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Old 20-05-2010, 09:06 AM   #1
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Sea Knife

The design blurb and the OP I version 9 years later.
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Old 20-05-2010, 09:36 AM   #2
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Thanks for sharing this, I was intrigued by this concept when I read Peter R. Payneís book: Design of High Speed Boats.
Donít know how well the sea knife worked, but it was good to see a new fresh approach to the planing hull problem.
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Old 20-05-2010, 11:09 AM   #3
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Sea Knife Comments

Selection of a few Sea Knife comments from USA,suttle as ever.
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Old 20-05-2010, 11:21 AM   #4
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Did that, or something similar make an appearance on Tomorrow's World back in the 70's?

Seem to remember a direct comparison made (side by side) with a conventional Vee hull in the program) Kind'a wave piercer.

Don't remember it being that big though.

Showing my age.
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Old 21-05-2010, 12:15 PM   #5
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Quote:
Originally Posted by Jon Fuller View Post
Did that, or something similar make an appearance on Tomorrow's World back in the 70's?

Seem to remember a direct comparison made (side by side) with a conventional Vee hull in the program) Kind'a wave piercer.

Don't remember it being that big though.

Showing my age.
I remember that too. It was filmed in Poole using an Avenger 19/21 as the conventional vee boat. Tomorrows world report was very biased against the Avenger boat as I recall.Think I've got an old Powerboat mag somewher with a report
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Old 21-05-2010, 03:09 PM   #6
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Yeah, they filmed it with the V hull leaping about all over the place & crashing down hard, while the 'knife' ran smooth & perfectly stable in pitch.

I suspect they forgot to mention that it may have required twice the power for the same speed.

I guess, as it was a technology show, promoting 'the future', and the Knife was to be 'the future', they had to show how much better it was, even if it wasn't.

Remember the same show explaining the all new 'Compact Disc' that you could drill 1/4" holes in and spread jam all over, and they'd still play! Again, not really proven to be reality.
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Old 21-05-2010, 05:48 PM   #7
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Sea Knife (2)

Another diatribe,this time he`s banging on about a scaled up version of the `Brave` class FPB,going 100mph.

What`s the spec say 100ft,3 x 3,500hp Gas Turbines,Displacement 100tons,complement 20 ratings (good berth layout required),oh,and 2 x40mm AA guns.

Just fit that my ol pen pusher.

I`ve got this vision of an 8yr old JF wrestling with pitch & yaw in front of the telly screening `Tomorrow`s World`,unless of course Raymond Baxter cottoned on to it much later than 1972.
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Old 21-05-2010, 06:49 PM   #8
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here is the patent.
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Old 21-05-2010, 10:15 PM   #9
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http://www.yachtforums.com/forums/16010-post47.html
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Old 23-05-2010, 07:58 AM   #10
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Thank`s for posting the Sea knife blurb,chaps.

Cor,you`d think it was the best thing since sliced bread,until you look at the GA`s and see engine sumps scraping pure cored structure,or waterlines drawn nice and level with min draught for that passenger arrgt despite the dayboat version showing the true floatation line.The size of those guns in the military version indicate a corvette size craft,so we go from 38ft to 200ft in one fell swoop.The times I`ve come across these crackers in the past,really does make one wonder if these people can make a living in boat design.
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