Monday, April 11, 2011

Design 509 - Brasil and Mackinac Classes

Originally designed for a group of South American yachtsmen and known as the Brasil Class, this was a very successful design. Notable is the winning of the first, second, fourth and fifth places in the Buenos Aires - Rio De Janeiro race of 1953.

The design was developed into a class for North America and called the Mackinac Class. Built by Fisher Boat Works of Chicago, eight initial boats were built just after the war and all named for Santa Claus' reindeer. The boats were identical with the exception of sail area, Brasil being for heavy air and Mackinac for light air.

Here are the plans. I can tell without looking that K. Aage Nielsen is the draftsman.

Here are some interior shots.

And a detailed image of the cockpit.

Principal Dimensions
LOA 40'-0"
LWL 27'-8"
Beam 10'-1"
Draft 5'-11"
Sail Area 690 sq ft


  1. I have a Brasil Class that was originally made in 1949 in Argentina. Its name was Turdemai (A-220). Do you have any more pictures of the cockpit?

  2. Please let me know how it would be possible to get a higher resolution document of the rig plan?

  3. Please email us at and we will assist you in getting a high resolution sail plan.
    Bruce Johnson

  4. I hava a Brasil class in Brasil - Paraty - RJ

  5. current photos of the winner of the race buenos aires-river in 1953. Class II Cairu Brazil / 1949

  6. Jose Carlos LodoviciJanuary 28, 2013 at 5:28 AM

    I had the pleasure to sail a few times in Sagres V (ex Cairu II) belonging to Mentor Furquin Muniz. Her home port was Santos (Iate Clube de Santos). As most of them, the boat was built at Shipyard Arataca (Karl Hoepke), in Florianopolis, Santa Catarina. The construction employed basically the braziliam woods: Peroba de Campos (bottom up to waterline and ribs), Cedro (planking above waterline), Araribá over the deck (a replacement of teak although heavier) and Spruce (mast and boom). The pity of these craft is that brass fastenings were used in them (instead Everdur) in the union of the planking to the ribs, which gave many dezincification issues in all of them. Sagres V had a Gray Marine engine and hardware by Willcox Crittenden, Merriman and something by Perko.

  7. My first more or less serious sailing experience was done on board a Brazil class, it's original name was "PIM PAM PUM" ,the story was that the owner used to take his litle boy to the shipyard in Uruguay whilst it was being built and he used to say to hos son "We're going to see how they do Pim Pam Pum (which was meant to signify the noise of the nails being hammered). Anyway this was about 35 years ago and I have very fond memories of the boat and that it was extremely well built, I remember making the crossing from Montevideo to Buenos Aires reaching with strong winds and when arriving finding dust in the bilge (not a drop of water). Unfortunately the owner passed away and I lost touch with the boat

  8. My father had the first S&S Brasil Class build in Buenos Aires in 1948-49 and race the second Buenos Aires-Rio de Janeiro, I was with the crew of six people in that race with 13 years old! We keep the boat for ten years, what he sold to other owner to race the 1959 race.
    In the 80´I brougt another boat of the same class BL 16 SINDBAD, and sail to Buenos Aires from rio de JAneiro, I renew the sail plan from slop to yawl, to sail along with my wife, again the brasilian coast and keep the boat for ten years, now with 79 years old I live in Uruguay- Edgardo Bo

    1. Hi, I have the sindbad (simbad), it´s currently in bsas. Do you have the original sail plan. Jorge Badano.-

  9. Can you please let me know the aproximate designed displacement of the Brasil class boats.
    thank you