Hello my question is what is roughly the distance supposed to be to the mast base from the back of the board..I see guy crib recommends 1300mm for wave boards. I have a f2 103ltr and i have mucked around with the mast base position & i find it sails best with it at the most forward point of the mast track which is about 1300. now if this is the case why is the mast track set so far back that it needs to be at the most froward point.Also i have some older boards & measuring them they have the mast tracks about 500 mm more forward than that at about 1800mm when i have sailed them the front tends to sink how did the old sails differ to affect balance like that also i have a old mast track & was considering mounting it in a mike davis tri fin it also has a detachable centre board my guess is it would be about 120ltr & im thinking of inserting it further back for the newer sail design and would like some ideas of position im 70kg .
thank you look forward to your responsise.
I suspect the mast-track setting is relative to the height of your boom which in turn is (mostly) relative to your height, moreso than your weight. My goal is always to set the boom and foot to allow me to sit comfortably over the straps, and set the harness lines to balance the sail at that point.
I think the changes in mast track positioning is due to the changing nature of windsurfing (some truly inspired, others just the vogue of the times). Our harness lines are longer, stances are much more upright, more width/less nose are all contributing to mast track characteristics.
Any board shapers here to tell us how you determine where the mast track goes and how long it needs to be? There must be some sort of rule-of-thumb.
thank you trousers what i was hoping for would be the rule of thumb from board makers on the mast track position before i mount new track so any help would be greatly appriceated
If you are saying you are setting your foot at 1300 and it is close to the end, well then when you mount your new track, mount it 15-20 mm past this point to allow you a little breathing space and you should be good to go.
No simple answer as it is determined by the board design. Rocker ,outline and strap position all have a bearing before you even start considering rider weight, height and sea and wind conditions. Then on top of that fin size and type impact the best mast position.
Unfortunately you cannot just pluck out a figure and say "that works for Wave boards" it is totally incorrect to do so.
The biggest change between the modern wide boards and the older boards is the outline and rocker. The flat section of the rocker on the new boards has been able to be shortened due to the extra width. In line with this the mast track and strap locations have moved rearwards.
the mike davis has the mast track so far forward that the front sinks when up hauling its complelty unbalanced &you cant tack but the boom does sit on the back of the board for easy water start i was just thinking of balancing it out as a light wind board .the foot straps are cobra and half of them are missing . i thought i would worry about them latter . thank you for all the help
