John, I've been pouring over your ST49 plans both for myself and a friend. If my friend starts building ... my fate is sealed ... I'll have to build a boat for...
Thanks John! The real crucial measurement though is the location of the step in relation to the plank. I know you have an adjustable plank, but it would be...
brey1160 wrote .. ... This doesn't make any sense to me. There is drag associated with aerodynamic lift. Granted, the drag due to a given amount of lift (in...
After YEARS of just talking about it, I'm finally going to do it. And actually there will be 2 builts done in unison. This wouldn't have happened right now...
Awesome!!!!!! Frank Marsh M & W Engineering Inc. 3880 Dividend Drive Suite 100 Shingle Springs, Ca 95682 530.676.7185 frank.marsh@... On Feb 5, 2009,...
stiffening the plank , beefing up the controls . This has improved handling and sailing confidence. I need to make a few more refinements in the controls and...
Yes, The top and bottom hinges are 1/8''x1'' aluminium bar stock. I noticed mine bent with 8 days of hard sailing . I recommend 1/4x1 aluminium or 1/8x1 steel...
We have some video of our last trip. I will post as soon as possible. My nephew has the 71.2 mph run on it. Yesterday I hit 69.9 . Today 58.5 in 10 to 14 on...
John What is a J14 hollow plank? Congratulations on Freeze out lake. It sounds like things are progressing nicely on the ST49 project. Frank Marsh M & W...
Hi John, I read your story with envy as I look out the window at 18" of snow. Did you find the softer plank made for to much slop in your rigging? I am curious...
J14 is an iceboat not unlike John's ... not a wing, but someone had an idea for a boat, made the plans freely available, and now there is a pretty good...
Did you read the comment from John about why he is painting his wings now? Fellow boaters were telling him that natural brown was hard to see. I can...
That's right, your steering was sloppy too. I'm sure that wasn't a good feeling. So how does it feel at 70mph? Solid or scarey ... or both? :-) Looking...
Yellow is fast! The first plank was too springy. I would come down after a hike and it would bounce the boat around too much upsetting the wing controls. The...
I know you are a wood purist :-) but have you ever thought of glassing the plank? I'll be glassing mine ... probably try unidirectional glass this time....
My hull was already yellow and my fellow iceboaters all drive good visibility rigs so I'm sure they could see me coming ok. After watching my nephew sail the...
There are as many opinions on plank construction as there are plank builders. Here's mine. Ash is used because it has a nice tendancy to flex without...
Yep, that natural brown is very hard to see. I was behind (of course) John once with his class 5 wing on the dirt. I knew he was in front of me because I...
I've used uni and carbon fiber to stiffen planks. I found you needed about 3 times the layers as I thought. If you have the extra cash and don't mind working...
Here's my 2 cents. And that is just what it is, only worth 2 cents. I built a J-boat and hollow plank. I totally agree that the weight isn't worth doing the...
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