Review of Comet 860
Basic specs.
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The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.
The boat is equipped with 5 berths.
The Comet 860 has been built with different keel alternatives.
Unknown keel type
The boat can enter even shallow marinas as the draft is just about 0.75 - 0.85 meter (2.46 - 2.76 ft) dependent on the load. See immersion rate below.
Fin keel
The Comet 860 is equipped with a fin keel. A boat with a fin keel is more manoeuvrable but has less directional stability than a similar boat with a full keel.
Comet 860 can enter even shallow marinas as the draft is just about 1.32 - 1.42 meter (4.33 - 4.63 ft) dependent on the load. See immersion rate below.
The boat may be equipped with an inboard Nanni diesel engine at 12 hp (8 kW).
Sailing characteristics
This section covers widely used rules of thumb to describe the sailing characteristics. Please note that even though the calculations are correct, the interpretation of the results might not be valid for extreme boats.
What is Capsize Screening Formula (CSF)?
The capsize screening value for Comet 860 is 1.98, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.
The immersion rate is defined as the weight required to sink the boat a certain level.
The immersion rate for Comet 860 is about 164 kg/cm, alternatively 923 lbs/inch.
Meaning: if you load 164 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 923 lbs cargo on the boat it will sink 1 inch.
Sailing statistics
This section is statistical comparison with similar boats of the same category. The basis of the following statistical computations is our unique database with more than 26,000 different boat types and 350,000 data points.
What is L/B (Length Beam Ratio)?
The l/b ratio for Comet 860 is 2.93.
SA/D (Sail Area Displacement ratio)
Indicates how fast the boat is in light wind:
- Cruising Boats have ratios 10-15
- Cruiser-Racers have ratios 16-20
- Racers have ratios above 20
- High-Performance Racers have ratios above 24
Sail-area/displacement ratio (SA/D ratio): 19.66
Maintenance
If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.
| Usage | Length | Diameter | ||
| Jib sheet | 8.5 m | (27.9 feet) | 10 mm | (3/8 inch) |
| Genoa sheet | 8.5 m | (27.9 feet) | 10 mm | (3/8 inch) |
| Mainsheet | 21.2 m | (69.6 feet) | 10 mm | (3/8 inch) |
| Spinnaker sheet | 18.7 m | (61.3 feet) | 10 mm | (3/8 inch) |
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