Cutfinger Watercraft - world's fastest rough water craft?

[kach22i]

Just found this, don't know if it's been posted before.

Cutfinger Watercraft......mock-up
http://www.warboats.org/future2.htm

world fastest rough water craft

http://www.cutfingerwatercraft.com/

This concept uses a radical shift from the standard types of propulsion. We are using a new patented type of propulsion that will increase hull speed. Engineers have projected the watercraft may be able to sustain 100 mph in sea swells of 20 feet or higher.

[kach22i]

http://www.cutfingerwatercraft.com/PressEnterprise2.htm
Lee said his design could potentially allow the Cutfinger to reach speeds of 70 mph in 20-foot swells by slicing through the waves like a knife. The secret is technology that allows water to be sucked up through both sides of the hull, like a giant water pump, lessening the water's resistance.

[Fanie]

Looks like the offspring between a submarine and a powerboat !

[kach22i]

Upon a quick read of the patent it seems that the intake path/pressure for a mid-mounted water turbine helps hold the craft down to the surface thereby preventing it fron heaving up on the crest (or dip) of a wave.

There is something called a "Custer Wing" (or Channel Wing) which causes lift on a similar principle.

http://www.custerchannelwing.com/

[kerosene]

I will believe it when I see it. It is hard for me to believe that backyard engineering could produce something that can travel on/through water 100mph safely.

The photo series of the mock up building is less than convincing imo. Then again I can be a pessimist when it comes to revolutionary things.

[Fanie]

It is hard for me to believe that backyard engineering could produce something

Why not ? It's every 'backyard engineer's ' choice how professional or how un-professional he wants to do anything. Exactly where is the line between so called 'pro - ' and 'backyard' ... ie, when do you cross over ?

[yipster]

recently i did read bout blown wings, iow a wing that wind is blown by a engine
has stol capability and over triple the lift of a sucking slatflap but in combination
with a duct and non planar wing can have CL26? dont know but doubt that
it was some interesting reading tho with planty more questions sprouting
i think the story's has some merrit, i'm by no means an expert tho.

[Willallison]

I wonder what's going to stop it from continuing on a downward trajectory at 100 mph....
I gather that those little "pectoral fins" are to correct direction either upwards or downwards, but at those sort of speeds, I would have thought that typical human reaction times could result in a pretty wild ride.
Still - always happy to be proved wrong - no doubt they've considered such stuff....

[Fanie]

In most instances where crytical occurences can happen which may be too fast for human control use is made of a micro processor to either control, limit or prevent certain things... similar to your car's ABS brakes.

[masalai]

And cars still crash unexpectedly with monotonous regularity, and they are supposedly "professionally" made and designed by "highly qualified" engineers.

Much like some software writers who were "paid by the line" hence the term "Bloatware" and excessively cumbersome programs?

Then add to the mix, "suck it and see" modifyiers who crave to convert their small car into a raging 1000hp monster and put it on the public roads.

At least the oceans are a little bit bigger a playground to experiment in and justify the necessity for Coastguard in a way and frequency not expected. Makes good U-tube though He he.....

[Fanie]

Well, you have to keep in mind the car is still under the human's control. Without ABS there would probably many more accidents, you cannot however expect the ABS to prevent an idiot from driving over a cliff or stop on the other side of another car... but it does help for optimum braking on poorish road surfaces.

Another simple electronic gadget that prevents us from buggering ourselves up is the earth leakage protection... since we react too slow to disconnect ourselves when touching live power the earth leakage does that for us.

Won't prevent the short circuit you made with the recent re-wiring, but it will keep you alive to pay for the damages the short caused

Then add to the mix, "suck it and see" modifyiers who crave to convert their small car into a raging 1000hp monster and put it on the public roads.

You have them there too ? It's quite funny how many of these young guys are going to heat their cars up... 1300 City Golf and the performance... sounds like they will run down any V8.

[kerosene]

Originally Posted by Fanie

Why not ? It's every 'backyard engineer's ' choice how professional or how un-professional he wants to do anything. Exactly where is the line between so called 'pro - ' and 'backyard' ... ie, when do you cross over ?

I think your quote of my post is a little unfair the way you chop it.
I do have faith in clever individuals coming up with new solutions and sometimes to see what has been missed by everyone. There definitely are examples of great inventions by ordinary people.

At the same time there are a lot of inventors who make revolutionary claims purely based on ideas without real data or research to back their assumptions. I think that it is quite challenging to have a boat that can dart through waves 100mp without hurting the pilot or disintegrating the boat.

The pictures of the prototype building seem like the process is a little too intuitive or spontaneous to result in revolutionary engineering feat.

Am happy to be proven wrong and all the better if the concept works.

h

[Fanie]

Kerosene... I can see you're burning up about this

I think your quote of my post is a little unfair the way you chop it.

Sorry if it offended you, at the time I read it it seemed a bit generalized... There's quite a few ie boats I saw that looks pretty well done by first time builders... they're back yard mechanics so to speak...

The pictures of the prototype building seem like the process is a little too intuitive or spontaneous to result in revolutionary engineering feat.

May be so... could be the guy had a couple of bucks to throw around and this idea to put up the first record for something we may remember him by. If he's reacable he could even comment on the forum if someone asks him to.

[kerosene]

oh no no - not offended at all. not a big deal. I hate the way the forum speak doesn't carry out tone very well.

Just discussing

[FAST FRED]

Were the Wright Brothers Amateur backyard builders or Pros?

FF