Review of Ensenada 20

Basic specs.

The Ensenada 20 also known as RK 20 is a small sailboat designed by the American maritime architect Lyle C. Hess in the early seventies. The Ensenada 20 is built by the American yard Coastal Recreation Inc..

Here we would have liked to show you nice photos of the Ensenada 20.
If you have a photo you would like to share: Upload Image

Looking for a new boat? Find an Ensenada 20 or similar boat for sale

Rig

The Ensenada 20 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

Swing keel

The Ensenada 20 is equipped with a swing keel. A swing keel is a pivoting lifting keel, allowing to sail both coastal and inland waters.

The boat can enter even shallow marinas as the draft is just about 0.53 - 0.63 meter (1.74 - 2.04 ft) dependent on the load. See immersion rate below.

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 Ensenada 20 is 2.42, 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 5.6 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 Ensenada 20 is about 77 kg/cm, alternatively 431 lbs/inch.
Meaning: if you load 77 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 431 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 Ensenada 20 is 9.9.

Comparing this ratio with similar sailboats show that it is more comfortable than 27% 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 Ensenada 20 is 2.82.

Compared with other similar sailboats it is slimmer than 62% 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 Ensenada 20 is 34%.

This ballast ratio shows a righting moment that is higher than 38% of all similar sailboat designs. A righting moment (ability to resist heeling) just below average.

D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Ensenada 20 is 133 which categorizes this boat among 'ultra light racers'.

76% 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 Ensenada 20 with ISO 8666 reference sail is 23.3, with a 135% genua the SA/D is 27.0.

The SA/D ratio indicates that it is faster than 88% of all similar sailboat designs in light wind.

Over- / underrigged

The Ensenada 20 has more rig than 96% 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 14m² (150 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.

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**
Usage	Length		Diameter
Mainsail halyard	20.3 m	(66.6 feet)	6 mm	(1/4 inch)
Jib/genoa halyard	20.3 m	(66.6 feet)	6 mm	(1/4 inch)
Spinnaker halyard	20.3 m	(66.6 feet)	6 mm	(1/4 inch)
Jib sheet	6.1 m	(20.0 feet)	8 mm	(5/16 inch)
Genoa sheet	6.1 m	(20.0 feet)	8 mm	(5/16 inch)
Mainsheet	15.2 m	(50.0 feet)	8 mm	(5/16 inch)
Spinnaker sheet	13.4 m	(44.0 feet)	8 mm	(5/16 inch)
Cunningham	2.6 m	(8.7 feet)	6 mm	(1/4 inch)
Kickingstrap	5.3 m	(17.3 feet)	6 mm	(1/4 inch)
Clew-outhaul	5.3 m	(17.3 feet)	6 mm	(1/4 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 Ensenada 20 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

[Ref 1]: ISO 8666 Small craft — Principal data.
[Ref 3]: ISO 12215-5 Small craft — Hull construction and scantlings.