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Imax1 said..
I was under the impression that you had to use a specific mast that wouldn't work on any other sails due to different diameters and bends compared to the main three types . Apparently you can . Do you need a specific mast base with those masts ?
a few items to unpack there:
* North is pairing the aircam sails (Race/FreeRace/FoilRace) with new MDM (medium diameter) masts. these MDM masts were pioneered by Slake, from Australia, and have been used quite a bit in foil racing.
* the North version of the mast does not "flare out" at the base like the Slake masts, so yes, an MDM mast extension would be needed. (buy hey, when i switched to the Severne cambered sails i'm currently riding, i had to get new extensions too due to the portside rigging). the North mast extension is on the europin system, so unless you have us-base, no new base would be needed.
* as far as the bend curves go, i've seen data on the RDM masts that put the bend curve in the same league as NP masts 490 and under (flextop). i have not seen data for the MDM masts, and would not necessarily bank on them keeping the same curve. for example, NP says their 520 and 550 masts are CC; on the other hand, Point-7 has their 430 as "soft bottom", their 460 as CC, and their 490 as flextop.
* as far as using a different mast; someone i know tried an SDM from another brand that has quick taper. he said the sail rigged ok and aircam rotated well. he didn't say how it sailed...
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Imax1 said..
If I could swap my 6 sail quiver ,( 5.8 - 9.4 ), for 3 , it would make choosing a correct size easier.
Severne just about proposes that to you withe the Mach 6 (and yeah, you'd need new masts and extensions too):