Thanks for posting that video. I was tempted to make an edge board and try it out myself but after watching that, I’ll pass.
I got out of that article that the current Mr. X boards are downrailed with a slight concave running rail to rail and throughout the board. Also, the vertical fins looked interesting too. Anybody have any comments on the Mr. X type board, not the GG edge boards?
Seems like what Mr X is doing now is similar to a modern board with a slightly tucked under hard edge down rail. Not what Greenough is doing.
Griffin has been a big influence on me since about 2005 when he made my brother and I the 5-fin fish boards we both love. He uses a hard edge in his rail. I’ve been using the tucked under rail with a hard edge on most of my boards and I think they help make the boards fast.
I haven’t made boards with a vertical edge on the rail, it’s either tucked under, pinched, or hard down rail with a knife edge. The boards with the tucked under and hard edge running from 18" behind the nose and ending with a knife edge in the tail seem to be the fastest.
I might continue experimenting with the triplane bottom using a bevel or vee panel on the bottom like Bill Stewart’s hydro hull, but making the transition from the bottom to the bevel harder.
Phil Myers from free flight posted these on Facebook today. His is the. Lie one and the red and yellow are by George greenough.
That is awesome. I wonder how it (the middle one) rides?
I like the way you tucked under the edge and blended to the single concave on the Blue board. Very clean. The Green board reminds me of the flat bottom down railers we were shaping in the early 70’s in SD County. Lowel
Thanks Lowel. The blue board started out as a 7’ single fin, but I wasn’t too happy with the performance. I added sidebites and changed it to a thruster and that really woke it up.
Low rocker so it’s fast. Sharkcountry surfing Shark Country.
A while ago I bought about 10 slabs of Blue Dow XPS foam, 3" x 24" x 8’ from a local board builder who was leaving for Bali. I made a handful of boards carved out of these slabs using the existing thickness. One board was just like the blue board in the above posts, but I didn’t add weight to increase the rocker, (you can see how I added a brick on the nose to get more rocker). Well, that board sat shaped and glassed, but unfinished for a couple years, because I wasn’t sure it had enough rocker. One day I saw this video by Tom Wegener and I was amazed that his board looked almost the same as mine.
I added the long single fin box, finished it up and gave it a go. I was surprised that it works good in smaller waves, like up to just over head. The outline is almost the the same as the blue board in the earlier posts. Similar rails, maybe a little bit softer in the middle, and nose. If I didn’t see the video from Wegener, I may have never finished it. Since 2013 or so, I’ve gone back to more nose rocker, and I haven’t seen a negative effect.
Mr X’s closing comment about how you have to go the both extremes to find the center is so true. I’ve done my studies on rockers, I’m well into the rails, and bottom shapes, but the Greenough concept has me so confused.
Nump