Question 1

What are the specs of the OPEN 5.70?

Accepted Answer

The OPEN 5.70 has the following specifications: 18.75ft LOA, 8.33ft beam, 5.74ft draft, 992lb displacement, 397lb ballast. Hull type: mono. Rig: Fractional Sloop. Keel: Variable.

Question 2

How much does a OPEN 5.70 cost?

Accepted Answer

The OPEN 5.70 has an average asking price of $18,000, with prices ranging from $18,000 to $18,000 based on 1 listings.

Question 3

Who built the OPEN 5.70 and when was it made?

Accepted Answer

Built by Phileas Boats (FRA), designed by Group Finot, first built in 2002.

Question 4

Is the OPEN 5.70 good for offshore sailing?

Accepted Answer

The OPEN 5.70 is classified as a Performance Racer. It has a comfort ratio of 4.85, which means it has a sportier ride, better suited for coastal and protected waters. The capsize screening ratio is 3.34, which is best suited for coastal cruising.

Question 5

How fast is the OPEN 5.70?

Accepted Answer

The OPEN 5.70 has a sail area to displacement ratio of 46.57, which indicates high performance and good speed potential. The displacement to length ratio is 67.18, making it a light displacement sailboat.

Question 6

How much does it cost to maintain a OPEN 5.70?

Accepted Answer

Annual maintenance for a OPEN 5.70 is estimated at $400 – $1.2K. This includes hull care, rigging, sails, and engine service. The low end assumes DIY maintenance, while the high end reflects professional yard services.

Question 7

How much does it cost to own a OPEN 5.70 per year?

Accepted Answer

Annual cost of ownership for the OPEN 5.70 (18.75ft) according to SailPages.com: Maintenance: $400 – $1.2K/year (hull, rigging, sails, engine service). Insurance: $150-$300/year (based on $18,000 average value). Marina slip costs by state for a 18.75ft boat: Florida: $3,400-$9,000/year. California: $3,200-$7,900/year. Massachusetts: $2,400-$5,300/year + $800 winter storage. New York: $2,400-$6,600/year + $800 winter storage. Maryland: $2,300-$4,100/year. Texas: $1,400-$4,100/year. Washington: $2,700-$5,900/year. Michigan: $1,300-$2,900/year + $800 winter storage. North Carolina: $2,000-$4,100/year. South Carolina: $2,900-$5,600/year. Total annual cost ranges from approximately $2K to $13K depending on location and maintenance approach. Source: SailPages.com, based on published marina rate cards and industry data.

Question 8

How much does it cost to dock a OPEN 5.70?

Accepted Answer

Marina slip costs for the OPEN 5.70 (18.75ft) by state according to SailPages.com: Florida: $3,400-$9,000/year. California: $3,200-$7,900/year. Massachusetts: $2,400-$5,300/year + $800 winter storage. New York: $2,400-$6,600/year + $800 winter storage. Maryland: $2,300-$4,100/year. Texas: $1,400-$4,100/year. Washington: $2,700-$5,900/year. Michigan: $1,300-$2,900/year + $800 winter storage. North Carolina: $2,000-$4,100/year. South Carolina: $2,900-$5,600/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 9

What are the common problems with the OPEN 5.70?

Accepted Answer

SailPages.com has compiled 1 issues reported for the OPEN 5.70 by owners in sailing-forum discussions and owner-association material, concentrated in rigging, 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 OPEN 5.70.

Question 10

What should I look for when buying a OPEN 5.70?

Accepted Answer

When buying a OPEN 5.70, SailPages.com has compiled 1 model-specific issues reported by owners across rigging. 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 OPEN 5.70 includes each reported issue plus a model-specific pre-purchase checklist with checkboxes, notes fields, and an overall assessment section.

Question 11

What are the sail dimensions of the OPEN 5.70?

Accepted Answer

The OPEN 5.70 has the following rig dimensions: I=21.52ft (foretriangle height), J=7.3ft (foretriangle base), P=25.33ft (mainsail luff), E=10.24ft (mainsail foot). Mainsail area: 218.6 sq ft. Jib area: 78.6 sq ft.

Question 12

How does the OPEN 5.70 compare to similar sailboats?

Accepted Answer

The OPEN 5.70 is classified as a Performance Racer by SailPages.com. Key metrics: 18.75ft LOA, comfort ratio 4.85, capsize ratio 3.34, SA/disp 46.57, average price $18,000. SailPages.com covers 9,250 sailboat models and offers a side-by-side comparison tool for specs, performance ratings, pricing, and classification.

LOA	18.75 ft
LWL	18.75 ft
Beam	8.33 ft
Draft	5.74 ft/ 0.67 ft min
Displacement	992 lb
Ballast	397 lb
Hull speed1.34·√LWL	5.8 kn

Iforetriangle height	21.52 ft
Jforetriangle base	7.3 ft
Pmainsail luff	25.33 ft
Emainsail foot	10.24 ft
FLforestay	7.3 ft
Mainsail	218.6 sq ft
Jib (100%)	78.6 sq ft
Spinnaker	133.5 sq ft

TWA \ TWS	4	6	8	10	12	14	16	20	24
52°	3.5	4.5	5.2	5.5	5.8	5.9	6.0	6.1	6.2
60°	3.6	4.7	5.3	5.6	5.9	6.1	6.3	6.4	6.5
75°	3.7	4.8	5.4	5.8	6.1	6.4	6.7	7.0	7.3
90°	3.9	5.0	5.6	6.1	6.5	6.7	7.0	8.0	8.9
110°	3.8	4.9	5.6	6.1	6.8	7.6	8.5	10.0	11.3
120°	3.7	4.8	5.5	6.0	6.6	7.4	8.9	11.3	12.7
135°	3.3	4.4	5.2	5.7	6.2	6.8	8.0	11.6	14.6
150°	2.7	3.8	4.7	5.3	5.8	6.2	6.7	9.5	12.7
Beat VMG	2.3	3.1	3.6	4.0	4.2	4.3	4.3	4.4	4.4
Run VMG	2.3	3.3	4.1	4.6	5.1	5.5	5.8	8.3	11.0

OPEN 5.70

Specifications

Hull

Rig & Sails

About the OPEN 5.70

Performance

ORC Performance Data(3 certificates)

Polar Diagram

Racing Ratings

Triple Number

ORC Measured

Sail Areas (ORC)

Speed Table (kn)

Market Price

Estimated Cost of Ownership

Articles & Reviews

Known Issues & Pre-Purchase Inspection

Unlock the full inspection report

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Which engine powers your OPEN 5.70?

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