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Review of Tripp 40


Basic specs.

sail specifications
The Tripp 40 is a large sailboat designed by the American maritime architect William Tripp, III in the early nineties. The Tripp 40 is built by the American yard Carroll Marine Ltd..

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Hull

The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.


Interior

The boat is equipped with 95.0 liter fresh water capacity.


Rig

The Tripp 40 is equipped with a fractional rig. A fractional rig has smaller headsails which make tacking easier, which is an advantage for cruisers and racers, of course. The downside is that having the wind from behind often requires a gennaker or a spinnaker for optimal speed.


Keel

Fin keel

The Tripp 40 is equipped with a fin keel. The fin keel is the most common keel and provides splendid manoeuvrability. The downside is that it has less directional stability than a long keel.

The keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.

The boat can only enter major marinas as the draft is about 2.29 - 2.39 meter (7.51 - 7.81 ft) dependent on the load. See immersion rate below.


Engine

The Tripp 40 has been equipped with different engine alternatives.

Alternative 1:

Tripp 40 may be equipped with an inboard Yanmar 3GM30F diesel engine at 30 hp (22 kW). Calculated max speed is about 6.8 knots

Alternative 2:

The boat may be equipped with an inboard Yanmar diesel engine

The fuel tank has a capacity of 95.0 liters (25 US gallons, 20 imperial gallons).


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.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for Tripp 40 is 2.08, indicating that this boat would not be accepted to participate in ocean races.


Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 7.9 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.


Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Tripp 40 is about 263 kg/cm, alternatively 1473 lbs/inch.
Meaning: if you load 263 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1473 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.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Tripp 40 is 3.33.

Wide Slim 54% 0 50 100
Compared with other similar sailboats it is slimmer than 54% of all other designs. It seems that the designer has chosen a slightly more speedy hull design.


Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for Tripp 40 is 45%.

Low High 79% 0 50 100
This ballast ratio shows a righting moment that is higher than 79% of all similar sailboat designs. A righting moment (ability to resist heeling) significantly above average.


D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Tripp 40 is 129 which categorizes this boat among 'ultra light racers'.

Heavy Light 92% 0 50 100
92% of all similar sailboat designs are categorized as heavier. A light displacement requires less sailarea and has higher accellerations.


SA/D (Sail Area Displacement ratio)

What is SA/D (Sail Area Displacement ratio)?

The SA/D for Tripp 40 with ISO 8666 reference sail is 24.0, with a 135% genua the SA/D is 27.4.

Low High 98% 0 50 100
The SA/D ratio indicates that it is faster than 98% of all similar sailboat designs in light wind.


Over- / underrigged

Low High 85% 0 50 100
The Tripp 40 has more rig than 85% of all similar sailboats, which indicates that the boat is significantly overrigged.


Maintenance

Bottom Paint

When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 48m2 (516 ft2).
Based on this, your favourite maritime shop can tell you the quantity you need.

Note: If you use a paint roller you will need more paint than if you use a paintbrush.


Rig

Dimensions of sail for fractional rig.

mainsail specifications headsail specifications

Are your sails worn out? You might find your next sail here: Sails for Sale



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.



Guiding dimensions of running rig
UsageLengthDiameter
Mainsail halyard 40.1 m(131.7 feet)12 mm(1/2 inch)
Jib/genoa halyard40.1 m(131.7 feet)12 mm(1/2 inch)
Spinnaker halyard40.1 m(131.7 feet)12 mm(1/2 inch)
Jib sheet 12.3 m(40.3 feet)14 mm(0.55 inch)
Genoa sheet12.3 m(40.3 feet)14 mm(0.55 inch)
Mainsheet 30.7 m(100.6 feet)14 mm(0.55 inch)
Spinnaker sheet27.0 m(88.6 feet)14 mm(0.55 inch)
Cunningham5.6 m(18.5 feet)12 mm(1/2 inch)
Kickingstrap11.3 m(37.0 feet)12 mm(1/2 inch)
Clew-outhaul11.3 m(37.0 feet)12 mm(1/2 inch)

Boat owner's ideas

This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.

Do you have changes/improvements you would like to share? Upload a photo and describe what you have done.



Finally

We are always looking for new photos. If you can contribute with photos for Tripp 40 it would be a great help.

If you have any comments to the review, improvement suggestions, or the like, feel free to contact us. Criticism helps us to improve.



References