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post #1 of Old 03-09-2011 Thread Starter
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Lightbulb Beneteau First 40 compared to Wauquiez Centurion 40s

Greetings. I was overlaying the hull shapes of a Wauquiez Centurion 40s with other boats to see what it is similar to - as I own one and I wanted to see what it compares to.

The First 40 seem identical in profile and plan views. I did this simply using the diagrams given in the specifications.

My question: Is it a coincidence that two different models from two different manufactures seem so similar. The rigging is different but not too different to an untrained eye.

Anyone have an idea how the two would compare in performance handling.

Here are the specs: First 40, Centurion 40s

Length Overall (m) 12.58 12.55
Length Waterline (m) 10.67 11.1
Beam Max (m) 3.89 3.85
Draft (m) 2.45 2.35
Ballast (Kg) 3000 2760
Light Displacement (Kg) 7900 7600
Main Sail m^2 50 52
I (m) 16.5 15.69
J (m) 4.6 4.32
P (m) 16.11 15
E (m) 5.54 5.9

First 40 Specs at

Centurion 40 Specs at Download Download: Spec_C40s_07_2006.pdf - Untitled

First 40 has a 0.81m taller rig
First 40 has 0.1m more draft
First 40 has 240Kg more in the keel
First 40ís main has a higher aspect ratio but 2 square meters less
First 40ís has a higher aspect keel (ie. narrower keel)
First 40 mast is more aft
First 40 rudder is a little more forward

Here are the overlays:

1st Overlay with the First 40 opaque and on top

2nd Overlay with the First 40 a little transparent

3rdd Overlay with the First 40 a little more transparent again. Note the profiles seem identical

4th Overlay with the First 40 completely transparent leaving the Centurion 40s

Plan view Overlay
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