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3data points analyzed by Sailpages.com to compile this CORONET 20 buyer’s report
CORONET 20

CORONET 20

Kempthorne Boats🇳🇿· Design: J. Brooke
from 1972
$600 – $1.6K est. annual maintenance
DaysailermonoFractional SloopVariableFull/Long

Specifications

Hull

LOA20.01 ft
LWL16.73 ft
Beam7.51 ft
Draft4 ft/ 1.48 ft min
Displacement1,821 lb
Ballast708 lb
Hull speed1.34·√LWL5.5 kn

About the CORONET 20

Sailpages Buyer's Take

The Coronet 20 is a compact fractional sloop designed by J. Brooke and built by Kempthorne Boats (NZ) in 1972. With a displacement of 1821.0 lb and a beam of 7.51 ft, this vessel represents a specific era of New Zealand boatbuilding, though the exact number of hulls built remains unknown.

Best for:
This boat is best suited for coastal cruising and daysailing, particularly for owners seeking a manageable, lightweight vessel that is easy to trailer and single-hand.
Bluewater capability:
With a low displacement of 1821.0 lb and a capsize ratio of 2.46, the Coronet 20 is not designed for serious offshore bluewater passage making but is adequate for protected coastal waters.
Comparables:
Comparable boats include other 1970s trailerable fractional sloops such as the O'Day 23 or Pearson 22, which share similar fractional rig configurations and coastal cruising roles.

Performance

Comfort10.8
Capsize2.46
SA/Disp19.0
Disp/Len174
Bal/Disp38.9

Pricing

We don't have market pricing data for the CORONET 20 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 20.01ft LOA. Actual costs vary by condition, usage, and local rates.

$/ft/mo
Annual Maintenance
$600 – $1.6K
Hull, rigging, sails, engine service
Annual Docking
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Annual Insurance
N/A
No price data available

Known Issues & Pre-Purchase Inspection

2 reported issues across 2 systems for the CORONET 20, compiled from owner reports in sailing forums and owner-association material.

1 critical1 major
Structural1Rudder1

Unlock the full inspection report

Thinking of buying a CORONET 20? 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 2 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 CORONET 20?

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.

Already know your engine? Search all engines → to find its exact parts.

Used sails that fit the CORONET 20

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