Hello
Some people have picture for help me to make a keel for a mini40?
You make it in CP with glass fiber? or carbon fiber?
What thickness?
I make the Ghost train and I have the form but not the thickness
Thanks
Vincent
I would suggest keeping it on the thin side and not much thicker than 1/4" at most.
The multihulls sail much faster than a monhull and thus easily and quickly build up lift as the keel moves through the water. Most full size beach catamarans in the 18-20 foot length have boards around 3/4 to 7/8 inches thick. A nice rounded leading edge and sharp trailing edge. There really isn’t a lot of “foil” shape to them. Once it starts moving through the water, boat speed will provide the high and low pressure sides to the board for adequate lift.
The board on my 1 Meter was built to a thickness of about 4 mm and in light wind it is fine, but I often think in heavier wind I should go to maybe a 1/8 and add some carbon to stiffen. Just to lazy to do it - but the 1 Meter is seldom raced - no one close by. Just make your board easy to remove and you can change both thickness, angle of rake and depth as you get some time in on the sticks.
ok thanks 1/4" it’s about 0.6mm (i am french!) and my plywood is 4mm so I put 2 plywood and fiber and if it is too thicker I will change in the future.
My mini40 is not for competiton just for pleasure.
thanks a lot
Vincent
Vincent
are you in France - or somewhere else and relocated?
Please post photos as you proceed. The GHOST TRAIN design are you building to - is a well raced/proven design. Good luck
Yes I am in france, I live in Normandie (Les Andelys) near Paris (100km)
I will post picture as soon as possible.
Vincent
Have the courage to control powerWhat qualifications between the separated You can not I have the provisions of the provisions of10,000 sneeze Movement of its own
For the fins and rudders on my 2metre cat I’m using foam cores laminated with CF - they’re very light about 25-30grammes for a bare rudder (without the winglets yet) and very stiff. I get the foam cores hot-wire cut by a guy who specialises in model plane wing cores.
For the rudder stock and the mounting of the fins (they’re detatachable) I cut slots in the foam core and epoxy in CF tubes, which I fair in before laminating.
For the Cat I need two of each of course so to make them as similar as possible I build them as a joined pair and then seperate them when the lamination is completed, I then epoxy additional CF tubes into those I embedded in the cores.
I don’t know how to post pictures here yet but when I learn I’ll post some photo’'s.
Ray
Human brain is the most complex and intelligent mechanism in the world. It is the major factor that distinguishes man from animals. wow gold, With our brain we get to know the world and make a good use of the world to our benefit.Our brain is a product of constant use through millions of years. Other things can be used up, but used properly, our brain can never be exhausted. In fact, the more we use it, the more capable and efficient it will become. Excessive use of the brain, however, will causea lot of problems. So it is useful wow gold, to know how to use our brain wisely. First, handwork or physical labor is good exercise as well as rest for our brain. Doing handwork and brain work alternatively can help develop both our brain and hands. maple story powerleveling, Secondly, we should avoid doing brainwork for long hours on end. The brain, though 3% of the body weight, when at work, consumes 20% of the oxygen carried by 16% of the blood in circulation. A long period of brainwork may cause, through lack of bodily activity, slow blood circulation and inadequate oxygen supply to the brain, resulting in inefficiency and possible damage to the brain. Human brain is the most complex and intelligent mechanism in the world. It is the major factor that distinguishes man from animals. With our brain we get to know the maple story powerleveling, world and make a good use of the world to our benefit.Our brain is a product of constant use through millions of years. Other things can be used up, but used properly, our brain can never be exhausted. In fact, the more we use it, the more capable and efficient it will become. Excessive use of the brain, however, will causea lot of problems. So it is useful to know how to use our brain wisely. First, handwork or physical labor is good exercise as well as rest for our brain. Doing handwork and brain work alternatively can help develop both our brain and hands. Secondly, we should avoid doing brainwork for long hours on end. The brain, though 3% of the body weight, when at work, consumes 20% of the oxygen carried by 16% of the blood in circulation. A long period of brainwork may cause, through lack of bodily activity, maple story powerleveling, slow blood circulation and inadequate oxygen supply to the brain, resulting in inefficiency and possible damage to the brain.