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GAASTRA Windsurf Mast SDM 60%C 2017
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LOFTSAILS Mast SDM Vision C75%

GAASTRA Windsurf Mast SDM 30%C 2017

Article no. N-GA-SAILS-2017-WINDSURF-MAST-SDM-30C | Producer: GAASTRA

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179.00 €
Before 229.00 € | You save 20.00 € |
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SDM mast from Gaastra. Features 30% carbon fibre, comes with Constant Curve (CC) bending curve.
​Diameter has been reduced, which makes rigging the sail much easier and faster. Additionally wall thickness have been increased. It makes the mast more reliable and durable. Offer very solid performance in affordable price. Works great with freeride, wave, race and freestyle sails. Recommended for entry level riders and non demanding windsurfers who are looking for solid and durable mast with very good and solid price to quality ratio.

Features

  • 30% carbon fibre
  • Constant Curve bending (CC)
  • Dedicated for freeride, freestyle and wave sails

30 kilos load the mast in the middle. The bend is measured at 1/4 and 3/4 of the mast length and exactly in the middle. In the case of hardtop masts, the mast bends in the upper part in proportion to the bend line "Constant Curve".
 

Gaastra sails have so far only worked with a very special mast curve, which made the use of external masts problematic. Designer Peter Munzlinger explains why the change now comes to the widespread Constant Curve. Below is interview with Gaastra designer for surf-magazin.

Surf: Peter, you have a long time at the hardtop bending curve, where the masts in the upper section in the ratio less bend. Why change now?

Peter: Right, we've been holding the hardtop bending curve for a long time. To determine the bending curve of masts, they are fixed at the ends and loaded at the center with 30 kilos. From the zero point, the deflection is then measured, namely at a quarter, three quarters and exactly in the middle. With our old Hardtop-Biegel lineie, the top range was less strong than with Constant Curve masts, so the top areas were stiffer. We had originally taken this mast curve from our former sailing designer Barry Spanier. The masts worked very well, because they were extremely comfortable to drive. In recent years, we have slowly modified our masts somewhat more towards Constant Curve. In 2015, we decided to change our race masts with 100 percent carbon to Constant Curve, because I simply had the design possibilities on hardtop masts simply - I had reached the limit of the feasible.

Surf: What was the limiting factor?

Peter: The Constant Curve bending curve has just opened up new possibilities for me to develop the sails further. For example, it is always difficult to generate a nice, bulging profile on a hardtop mast in the lower part of the sail, because the softer lower part always pulls some profile out of the sail. Our 2017 sails have a more pronounced, harmonious profile in the lower sail area. In this way, we achieve a better approach and transit performance while maintaining a good top speed. The change to Constant Curve was very successful, the successes of our Vapor-Racesail of the last two years speak for themselves. So we decided for 2017 to update all masts on Constant Curve. Another advantage is that we now use the most common mast bending curve. An end customer, who already has a Constant Curve mast and is thinking to buy a Gaastra sail, has to think less about the new acquisition of a suitable mast.

Surf: Does the change to Constant Curve affect all sail lines from wave to race? How does such a change take place in practice? For the design team, this means that all the sail lines have to be newly developed, right?

Peter: Yes, we have redesigned our entire mast range with Constant Curve bending curve. In practice, this means that we have modified the luffing curves for all sails. We have redesigned all sails anyway, but the adaptation to the new bending curve was a considerable additional work. The effort has definitely paid off: the feedback from our surfing stations, importers, team drivers as well as end customers is very positive. We are really very satisfied with our 2017-Gaastra range.

Surf: What should Gaastra customers pay attention to? A 2016 mast with sail from 2017 is now not ideal, right?

Peter: As already mentioned, we had already gradually moved our mast bent curve in the direction of Constant Curve. The final change was not so radical. Basically, I can say that a 2016 hardtop mast in a 2017er sail works more easily than vice versa.

Surf: So mean in the plain text: new sail with old mast goes well, old sail and new Constant Curve mast is less a tip?

Peter: Yes exactly, with camber less sails a 2017er mast in an old Gaastra sail deteriorates the slat rotation noticeably. There are less problems with camber sails: the distance between the slats and the camber, the differently thick mast diameters can be compensated, the red.) The latlet pressure and thus the rotation behaviour can easily be adjusted. However, one must also note that the performance sails such as the Race-Sail Vapor, the Freestyle sail Pure, and the Wave sail Manic, Poison and IQ are significantly more mast sensible than, for example, our Freeride Sailing Hybrid. In the models mentioned, it is always recommended to use the mast on which the sail was designed, because the full performance of the sails can only be obtained and used with the recommended original mast. In our sails for recreation and hobby areas, such as the Freeride sails Hybrid and Cross, we have designed the luffing curves somewhat more tolerant, so they also work well with external masts.

Gaastra (GA-Sails) is one of the best brand in the wind and kite market. Their philosophy has always been to provide functional equipment of the highest quality. In windsurfing Gaastra is a renowned market leader since 1980 with a stunning records in and off the water. Big names of the sports history like Robby Naish, Pete Cabrinha, Pascal Maka, Robert Teriitehau, Matt and Kevin Pritchard and many more joined the brand and led the sport.
As one of the first brands ever Gaastra applied to kitesurfing in 2001, launched as a big player and ever since pushed the limits. They follow the spirit of the time and develop the brand all the time.

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