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76data points analyzed by Sailpages.com to compile this ENDURANCE 37 buyer’s report
ENDURANCE 37

ENDURANCE 37

Freedom Yacht Inc.· Design: Peter Ibold
$51,820 avg$48,000 – $55,000 (3 listings)from 1974
$2.2K – $5.7K est. annual maintenance
Bluewater CruisermonoCutterFull/Long

Specifications

Hull

LOA35.29 ft
LWL26.67 ft
Beam11 ft
Draft5 ft
Displacement18,000 lb
Ballast4,399.2 lb
Hull speed1.34·√LWL6.9 kn

About the ENDURANCE 37

Same as ENDURANCE 35 w/cutter rig and different interior.

Sailpages Buyer's Take

Designed by Peter Ibold and built by Freedom Yacht Inc., the Endurance 37 is a robust cruising cutter with a production run limited to 1974. With a displacement of 18000.0 lb and a comfort ratio of 39.0, this vessel is engineered for stability and seakeeping rather than high-speed planing.

Best for:
This boat is best suited for serious coastal cruisers and offshore adventurers who prioritize a heavy, stable platform over speed, particularly those seeking a cutter rig for versatile sail handling.
Bluewater capability:
With a low capsize ratio of 1.68 and a high displacement-to-length ratio of 423.6, the Endurance 37 is well-regarded for bluewater cruising due to its heavy displacement and full/long keel design.
Comparables:
Comparable vessels include the Tartan 37 and O'Day 38, which share similar displacement and full-keel characteristics from the mid-1970s, offering comparable interior volume and offshore capability.

Performance

Comfort39.0
Capsize1.68
SA/Disp15.5
Disp/Len424
Bal/Disp24.4

ORC Performance Data(1 certificate)

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

Polar Diagram

24680°30°60°90°120°150°180°WIND
6kn8kn10kn12kn14kn16kn20knbeat VMGrun VMG

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

Racing Ratings

GPH723.4 s/miOSN700.6

Triple Number

LowMedHighOffshore0.71300.94051.0647Inshore0.55360.75230.8825

ORC Measured

Displacement8844 kg (19501 lb)Wetted surface31.4 m² (338 ft²)Stability index142.4

Sail Areas (ORC)

Main31.9 m² (344 ft²)Genoa48.6 m² (524 ft²)Spinnaker95.2 m² (1025 ft²)

Speed Table (kn)

TWA \ TWS681012141620
52°4.35.15.76.26.56.66.7
60°4.65.46.16.56.76.86.9
75°4.85.76.36.76.97.17.3
90°4.85.76.56.87.07.27.5
110°4.95.96.77.07.37.57.8
120°4.85.86.67.07.37.68.0
135°4.45.46.36.87.17.48.0
150°3.84.85.66.46.87.17.7
Beat VMG2.83.33.74.14.34.44.4
Run VMG3.34.24.95.66.26.77.2

Estimated Value

Low Confidence
Based on 3 listings
Low
$42,438
Estimated Value
$42,735
High
$44,396
Inflation-adjusted to 2026 USD

Estimated Cost of Ownership

Based on 35.29ft LOA. Actual costs vary by condition, usage, and local rates.

$/ft/mo
Annual Maintenance
$2.2K – $5.7K
Hull, rigging, sails, engine service
Annual Docking
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Known Issues & Pre-Purchase Inspection

13 reported issues across 8 systems for the ENDURANCE 37, compiled from owner reports in sailing forums and owner-association material.

6 critical4 major3 minor
Rigging4Deck2Hull2Rudder1Engine1Keel1Plumbing1Structural1

Unlock the full inspection report

Thinking of buying a ENDURANCE 37? 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 13 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 ENDURANCE 37?

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: Yanmar, Perkins, Bukh — is it one of these?

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Used sails that fit the ENDURANCE 37

Checking eBay for sails sized to this boat's rig…