Review of Patago 45

The hull is made of aluminium. Aluminum is strong and forgiving. Where an impact on a fiberglass hull will result in major gelcoat damage and possible cracking, an aluminum hull will probably only have a scratch or a small bend. The only concern is electrolysis. Ensure that you have proper sacrificial anodes installed. Finally, aluminium is not prone to osmosis.

The boat is equipped with 2 cabins, 5 berths and 651 liters (171 US gallons, 143 imperial gallons) fresh water capacity.

The Patago 45 is built with a masthead rig. The sail area for the mailsail + jib is 101.9 m² (1,097.1 ft²). 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.

Drop keel

The Patago 45 is built with a drop keel. A drop keel is a lifting keel that can be lowered and raised vertically, allowing the boat to enter shallow waters as well.

The boat can enter even shallow marinas as the draft is just about 0.95 - 1.05 meter (3.12 - 3.42 ft) dependent on the load. See immersion rate below.

What is Capsize Screening Formula (CSF)?

The capsize screening value for Patago 45 is 1.82, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 8.4 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.

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Patago 45 is about 344 kg/cm, alternatively 1929 lbs/inch.
Meaning: if you load 344 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1929 lbs cargo on the boat it will sink 1 inch.

What is Motion Comfort Ratio (MCR)?

The Motion Comfort Ratio for Patago 45 is 32.0.

What is L/B (Length Beam Ratio)?

The l/b ratio for Patago 45 is 3.19.

What is a Ballast Ratio?

The ballast ratio for Patago 45 is 31%.

What is Displacement Length Ratio?

The DL-ratio for Patago 45 is 204 which categorizes this boat among 'light crusers & offshore racers'.

SA/D (Sail Area Displacement ratio)
Indicates how fast the boat is in light wind:
- Cruising Boats have ratios 10-15
- Cruiser-Racers have ratios 16-20
- Racers have ratios above 20
- High-Performance Racers have ratios above 24
Sail-area/displacement ratio (SA/D ratio): 18.74

When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 64m² (688 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.

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.

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.

We are always looking for new photos. If you can contribute with photos for Patago 45 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.