in-depth report on the faults this model is known for — so you know exactly what to check when you walk the boat. For the price of a coffee.

  • All 12 specific issues — severity, symptoms & fixes
  • Model-specific pre-purchase inspection checklist
  • Downloadable PDF to take to your surveyor — yours to keep

One-time $2.99 · secure checkout by Stripe · instant access · 30 days online, PDF yours to keep

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Which engine powers your CONTENTION 33 (PETERSON)?

We haven't confirmed the engine for this model yet. If you own or know one, tell us — as owners report in, we build an accurate picture over time.

Brands sometimes mentioned for this model: Universal, Atomic 4 — is it one of these?

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Used sails that fit the CONTENTION 33 (PETERSON)

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