Yesterday I got to try the first new One Ocean 100cm mast in combination with my prototype 890 cm2 front wing and custom Ti / carbon fuselage.....WOW !!!!
Firstly the dimensions.....Its 100cm overall length, so with the Axis compatible fuselage connection that makes the wetted length 97.2cm. 14mm chord thickness and 11.4 cm chord length. UHM carbon.
It is mega stiff both in flex and torsion, grabing by the fuse at each end and twisting, it is by far the most torsion resistant mast I have used.
On water.......I have been using a custom mast for a few years, 15mm chord thickness 11.8 cm chord length. Standard modulus carbon but lots of it and I considered it until yesterday to be a very good stiff mast.....was I wrong. 20 knot day.....5.3 Killer wave sail and a good Port Phillip Bay wind wave, perfect for testing.
First impression was the speed and glide improvement. My CNC machined front wing is only an AR 8:1 and although its a turning machine it was on the verge of lacking enough glide to match the swell speed here. No longer. The combination of this mast and the thinner Ti fuselage gave the setup a fifth gear, I could now easily stay on the swell and skip to the swell in front if the wave started to fade. Chalk and cheeze, way slipperier.
Up wind it was noticeably faster and the stabilty due to the stiffness of the whole setup was next level. I was blasting upwind on a wave foil !!!
I think this mast is great news for Axis riders....there is now a super high preformance mast for you that is affordable. If you are still on the Alloy mast this is a no brainer. For riders who would like to get on the Axis gear and access their fantastic range of foils this is your entry ticket for freeride windfoiling in my opinion. Axis have foils for whatever your passion is..... One Ocean are also expanding their wing range with some bloody beauties and Konrad have Axis compatible foils....so with this mast you would have endless options.......
For me. My freeride Windfoiling sessions just got way better......I can't stop smiling.
That's great new mate! Thanks for spreading awareness, One Ocean was not really on my radar yet. I would consider that mast. looks like a great value.
I am enjoying the Axis spitfire wings, and while the bigger spans have revolutionized my performance in light-medium winds, they have me searching for more stiffness.
I dig the titanium fuse options One Ocean have but the wing placement is really close to the mast and the length over all seems short for windsurfing.
On your set up I notice the fuse is not parallel to the board bottom, but the mast looks plumb. So that rake is introduced at the fuse connection? Is it built into that mast or your custom fuse?
What is length of your fuse and what is the length from the front of the fuse to the mast? I think the effects of those details need more discussion; I have bought a few fuse options to try and learn what it affects, and I need more TOW before I am confident that I understand. While placing the front wing further forward can have some desirable effects it is not helping stiffness, I would like to really understand how much is needed and why. I would love to hear your thoughts on the subject.
Are you offering fuselages for sale? Or would you consider selling the CAD file or even better making it open source?
The fuse seems to be the part that makes us (windsurfing) different and while Axis still offers a windsurf option, they are not updating it.
The fuselage is a custom. From memory its 92cm leading edge of front wing to trailing edge of the stab. I did the CAD work so no issue changing the lengths. The tail piece is machined from unidirectional carbon. The One Ocean fuselages are for winging, prone and DW, not Windfoil. One thing to note is that I changed the mast to fuselage screws from the Axis format. I have 2 M6 screws at the front and 1 M8 at the back. With the longer front on the fuse I was concerned about having the M8 with the bigger hole and csk removing so much material . To me it was a better option than having to beef the fuse up. I added an extra insert to the mast and a thread reducer in the front screw.
The Ti is stiffer than my alum fuse of the same front length, even with the lightening holes I added, no question about that.
The mast has a set rake of 1.5 degrees. I have been running close to 2 degrees on my old setup and have just had a shim printed for this one which will put it at 1.8 degrees. That seems to be the sweet spot for my board in the steep Port Phillip bay wind waves.
I could get a quote on having a few made if there were interest but it won't be cheap!!! The machined carbon tail has poor tortional strength so you need to keep it shortish, moulded would be better but you need a tool. If there were enough interest it is something I could maybe look at? A Ti tail or full length Ti fuse would be very heavy and bloody expensive. Could do an Alum tail but you would then need to disassemble and wash which sort of defeats part of the attraction of using Ti.
I have a contact to have them made in Alum at an affordable price but you can,t make them as thin and you have the corrosion issues. Ti is close to twice as strong as 6061 and also does not fatigue like alum does.
Consider designing a fuselage which uses either Gong or Starboard carbon tails. They are an easy enough design to implement and inexpensive to buy.
Yep I will take a look at that. The SB is over engineered IMO and very wide, does not suit what I am trying to do with the narrower Ti fuselage reducing drag. I need to look at the Gong dimensions.
