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Review of Allmand 35 Pilot House


Basic specs.

sail specifications
The Allmand 35 Pilot House is a sailboat designed by the maritime architect Walter H. Scott in the early eighties. Only a few boats have been produced. The Allmand 35 Pilot House is built by the American yard Allmand Boats Inc..

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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.


Keel

The Allmand 35 Pilot House 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 even shallow marinas as the draft is just about 1.49 - 1.59 meter (4.89 - 5.19 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 Allmand 35 Pilot House is 2.04, 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 7.1 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 Allmand 35 Pilot House is about 204 kg/cm, alternatively 1147 lbs/inch.
Meaning: if you load 204 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1147 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 Allmand 35 Pilot House is 23.1.

Low High 31% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 31% 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 Allmand 35 Pilot House is 2.97.

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


D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Allmand 35 Pilot House is 239 which categorizes this boat among 'light crusers & offshore racers'.

Heavy Light 58% 0 50 100
58% 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 Allmand 35 Pilot House with ISO 8666 reference sail is 16.1, with a 135% genua the SA/D is 19.3.

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.


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 33m2 (355 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.

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 29.0 m(95.0 feet)12 mm(1/2 inch)
Jib/genoa halyard29.0 m(95.0 feet)12 mm(1/2 inch)
Spinnaker halyard29.0 m(95.0 feet)12 mm(1/2 inch)
Jib sheet 10.6 m(34.7 feet)14 mm(0.55 inch)
Genoa sheet10.6 m(34.7 feet)14 mm(0.55 inch)
Mainsheet 26.5 m(86.9 feet)14 mm(0.55 inch)
Spinnaker sheet23.3 m(76.4 feet)14 mm(0.55 inch)
Cunningham3.8 m(12.5 feet)12 mm(1/2 inch)
Kickingstrap7.6 m(25.0 feet)12 mm(1/2 inch)
Clew-outhaul7.6 m(25.0 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 Allmand 35 Pilot House 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