Question 1

What are the specs of the ROSS 780?

Accepted Answer

The ROSS 780 has the following specifications: 25.58ft LOA, 8.08ft beam, 5.92ft draft, 2,490lb displacement, 1,011.9lb ballast. Hull type: mono. Rig: Fractional Sloop. Keel: Variable.

Question 2

Who built the ROSS 780 and when was it made?

Accepted Answer

Built by Austin - Hopwood Boats (NZ), designed by Murray Ross, first built in 1980, 70 units were produced.

Question 3

Is the ROSS 780 good for offshore sailing?

Accepted Answer

The ROSS 780 is classified as a Performance Racer. It has a comfort ratio of 9.93, which means it has a sportier ride, better suited for coastal and protected waters. The capsize screening ratio is 2.39, which is best suited for coastal cruising.

Question 4

How fast is the ROSS 780?

Accepted Answer

The ROSS 780 has a sail area to displacement ratio of 25.58, which indicates high performance and good speed potential. The displacement to length ratio is 88.45, making it a light displacement sailboat.

Question 5

How much does it cost to maintain a ROSS 780?

Accepted Answer

Annual maintenance for a ROSS 780 is estimated at $1.0K – $2.7K. 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 ROSS 780 per year?

Accepted Answer

Annual cost of ownership for the ROSS 780 (25.58ft) according to SailPages.com: Maintenance: $1.0K – $2.7K/year (hull, rigging, sails, engine service). Insurance: $500-$2000/year (based on $unknown average value). Marina slip costs by state for a 25.58ft boat: Florida: $4,600-$12,300/year. California: $4,300-$10,700/year. Massachusetts: $3,200-$7,200/year + $1,000 winter storage. New York: $3,200-$9,000/year + $1,000 winter storage. Maryland: $3,100-$5,500/year. Texas: $1,800-$5,500/year. Washington: $3,700-$8,000/year. Michigan: $1,800-$3,900/year + $1,000 winter storage. North Carolina: $2,800-$5,500/year. South Carolina: $4,000-$7,700/year. Total annual cost ranges from approximately $3K to $20K 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 ROSS 780?

Accepted Answer

Marina slip costs for the ROSS 780 (25.58ft) by state according to SailPages.com: Florida: $4,600-$12,300/year. California: $4,300-$10,700/year. Massachusetts: $3,200-$7,200/year + $1,000 winter storage. New York: $3,200-$9,000/year + $1,000 winter storage. Maryland: $3,100-$5,500/year. Texas: $1,800-$5,500/year. Washington: $3,700-$8,000/year. Michigan: $1,800-$3,900/year + $1,000 winter storage. North Carolina: $2,800-$5,500/year. South Carolina: $4,000-$7,700/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 ROSS 780?

Accepted Answer

SailPages.com has compiled 2 issues reported for the ROSS 780 by owners in sailing-forum discussions and owner-association material, concentrated in structural, 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 ROSS 780.

Question 9

What should I look for when buying a ROSS 780?

Accepted Answer

When buying a ROSS 780, SailPages.com has compiled 2 model-specific issues reported by owners across structural. 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 ROSS 780 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 ROSS 780?

Accepted Answer

The ROSS 780 has the following rig dimensions: I=25.75ft (foretriangle height), J=8.5ft (foretriangle base), P=28.75ft (mainsail luff), E=12.75ft (mainsail foot). Mainsail area: 307.4 sq ft. Jib area: 109.4 sq ft.

Question 11

How does the ROSS 780 compare to similar sailboats?

Accepted Answer

The ROSS 780 is classified as a Performance Racer by SailPages.com. Key metrics: 25.58ft LOA, comfort ratio 9.93, capsize ratio 2.39, SA/disp 25.58. SailPages.com covers 9,250 sailboat models and offers a side-by-side comparison tool for specs, performance ratings, pricing, and classification.

LOA	25.58 ft
LWL	23.25 ft
Beam	8.08 ft
Draft	5.92 ft/ 0.92 ft min
Displacement	2,490 lb
Ballast	1,011.9 lb
Hull speed1.34·√LWL	6.5 kn

Iforetriangle height	25.75 ft
Jforetriangle base	8.5 ft
Pmainsail luff	28.75 ft
Emainsail foot	12.75 ft
FLforestay	8.5 ft
Mainsail	307.4 sq ft
Jib (100%)	109.4 sq ft
Spinnaker	186 sq ft

ROSS 780

Specifications

Hull

Rig & Sails

Performance

Pricing

Estimated Cost of Ownership

Known Issues & Pre-Purchase Inspection

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