Thanks Cdog, yeah I'm not sure why things had to get personal. Why waste the time? Why not focus on something more meaningful? Would you tell a musician not to play music just because you don't like it, or tease an artist for choosing to pursue a passion that doesn't always make the most money? You must have such a meaningful and lucrative career that you can attack others for how they chose to spend their time. Good for you, Jan:)
As for your Breze, no I didn't sense any irony or humor in Jan's post. I found it to be ignorant [technically] and personally attacking. I also sense sarcasm in your comment... come on what? Cedrus is the same thickness as Axis, and I guarantee you within the next few years masts will be much thicker than they are now, because brands will finally realize that in order to control these 1m+ wingspan foils you NEED stiffness and strength which you can ONLY get with thickness. So laugh at me all you want, but Project Cedrus is ahead of the curve and the 100+ people who have purchased the mast say their wings fly better as a result. Worried about drag? Do the math, if you can. The mast a very small component of total foil drag, with most coming from the wings (parasitic AND lift-induced drag). You can increase mast drag 10-20-30% and I guarantee you won't even feel the difference with the modern large wings. Race foils, sure. That's why on the homepage of the site it says not for racing! That being said, some people who've ridden the mast say it's actually faster than thinner masts because it's stiffer and easier to control, allowing the rider to push the limits a little more. Any more ignorant, sarcastic comments from you, Breze? Or do you race at 40kts and demand a super thin mast?
Back the technology, to address weight and water ingress congress. The mast is completely sealed at each end with aluminum fittings that also serve as the mechanical interface to the board and fuselage. These aluminum parts are anodized using a very specific process and primed with a material to ensure a long-lasting bond and no galvanic corrosion. The mast is fully sealed, no water gets in or out. I suppose any moisture in the air captured during the close-out process could condense on the inside when it's really cold outside, but this water won't hurt anything and will simply re-evaporate when temps increase. We are talking micrograms of water, not enough slosh around or add any weight. Speaking of weight, the 90cm mast with plate mount is 1.2kg, which is half of whatever you are riding @windfreak. It will not float when attached to fuselage/wings, unless the wings are super bouyant. I do not make a carbon fuselage because the wing interface changes to frequently and the tooling is too expensive. Also the fuselage is simply less material, so it's harder to save weight at a justifiable cost. It also needs to have all the threaded connections and attachments to wings, and more material is necessary at these connection points to manage these interface loads.
Happy to field any additional technical questions regarding composites or mast design. But no more personal attacks or ignorant comments please.