COMET 770
Specifications
Hull
| LOA | 25.25 ft |
| LWL | 18.5 ft |
| Beam | 8.67 ft |
| Draft | 4.75 ft |
| Displacement | 3,550 lb |
| Ballast | 1,549.9 lb |
| Hull speed1.34·√LWL | 5.8 kn |
About the COMET 770
Originally designed as an IOR 1/4 ton racer.
The Comet 770 is a compact, performance-oriented cruiser designed by Groupe Finot and built by Comar (ITA) between 1973 and 1978. With a displacement of 3550.0 lb and a D/L ratio of 250.3, this 25.25 ft vessel represents a lightweight, fin-keel design from the early 1970s.
- Best for:
- This boat suits coastal cruisers and weekend racers who prioritize speed and agility over heavy offshore comfort, given its low displacement and high SA/D ratio of 23.09.
- Bluewater capability:
- With a capsize ratio of 2.28 and a comfort ratio of 15.05, the Comet 770 is best suited for protected coastal waters rather than extended bluewater passages due to its light displacement and narrow beam.
- Comparables:
- Comparable boats include the O'Day 23 and Pearson 23, which share similar dimensions and eras, though the Comet 770 distinguishes itself with a lighter displacement and higher sail area for better upwind performance.
Performance
ORC Performance Data(2 certificates)
Measured performance data from ORC (Offshore Racing Congress) certificates.
Polar Diagram
Boat speed (kn) vs. true wind angle. Source: ORC
Racing Ratings
Triple Number
ORC Measured
Sail Areas (ORC)
Speed Table (kn)
| TWA \ TWS | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 20 | 24 |
|---|---|---|---|---|---|---|---|---|---|
| 52° | 3.5 | 4.6 | 5.3 | 5.6 | 5.7 | 5.7 | 5.7 | 5.7 | 5.5 |
| 60° | 3.7 | 4.8 | 5.4 | 5.7 | 5.8 | 5.9 | 5.9 | 5.9 | 5.9 |
| 75° | 3.8 | 4.9 | 5.5 | 5.8 | 6.0 | 6.1 | 6.2 | 6.3 | 6.3 |
| 90° | 3.7 | 4.8 | 5.5 | 5.8 | 6.1 | 6.3 | 6.5 | 6.7 | 6.8 |
| 110° | 3.5 | 4.6 | 5.5 | 5.9 | 6.2 | 6.5 | 6.8 | 7.2 | 7.4 |
| 120° | 3.3 | 4.5 | 5.3 | 5.8 | 6.2 | 6.5 | 6.9 | 7.7 | 8.2 |
| 135° | 2.9 | 4.1 | 5.0 | 5.6 | 6.0 | 6.4 | 6.7 | 7.7 | 9.4 |
| 150° | 2.5 | 3.5 | 4.5 | 5.2 | 5.7 | 6.1 | 6.4 | 7.2 | 8.4 |
| Beat VMG | 2.2 | 3.0 | 3.6 | 3.9 | 4.0 | 4.0 | 4.0 | 3.9 | 3.5 |
| Run VMG | 2.1 | 3.1 | 3.9 | 4.6 | 5.2 | 5.6 | 5.9 | 6.6 | 7.3 |
Pricing
We don't have market pricing data for the COMET 770 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 25.25ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
We don't have enough data on the COMET 770yet to publish model-specific findings we'd stand behind — but here's a free general inspection checklist, built from our research into what actually goes wrong on boats of this kind.
Drawn from 7,029 documented issues across 2,391 models, ordered so the areas that most often turn up problems come first.
Own a COMET 770? Reports from owners are what turn this into a model-specific checklist — and they're the reason the boats above it have one.
Similar Sailboats
Which engine powers your COMET 770?
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 COMET 770
Checking eBay for sails sized to this boat's rig…