Question 1

What are the specs of the CASTLE 550?

Accepted Answer

The CASTLE 550 has the following specifications: 18ft LOA, 7.83ft beam, 1,102lb displacement, 397.1lb ballast. Hull type: mono. Rig: Fractional Sloop. Keel: Variable.

Question 2

Who built the CASTLE 550 and when was it made?

Accepted Answer

Built by Yachtworks (AUS), designed by Steven Douglas, first built in 1980, with production ending in 1995, 120 units were produced.

Question 3

Is the CASTLE 550 good for offshore sailing?

Accepted Answer

The CASTLE 550 is classified as a Daysailer. It has a comfort ratio of 6.61, which means it has a sportier ride, better suited for coastal and protected waters. The capsize screening ratio is 3.04, which is best suited for coastal cruising.

Question 4

How much does it cost to maintain a CASTLE 550?

Accepted Answer

Annual maintenance for a CASTLE 550 is estimated at $400 – $1.1K. This includes hull care, rigging, sails, and engine service. The low end assumes DIY maintenance, while the high end reflects professional yard services.

Question 5

How much does it cost to own a CASTLE 550 per year?

Accepted Answer

Annual cost of ownership for the CASTLE 550 (18ft) according to SailPages.com: Maintenance: $400 – $1.1K/year (hull, rigging, sails, engine service). Insurance: $500-$2000/year (based on $unknown average value). Marina slip costs by state for a 18ft boat: Florida: $3,200-$8,600/year. California: $3,000-$7,600/year. Massachusetts: $2,300-$5,000/year + $700 winter storage. New York: $2,300-$6,300/year + $700 winter storage. Maryland: $2,200-$3,900/year. Texas: $1,300-$3,900/year. Washington: $2,600-$5,600/year. Michigan: $1,300-$2,800/year + $700 winter storage. North Carolina: $1,900-$3,900/year. South Carolina: $2,800-$5,400/year. Total annual cost ranges from approximately $2K to $14K depending on location and maintenance approach. Source: SailPages.com, based on published marina rate cards and industry data.

Question 6

How much does it cost to dock a CASTLE 550?

Accepted Answer

Marina slip costs for the CASTLE 550 (18ft) by state according to SailPages.com: Florida: $3,200-$8,600/year. California: $3,000-$7,600/year. Massachusetts: $2,300-$5,000/year + $700 winter storage. New York: $2,300-$6,300/year + $700 winter storage. Maryland: $2,200-$3,900/year. Texas: $1,300-$3,900/year. Washington: $2,600-$5,600/year. Michigan: $1,300-$2,800/year + $700 winter storage. North Carolina: $1,900-$3,900/year. South Carolina: $2,800-$5,400/year. Rates are per foot per month multiplied by boat length. Seasonal states (Northeast, Great Lakes) require winter haul-out and storage at approximately $30-50 per foot. Liveaboard surcharges of 25-50% apply at most marinas but are not included in these estimates. Mooring balls are typically 40-55% less than slip costs. Source: SailPages.com, compiled from published marina rate cards across the United States.

Question 7

What are the common problems with the CASTLE 550?

Accepted Answer

SailPages.com has compiled 1 issues reported for the CASTLE 550 by owners in sailing-forum discussions and owner-association material, concentrated in keel, each rated by severity (critical, major, minor). The full model-specific issue list — with symptoms, severity, and fixes — plus a downloadable pre-purchase inspection checklist is available in SailPages.com's report for the CASTLE 550.

Question 8

What should I look for when buying a CASTLE 550?

Accepted Answer

When buying a CASTLE 550, SailPages.com has compiled 1 model-specific issues reported by owners across keel. Always hire a SAMS or NAMS accredited marine surveyor — SailPages.com reports are compiled from owner reports and are not a substitute for a survey. The downloadable report for the CASTLE 550 includes each reported issue plus a model-specific pre-purchase checklist with checkboxes, notes fields, and an overall assessment section.

Question 9

How does the CASTLE 550 compare to similar sailboats?

Accepted Answer

The CASTLE 550 is classified as a Daysailer by SailPages.com. Key metrics: 18ft LOA, comfort ratio 6.61, capsize ratio 3.04. SailPages.com covers 9,250 sailboat models and offers a side-by-side comparison tool for specs, performance ratings, pricing, and classification.

LOA	18 ft
LWL	16 ft
Beam	7.83 ft
Displacement	1,102 lb
Ballast	397.1 lb
Hull speed1.34·√LWL	5.4 kn

CASTLE 550

Specifications

Hull

About the CASTLE 550

Performance

Pricing

Estimated Cost of Ownership

Known Issues & Pre-Purchase Inspection

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