ce que dit north sur le sujet
![Image](http://www.north-windsurf.com/media/transfer/img/14_mast_feature5.png)
NEW MAST MEASURING METHOD
for significantly improved bend curves and increased breakage strength
The industry standard IMCS mast check method meanwhile is over 30 years old. The bend curve families Flex Top, Hard Top and Constant Curve are set too wide and un-precise for modern performance sails. A so-called Constant Curve mast that almost corresponds to a Hard Top mast has nothing in common with a Constant Curve mast, which is close to a Flex Top mast. In order to clearly document that the bend curve of all our masts lies between these two extremes, from now on we label this curve with MEDIUM.CONSTANT.CURVE. Through the introduction of a new type of hydraulic mast measurement system with digital control technology (combined bend curve and crash check) now it’s possible to adjust the bend curve over the whole length and find ways to improve the breaking strength. Ongoing tests thus guarantee a reliable quality control.
Thanks to our new mast measuring and our refined IMCS system, we were able to analyze the masts of all other brands. This allows us to say exactly how good NorthSails masts work with other brand sails or which masts from other manufacturers are compatible with NorthSails.
Compatibility
NorthSails compatible masts/sails: Aerotech / Avanti Sails / Ezzy Sails / Goya Sails / Gun Sails / Hot Sails / KA Sails / Loft Sails / Maui Sails / Naish Sails / Sailloft / Sailworks / Severne
NorthSails partly compatible masts/sails (at about 30-40% performance loss): Challenger Sails / Point 7 / RRD / Simmer Style / XO Sails
NorthSails incompatible masts/sails:
HARD TOP: F2 Sails / Gaastra / Vandal
FLEX TOP: Hot Sails / Tushingham / Neil Pryde / Attitude Sails