Udkik.dk

Review of Yankee 30 [MORC configuration]


Basic specs.

sail specifications
The Yankee 30 [MORC configuration] is a sailboat designed by the American maritime architect bureau Sparkman & Stephens in the early seventies. The Yankee 30 [MORC configuration] is built by the American yard Yankee Yachts Inc..

Here we would have liked to show you nice photos of the Yankee 30 [MORC configuration].
If you have a photo you would like to share: Upload Image

Looking for a new boat? Find a Yankee 30 [MORC configuration] or similar boat for sale

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.

Interior
The boat is equipped with a galley and toilet facility.

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.

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 6.6 knots.


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 Yankee 30 [MORC configuration] is 1.75, indicating that this boat could - if evaluated by this formula alone - 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 6.4 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 Yankee 30 [MORC configuration] is about 128 kg/cm, alternatively 720 lbs/inch.
Meaning: if you load 128 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 720 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 Yankee 30 [MORC configuration] is 3.34.

Wide Slim 73% 0 50 100
Compared with other similar sailboats it is slimmer than 73% of all other designs. It seems that the designer has chosen a slightly more speedy hull design.


D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Yankee 30 [MORC configuration] is 319 which categorizes this boat among 'medium weight cruisers'.

Heavy Light 21% 0 50 100
21% of all similar sailboat designs are categorized as heavier. A heavy displacement combined with smaller water plane area has lower acceleration and is more comfortable.


SA/D (Sail Area Displacement ratio)

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

The SA/D for Yankee 30 [MORC configuration] with ISO 8666 reference sail is 16.2, with a 135% genua the SA/D is 19.6.

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


Maintenance

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 27.9 m(91.5 feet)10 mm(3/8 inch)
Jib/genoa halyard27.9 m(91.5 feet)10 mm(3/8 inch)
Spinnaker halyard27.9 m(91.5 feet)10 mm(3/8 inch)
Jib sheet 9.1 m(30.0 feet)12 mm(1/2 inch)
Genoa sheet9.1 m(30.0 feet)12 mm(1/2 inch)
Mainsheet 22.9 m(75.0 feet)12 mm(1/2 inch)
Spinnaker sheet20.1 m(66.0 feet)12 mm(1/2 inch)
Cunningham3.0 m(9.9 feet)10 mm(3/8 inch)
Kickingstrap6.0 m(19.8 feet)10 mm(3/8 inch)
Clew-outhaul6.0 m(19.8 feet)10 mm(3/8 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

We are always looking for new photos. If you can contribute with photos for Yankee 30 [MORC configuration] 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