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Review of Avance 36


Avance 36
Avance 36.

Basic specs.

sail specifications
The Avance 36 is a sailboat designed by the Swedish maritime architect Peter Norlin in the late seventies. The Avance 36 is built by the Finnish yard AB Öja Båtar.

Looking for a new boat? Find an Avance 36 or similar boat for sale

Hull

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

The deck is a sandwich construction which improves the indoor climate. Especially when the water is colder than the air in the cabin, then the double hull insulates against cold water and reduce the condense water in the cabin.


Interior

The interior is like most other boats made of teak. Teak has the advantage of being naturally very oily and therefore water-repellent, which is suitable on boats.
The boat is equipped with 6 berths, a galley, 100.0 liter fresh water capacity and toilet facility.

Note: the boat has also been sold to be self-made/-interiored, which means that the quality of each boat may vary.


Rig

The Avance 36 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

The Avance 36 has been built with different keel alternatives.

Fin keel

One option is 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 iron. Many people prefer lead keel in favour of iron. The main argument is that lead is much heavier than iron and a lead keel can therefore be made smaller which again result in less wet surface, i.e. less drag. In fact iron is quite heavy, just 30% less heavy than lead, so the advantage of a lead keel is often overstated. As the surface of a fin type keel is just a fraction of the total wet surface, the difference between an iron keel and a lead keel can in reality be ignored for cruising yachts.

Avance 36 can only enter major marinas as the draft is about 1.82 - 1.92 meter (5.97 - 6.27 ft) dependent on the load. See immersion rate below.

Fin keel

Another option is 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.

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 1.82 - 1.92 meter (5.97 - 6.27 ft) dependent on the load. See immersion rate below.


Engine

The Avance 36 has been equipped with different engine alternatives.

Alternative 1:

The boat may be equipped with an inboard Volvo Penta diesel engine

Alternative 2:

Avance 36 may be equipped with an inboard Bukh DV20 diesel engine at 20 hp (14 kW). The speed is 7.5 knots.

The fuel tank, which is made of steel, has a capacity of 70.0 liters (18 US gallons, 15 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 Avance 36 is 1.59, 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 7.3 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 Avance 36 is about 166 kg/cm, alternatively 931 lbs/inch.
Meaning: if you load 166 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 931 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 Avance 36 is 28.2 - 31.0.

Low High 73% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 73% of all similar sailboat designs. This comfort value is just above average.


L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Avance 36 is 3.91.

Wide Slim 98% 0 50 100
Compared with other similar sailboats it is slimmer than 98% of all other designs. It seems that the designer has chosen a significantly more speedy hull design. This type of design is also referred to as 'needle'.


Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for Avance 36 is 49%.

Low High 90% 0 50 100
This ballast ratio shows a righting moment that is higher than 90% 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 Avance 36 is 196 which categorizes this boat among 'light racers'.

Heavy Light 76% 0 50 100
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 Avance 36 with ISO 8666 reference sail is 16.3, with a 135% genua the SA/D is 18.9.

Low High 42% 0 50 100
The SA/D ratio indicates that it is faster than 42% of all similar sailboat designs in light wind.


Over- / underrigged

Low High 34% 0 50 100
The Avance 36 has more rig than 34% of all similar sailboats, which indicates that the boat is slightly underrigged.


RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for Avance 36 is 54

Slow Fast 54% 0 50 100
The relative speed performance is 54 which means that a it is faster than 54% of all similar sailboat designs.


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 31m2 (333 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 genoa specifications spinnaker 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 35.3 m(115.8 feet)12 mm(1/2 inch)
Jib/genoa halyard35.3 m(115.8 feet)12 mm(1/2 inch)
Spinnaker halyard35.3 m(115.8 feet)12 mm(1/2 inch)
Jib sheet 10.8 m(35.4 feet)14 mm(0.55 inch)
Genoa sheet10.8 m(35.4 feet)14 mm(0.55 inch)
Mainsheet 27.0 m(88.5 feet)14 mm(0.55 inch)
Spinnaker sheet23.7 m(77.9 feet)14 mm(0.55 inch)
Cunningham4.0 m(13.1 feet)12 mm(1/2 inch)
Kickingstrap8.0 m(26.2 feet)12 mm(1/2 inch)
Clew-outhaul8.0 m(26.2 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 Avance 36 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