Have you ever read a post on a wake related site where folks suggest that length is the only factor that you need to consider if your wakesurf board isn’t wakesurfing well for you? It’s so prevelant as to be ubiquitous. So what about width, thickness or rocker? You NEVER read about that do you? You know why? The majority of folks, while well intentioned, have no idea what they are talking about with regard to wakesurf board design or what works. Instead, they like being part of the discussion and presume they are being helpful so toss out the single most discernable feature, length. Go longer or go shorter as if wakesurfing was a single dimension. Also there are many that have agendas for control or selling wakesurf boards that hide behind anonymous screen names offering that LENGTH or a specific style of board is the best or only consideration.
So, how is it possible in a three dimensional world that only one dimension could be the single most important factor? There is a presumption that the UNREPRESENTED components are going to somehow magically be adjusted. So if you are riding a 4 foot board and someone says: “go to 5 feet in length” that the rocker, width and thickness attributes will be considered. Is that likely? No, more often than not the other dimensions remain static, or are changed in the same ratio as the first wakesurf board. Does that work? No, since there is no real thought given to the other dimensions and there is no representation, the minority measurements are after thoughts. Remember way back when we adjusted the apex of the Flyboy Wakesurf board? The location of the apex of most wakesurf boards, before we made that change, were simply a scaling of ocean surfboards down to lengths appropriate for wakesurfing. So those shapers took a 6’2″ shortboard and shrank all of it down to 4’10″. What happened to the apex? It got moved backwards. Did your stance change? When the surfboard was “shrunk” did the rider shrink too? Nope! The “take away” from that is that if the design of that wakesurfing system rests solely on the majorities presumptiveness, there is no representation for the various minority interests and you end up with CRAP. If every single board was 5’6″ in length and 23 inches in width what do you think your riding would look like? For some it would be perfect, because that sizing would be just right, what about if you are 5 feet tall and weight 95 pounds? That would be a LOT of board! There is still so much misinformation and under-representation that it makes it hard for folks to understand that they have options.
Do you know what the aspect ratio is of your wakesurf board? We are willing to bet that 99.99% of you don’t. We’d be willing to bet that the vast majority of folks don’t know what the width of their favorite wakesurf board is either. Know what length it is? Interestingly enough, we think the vast majority of folks do. So therefore the only important measurement is LENGTH! We know, logically that isn’t true, lets take an over exaggerated example. You ride a 5′ long board and you’re not quite sure of the width, so we could change the width to 4 inches with your toes dangling off the edge into the water and it would be perfect and ride the same! Really?
No, of course not. Width, within a relative range is very significant and will impact the ride quality immensely. Want to know something else? If we assume that wetted surface area is a significant contribution to a boards planing ability, then length adjustments are the least significant contributor. It’s true!
In simple terms, looking at a rectangle of 5 feet by 2 feet, adding 1 inch to the length adds just 24 square inches of area. What if you add 1 inch to the width? 60 square inches. Two and a half times more! What’s the quickest and easiest way to add wetted surface area? Width! Yet, it’s virtually never discussed when it comes to attempting to adjusting a wakesurf board to fit a rider. Well, let us take that back. The majority has deemed that length is the only important factor, excluding any minority view. Now a good shaper will adjust the width and length to properly fit a rider and the wake they surf on, but of course they, like you folks that are reading this, understand that focusing on a single factor or interest, without properly considering the other factors that influence the way the board wakesurfs and at times, the majority grabs on to an attribute that often has much less effectiveness in deteriming how to improve a wakesurf boards performance.
So are you going to consider all of the factors in your next wakesurf board purchase, or just length? Are you going to contribute to the tyranny or try and find a board that is better suited to your particular situation? No more length discussions!
In fact we are going to make every effort to dispell the notion that length is the most significant factor to consider. This “wakesurf board” will be 50 inches in length, that’s a 4’2″ board. What would the tribal knowldge conclude? At 4’2″ it will not go fast, it will pearl, it will not stay with the boat, it won’t “float” a 200 pounder and any number of negative connotations. Do you buy into that? NO! You read the Flyboy Wakesurf site, so you understand how much crap floats around out there. Well, unless all of that is true! 
Ok, so that isn’t quite as popular as the 99% and occupy movements, is it? But it’s easy to see how such movements gain traction when collectively, the focus is on a single interest or attribute.
We want to revisit the Lord book on planing hulls. In his testing he worked with aspect ratios – length vs width. There is that LENGTH thing again! In Lords testing he left length relatively static and increased width, noting the change in characteristics of the planing hulls performance based upon changes in this aspect ratio. In short, and you can see a copy of the pages below, an aspect ratio of 40% was one of the best for handling rough water and also developing lift, etc. That at ratios higher than 40% the various performance metric started to fall off, with the exception of wake development and sort of a smooth flow of water. Ratios of 50 and 60 showed marked improvement in these areas. You can read the conclusions and reference the photos below.

Wow! So we’ll skip those.
I know, you want to glide over the surface of the water like a water bug. Or do you? The one issue that we take with modern wakesurfing is that it refuses to recognize that there are so many options available to us, instead herding us into two catergories. Surf and skim. This slab o’ foam glides along like a planing hull, sliding and spinning. It’s doesn’t clearly fall within either category, so this sort of thing gets relegated to no man’s land.
We are going to use the aspect ratio of 40% which is the same ratio that Ryan used with the board in the video. It’s mostly rectangular which isn’t the best choice, but if we can slide and spin like that, who cares!
So we dug out a LARGE section of some 2 pound EPS foam, we have already used a section. We wanted to mess with you and say, ok, here it is we are going to surf THIS! 

So we started by hacking off the one section to make it easier to cut and then marked our dimensions of 50 inches by 20 inches which is an aspect ratio of 40%. You can just see the lines drawn on the foam.

Now for the outline! Graceful curves. Ok, not much of them, the end at the nose if 16″ wide, the end at the tail is 18″ wide and the wide point is 20″

So what would you think these dimensions would produce? Sort of a slug, right? It would go straight and not turn, but you saw the video, that thing did turn but it also offered up a differeing style of riding, one that was mostly sort of floating and slide’y and spin’y. Oh wait, we only have 2 pegs available to us, is it surf or skim? It’s such a detrement to the creativity of the sport to have such huge blinders.
Oh my, did we over shape the rails? They look kinda thin at 4 inches and boxy.

Nicely drawn rocker. Did we ask you opinion on the drawing skills? Huh? Did we? 

All finished shaping, it took the better part of an hour including dragging the foam out.


Isn’t it gorgeous? Oh you know you want one! We are going to laminate this one with some 6 oz fiberglass. So we hope you’ll tune in tomorrow as we start the process of lamination and remember, no more length only discussions/considerations!
Technorati Tags: wakesurf board, Wakesurfing