A-Class: DNA sails by Landenberger

DNA’s Main is made by Landenberger-Sailing. Photo by Eva Fagnoli / www.evarte.it
Landy gives us an insight of this new sail that powered the new DNA to an excellent debut.
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“The sail in the DNA photos is the 2010 Maxx. This is one of the two standard designs we offer outside of the custom built A class sails we build to the customer’s wishes.
The maxx sail is built from Maxx 06 Aramid from Contender Sailcloth.
The sail has glued seams and features very small batten pockets with carbon fiber battens and screw in adjusters.
Is more than 1.5 kg’s lighter than similar sails offered by other producers. The fiber layout of the Maxx cloth allows us to work with panel rotation to make the leech work in the desired way. In all the sail is light, powerful and easy to control.
(Roeland displayed exceptional downwind speed on the new DNA)

The other standard design is the RC10 radial cut pentex sail. Both the Maxx 2010 and the RC10 have the same outlines, and batten layouts. The most noticeable feature of these sails is the gaff head. The raised head batten helps to reduce tip vortex turbulence. The head width is no longer the largest in the fleet but I maintain one of the key principles is to keep the leech straight. With the foot length of the sail being governed by the distance between the beams, there is a limit on how big in the head you can go maintaining a straight leech. The sails with extra large head sizes start to have hollow leeches. While it is possible to make these sails work the load paths in these sails show a large section of the upper leech and head is unsupported. This only makes the sail more unstable and difficult to trim throughout the varying conditions.
The standard designs we offer are stable and easy to use. Each sail is fitted to the individual mast data of each customer, so the end result is a fast sail which is easy to trim under racing conditions. “
Andrew Landenberger
Landenberger-Sailing.com
Photo: Eva Fagnoli – www.evarte.it