Peter R Payne-Sea Knife-Blade Hulls

[jetboat77]

Where did you find the info on the Russian sea knife?

The original units that Peter built(from the info I have) had an inboard but no flooded lower compartment.

I see also a fixed skeg on the bottom of the hull of the Russian boat.

[HJS]

Originally Posted by jetboat77

Where did you find the info on the Russian sea knife?

I once got it from Baeckmo

Ocean Engng. Vol 11.No 2, pp 129-184, 1984
SUPERCRITICAL PLANING HULLS

js

[jetboat77]

Some drawings of the original boat Peter was marketing and building....has anyone seen one or know how many were built.

[brian eiland]

I missed seeing this subject thread brought up.

Have a look here for some other photos and reference links for Sea Knife

Military recon powerboat concept

http://www.yachtforums.com/forums/16010-post47.html

http://www.yachtforums.com/forums/general-catamaran-discussion/2701-trimarans-bladerunner-4.html#post16010


...and there is more....

[orangutangu]

Hi Jetboat 77 I live in UK and own the only Sea Knife ever produced in the uk she is currently in the process of repair and refit but am more thaan happy to discuss any questions you may have

[BMcF]

Peter had a definite 'knack' for developing some wildly unstable vessels; Decades ago, I was one of a number of engineers and NA's that supported the USN advanced marine vehicle test facility in southern MD and various of Peter's inventions passed through for evaluation.

While the Sea Knife was dangerously unstable under some conditions, it was Peter's 'Wave Strider' that truly set the bar for wildly unstable advanced craft designs.

Payne was prolific though and did contribute much to the extension of the envelope that surrounds AMV design.

[srimes]

Originally Posted by Yellowjacket

...The idea being that a flat pad would reduce the effects of too deep a V...

I've been having similar thought lately. Seems to me that it would work but may be more sensitive to speed than a simple deep v. I'm thinking that the ideal pad size would decrease as speed rises. For lower powered boats it'd be good as the speed range is smaller. For a fast boat (like bass) a small pad probably doesn't do much at lower speeds (30) and a large pad would pound at high speeds (70).

But I'm no expert so I may be totally off base here.

[Mr Efficiency]

It strikes me as an idea ( the knife hull) that had an inherent flaw that kept it from being adopted. The Sea Sled probably in the same category, has its good points but the snag(s) are ineradicable.