Question 1

What are the specs of the SIGMA 38 (S&S)?

Accepted Answer

The SIGMA 38 (S&S) has the following specifications: 38.33ft LOA, 10.25ft beam, 5.92ft draft, 19,025lb displacement, 6,700.6lb ballast. Hull type: mono. Rig: Masthead Sloop. Keel: Fin.

Question 2

Who built the SIGMA 38 (S&S) and when was it made?

Accepted Answer

Built by Cheoy Lee Shipyard Ltd.(HK), designed by Sparkman & Stephens, first built in 1967.

Question 3

Is the SIGMA 38 (S&S) good for offshore sailing?

Accepted Answer

The SIGMA 38 (S&S) is classified as a Bluewater Cruiser. It has a comfort ratio of 43.08, which means it is very comfortable in a seaway, suitable for extended offshore passages. The capsize screening ratio is 1.54, which is excellent for offshore sailing.

Question 4

How fast is the SIGMA 38 (S&S)?

Accepted Answer

The SIGMA 38 (S&S) has a sail area to displacement ratio of 14.92, which indicates a more conservative sail plan focused on comfort over speed. The displacement to length ratio is 408.39, making it a heavy displacement sailboat.

Question 5

How much does it cost to maintain a SIGMA 38 (S&S)?

Accepted Answer

Annual maintenance for a SIGMA 38 (S&S) is estimated at $2.6K – $6.9K. This includes hull care, rigging, sails, and engine service. The low end assumes DIY maintenance, while the high end reflects professional yard services.

Question 6

How much does it cost to own a SIGMA 38 (S&S) per year?

Accepted Answer

Annual cost of ownership for the SIGMA 38 (S&S) (38.33ft) according to SailPages.com: Maintenance: $2.6K – $6.9K/year (hull, rigging, sails, engine service). Insurance: $500-$2000/year (based on $unknown average value). Marina slip costs by state for a 38.33ft boat: Florida: $6,900-$18,400/year. California: $6,400-$16,100/year. Massachusetts: $4,800-$10,700/year + $1,500 winter storage. New York: $4,800-$13,400/year + $1,500 winter storage. Maryland: $4,600-$8,300/year. Texas: $2,800-$8,300/year. Washington: $5,500-$12,000/year. Michigan: $2,700-$5,900/year + $1,500 winter storage. North Carolina: $4,100-$8,300/year. South Carolina: $6,000-$11,500/year. Total annual cost ranges from approximately $6K to $32K depending on location and maintenance approach. Source: SailPages.com, based on published marina rate cards and industry data.

Question 7

How much does it cost to dock a SIGMA 38 (S&S)?

Accepted Answer

Marina slip costs for the SIGMA 38 (S&S) (38.33ft) by state according to SailPages.com: Florida: $6,900-$18,400/year. California: $6,400-$16,100/year. Massachusetts: $4,800-$10,700/year + $1,500 winter storage. New York: $4,800-$13,400/year + $1,500 winter storage. Maryland: $4,600-$8,300/year. Texas: $2,800-$8,300/year. Washington: $5,500-$12,000/year. Michigan: $2,700-$5,900/year + $1,500 winter storage. North Carolina: $4,100-$8,300/year. South Carolina: $6,000-$11,500/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 8

What are the common problems with the SIGMA 38 (S&S)?

Accepted Answer

SailPages.com has compiled 6 issues reported for the SIGMA 38 (S&S) by owners in sailing-forum discussions and owner-association material, concentrated in structural, plumbing, rudder, safety, sails, 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 SIGMA 38 (S&S).

Question 9

What should I look for when buying a SIGMA 38 (S&S)?

Accepted Answer

When buying a SIGMA 38 (S&S), SailPages.com has compiled 6 model-specific issues reported by owners across structural, plumbing, rudder, safety, sails. 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 SIGMA 38 (S&S) includes each reported issue plus a model-specific pre-purchase checklist with checkboxes, notes fields, and an overall assessment section.

Question 10

What are the sail dimensions of the SIGMA 38 (S&S)?

Accepted Answer

The SIGMA 38 (S&S) has the following rig dimensions: I=45.55ft (foretriangle height), J=14.7ft (foretriangle base), P=38.1ft (mainsail luff), E=17.2ft (mainsail foot). Mainsail area: 688.7 sq ft. Jib area: 334.8 sq ft.

Question 11

How does the SIGMA 38 (S&S) compare to similar sailboats?

Accepted Answer

The SIGMA 38 (S&S) is classified as a Bluewater Cruiser by SailPages.com. Key metrics: 38.33ft LOA, comfort ratio 43.08, capsize ratio 1.54, SA/disp 14.92. SailPages.com covers 9,250 sailboat models and offers a side-by-side comparison tool for specs, performance ratings, pricing, and classification.

LOA	38.33 ft
LWL	27.5 ft
Beam	10.25 ft
Draft	5.92 ft
Displacement	19,025 lb
Ballast	6,700.6 lb
Hull speed1.34·√LWL	7.0 kn

Iforetriangle height	45.55 ft
Jforetriangle base	14.7 ft
Pmainsail luff	38.1 ft
Emainsail foot	17.2 ft
FLforestay	14.7 ft
Mainsail	688.7 sq ft
Jib (100%)	334.8 sq ft
Spinnaker	569.1 sq ft

TWA \ TWS	6	8	10	12	14	16	20
52°	5.1	6.0	6.7	7.0	7.2	7.3	7.3
60°	5.3	6.3	6.9	7.2	7.4	7.5	7.5
75°	5.6	6.5	7.1	7.3	7.5	7.7	7.9
90°	5.5	6.6	7.2	7.5	7.6	7.8	8.2
110°	5.5	6.7	7.3	7.6	7.9	8.2	8.6
120°	5.3	6.5	7.2	7.6	7.9	8.3	8.9
135°	4.8	5.9	6.8	7.3	7.7	8.0	8.8
150°	4.0	5.1	6.0	6.8	7.3	7.6	8.3
Beat VMG	3.3	4.0	4.5	4.9	5.0	5.1	5.2
Run VMG	3.5	4.4	5.2	6.0	6.6	7.2	7.8

SIGMA 38 (S&S)

Specifications

Hull

Rig & Sails

Performance

ORC Performance Data(3 certificates)

Polar Diagram

Racing Ratings

Triple Number

ORC Measured

Sail Areas (ORC)

Speed Table (kn)

Pricing

Estimated Cost of Ownership

Known Issues & Pre-Purchase Inspection

Unlock the full inspection report

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