When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. I recently bought the moulds from a procrastinator who left this sitting in his yard for a few years. The only thing that strikes me is the potential for turbulent water flow at the leading edge of the tunnel. Location: Canada firth_andrew007 - if this is a planing tunnel hull, then you may find some help on my website. I'm not sure that the reduced buoyancy from the tunnel is worth the reduced wetted surface. It will be a question of whether your AoA is reduced sufficiently at speed to negate the loss of buoyancy at the stern.
Location: Coastal Georgia You might have to vent the tunnel to break the suction.
Do you guys that have this book think this would help me with a of shore cat style hull desinge along with good info on them? CURLEWExperience, passion, and a relentless no-compromise approach gave rise to the Curlew. Location: Puget Sound Whats your definition of waterline on your particular boat?
I CAN CRUISE ALL DAY FOR MILES AND MILES AT 2750 TO 3250 RPMS AND ITS ECONOMICAL AT THAT SPEED .


Location: mass OK, looks like I will do the 40hp Thanks all for the very qualified info, I appreciate it and it is always an education whenever I visit this site.
Originally Posted by fchawk OK, looks like I will do the 40hp Thanks all for the very qualified info, I appreciate it and it is always an education whenever I visit this site.
Originally Posted by tunnels 50 HP 4 CYLINDER MERC AND PUT THE FUEL TANK UP UNDER THE FRONT DECK .
I have that motor on my 15.5 Hourston, planes 4 large adults without a hitch and holds a steady 16-17 knots easily enough with those 4 adults on board. Having a few extra gee gees is good ,you can safely cruise at a comfortable speed and cover a lot of ground ! With its sleek design, impeccable detail, and peerless shallow water performance, the Curlew approaches that elusive ideal of the perfect boat.
I will let you know either way on the outcome Mercury did a really nice 4 cylinder 40 hp ! Theres always that feeling a guy in a rowing sciff is going to pass you,or even a decent sort of a sailing cat ! If you look at the modern inboard tunnel jets ( Phantom sport jon, Seaark predator, Harbercraft extreme shallow ) you will notice some major differences. Many of them are very knowledgeable, have decades of experience, and are generous enough to lend sound advice. I'm currently searching the web for any drawings that give me some ideia of the proporcions of this kind of boat.


IN THE EARLY MORNINGS WHEN THE WATER IS LIKE A SHEET OF GLASS ITS 6200 RPMS AND ITS EXILLIRATING TO SAY THE LEAST , WITH 4 ADULTS IT GETS ON THE PLANE QUICKLY AND WILL STAY THERE REGUADLESS OF THE SEA CONDITIONS JUST NEED TO FIND THAT MAGIC SPEED !!
You may want to have a look at the Glen-l builders forum as there is an archived discussion regarding pwc powered boats. I've been on this for about 2years now but realise I could do with some help from some experts. Whats different about this is that the 'open source' idea comes from, Linux, the GNU Public License and Linus Torvalds. Nobody 'owns' the Linux operating system, you are free to download and modify the core of the operating system and redistribute it so long as the source code is released etc.
With over 20 years of experience -- along with its association with the industry's most sought-after Naval Architects, Marine Engineers and fishing guides -- we have created a legacy of product integrity. Likewise with this model you are free to contribute your ideas, criticise and modify the generic design etc.
Whatever looks ok and gets the ok from the peers, stays but it all remains in the Public domain as an open source project.




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Comments to “How to design a tunnel hull boat works”

  1. sadelik  writes:
    The compendium has sensible video.
  2. Brat_MamedGunes  writes:
    And concerned for most beginning boat builders enough to personal many boats.