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Review of Morgan 30 Mk II


Basic specs.

sail specifications
The Morgan 30 Mk II is a sailboat designed by the maritime architect Charles Morgan in the early seventies. The Morgan 30 Mk II is built by the American yard Morgan Yacht Corp..

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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. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.

Rig
The boat equipped with a masthead rig. The advantage of a masthead rig is its simplicity and the fact that a given sail area - compared with a fractional rig - can be carried lower and thus with less heeling moment.

Keel

The Morgan 30 Mk II 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 boat can enter most marinas as the draft is just about 1.60 - 1.70 meter (5.25 - 5.55 ft) dependent on the load. See immersion rate below.


Engine

The boat is typically equipped with an inboard Universal Atomic 4 gasoline engine at 30.0 hp (22 kW), which gives a max speed about 6.8 knots.

The fuel tank has a capacity of 53.0 liters (14 US gallons, 11 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 Morgan 30 Mk II is 2.10, 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 7.0 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 Morgan 30 Mk II is about 193 kg/cm, alternatively 1084 lbs/inch.
Meaning: if you load 193 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1084 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.

Motion Comfort Ratio

What is Motion Comfort Ratio (MCR)?

The Motion Comfort Ratio for Morgan 30 Mk II is 21.6.

Low High 42% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 42% of all similar sailboat designs. This comfort value is just below average.


L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Morgan 30 Mk II is 2.60.

Slim Wide 92% 0 50 100
Compared with other similar sailboats it is more spacy than 92% of all other designs. It seems that the designer has chosen a significantly more spacy hull design.


Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for Morgan 30 Mk II is 50%.

Low High 92% 0 50 100
This ballast ratio shows a righting moment that is higher than 92% 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 Morgan 30 Mk II is 214 which categorizes this boat among 'light crusers & offshore racers'.

Heavy Light 69% 0 50 100
69% 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 Morgan 30 Mk II with ISO 8666 reference sail is 17.3, with a 135% genua the SA/D is 20.9.

Low High 66% 0 50 100
The SA/D ratio indicates that it is faster than 66% of all similar sailboat designs in light wind.


Over- / underrigged

Low High 31% 0 50 100
The Morgan 30 Mk II has more rig than 31% of all similar sailboats, which indicates that the boat is slightly underrigged.


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 32m2 (344 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 masthead 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 30.2 m(99.2 feet)8 mm(5/16 inch)
Jib/genoa halyard30.2 m(99.2 feet)8 mm(5/16 inch)
Spinnaker halyard30.2 m(99.2 feet)8 mm(5/16 inch)
Jib sheet 9.0 m(29.4 feet)10 mm(3/8 inch)
Genoa sheet9.0 m(29.4 feet)10 mm(3/8 inch)
Mainsheet 22.4 m(73.5 feet)10 mm(3/8 inch)
Spinnaker sheet19.7 m(64.7 feet)10 mm(3/8 inch)
Cunningham3.4 m(11.0 feet)8 mm(5/16 inch)
Kickingstrap6.7 m(22.0 feet)8 mm(5/16 inch)
Clew-outhaul6.7 m(22.0 feet)8 mm(5/16 inch)

Boat owner's ideas

This section shown boat owner's changes, improvements, etc. Here you might find inspiration for your boat.

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



Finally

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



References