Comments on: Arrow Design by Charles Detriche

By: Administrator

Administrator — Sat, 11 Aug 2007 17:09:35 +0000

The 3.78 kg corresponds to the volume of the hull shell only.

The fin and the rudder will displace some additional volume, but I haven’t got the calculation here right now..

The bulb however will contribute significantly. 2400g of lead which weighs 11.3kg/m^3 will displace about 0.21 m^3 which corresponds to 0.21 kg. That puts the total at 3.78+0.21 = 3.99 kg
most bulbs are not pure lead, I’ve measured about 10.5kg/m^3 for the alloy we use - so you should be fine displacement wise.

Anders

By: John Bartram

John Bartram — Sat, 11 Aug 2007 06:31:04 +0000

Anders,
after returning from Toulouse (France) recently I have become interested in the Arow as shown on your website. I had the god fortune to sail several of them at the local club and I was thiking it make make a good generic IOM for my local club here in Sydney Australia. I am concerned thqt the displacement on the drawing is stated as 3.78kgs? With an al up weight of 4kg’s would it sit a little to low in the water.

I would appreciate your thoughts on this matter prior to building one. Many Thanks

John Bartram
Sydney Australia

By: francisco noelli

francisco noelli — Tue, 21 Nov 2006 12:53:36 +0000

Congratulations on the boat design! We need free contributions like this in Brazil.

chico

By: Administrator

Administrator — Sun, 30 Oct 2005 13:51:10 +0000

Thanks Tony, I think a blog-format website should work OK for archiving all the bits and pieces of information that I have accumulated on various websites over the years.

Anders

By: Tony Fannin

Tony Fannin — Sun, 30 Oct 2005 09:16:02 +0000

Anders

Congratulations on the new site. It looks fantastic.

Regards
Tony Fannin

Gold Coast
Australia