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-   -   an interesting take on marine architecture (https://ecomodder.com/forum/showthread.php/interesting-take-marine-architecture-39248.html)

aerohead 03-31-2021 04:49 PM

an interesting take on marine architecture
 
1 Attachment(s)
https://thespeedzine.com/wp-content/...amic-Boats.jpg

freebeard 03-31-2021 05:22 PM

It looks like a bulked up hydroplane racer

https://ecomodder.com/forum/attachme...p;d=1617223763

Was there a picture of the hull configuration?

edit: Nevermind.

https://thespeedzine.com/wp-content/...-Prototype.jpg
https://thespeedzine.com/prototype-aerodynamic-boats/

Why am I fantasizing about making a yacht out of two PBY-5A Catalinas?

aerohead 03-31-2021 05:35 PM

hull design
 
'wish we had a 3/4, or plan-view from above. That would tell the tale.:)

kach22i 03-31-2021 07:23 PM

The parasitic drag pulling the craft down, must be countered with the partially capture air bubble under the craft so it doesn't have to go full airborne like a Wing In Ground Effect (WIG).

Advanced Aerodynamic Vessels, SAS
https://www.aavessels.com/
http://forums.pelicanparts.com/uploa...1617232634.jpg
http://forums.pelicanparts.com/uploa...1617232634.jpg
http://forums.pelicanparts.com/uploa...1617232634.jpg

https://www.aavessels.com/shuttle/
http://forums.pelicanparts.com/uploa...1617233397.jpg
http://forums.pelicanparts.com/uploa...1617233397.jpg
http://forums.pelicanparts.com/uploa...1617233397.jpg

https://www.aavessels.com/crewboat-25/
http://forums.pelicanparts.com/uploa...1617236563.jpg
http://forums.pelicanparts.com/uploa...1617236563.jpg

j-c-c 03-31-2021 08:21 PM

That is cool.
I did not review the link, does the craft have any aero trim elements to fine tune attitude depending on speed or cargo/fuel/etc?

Seems to me, its a great candidate to do back flips ala mulsanne straight antics.
https://www.youtube.com/watch?v=KqGq9OnHLHs

kach22i 03-31-2021 08:29 PM

Quote:

Originally Posted by j-c-c (Post 645174)
That is cool.
I did not review the link, does the craft have any aero trim elements to fine tune attitude depending on speed or cargo/fuel/etc?

Seems to me, its a great candidate to do back flips ala mulsanne straight antics.

Go to their website and poke around, looks to have some rather large flaps at the rear underside.

https://www.aavessels.com/crewboat-25/
http://forums.pelicanparts.com/uploa...1617236773.jpg

Porpoising and or oscillating pitching might be computer automated controlled I'm guessing.

freebeard 03-31-2021 09:42 PM

Quote:

Virtually no wake at high speed
An arguable claim. It's a good platform but not s great as the M-hull which has asymmetrical hulls and the center hull to create the counter-rotating vortexes. It has a flatter wake.

botsapper 03-31-2021 10:12 PM

Hold my..hiccup...my wodka.
https://www.youtube.com/watch?v=Wy0UNvL37vo

kach22i 04-01-2021 03:33 AM

Quote:

Originally Posted by freebeard (Post 645179)
An arguable claim. It's a good platform but not s great as the M-hull which has asymmetrical hulls and the center hull to create the counter-rotating vortexes. It has a flatter wake.

I've read some people in a boat forum really poo poo the M-hull as a marking gimmick. I however like it and see some merit to it.

The craft in the opening post is very much like the ram-air SES (Surface Effect Ship) diagrams of the 1970's that did not have flexible bow and stern skirts nor lift fans.

In fact, the Russians and Finnish had made the very first hovercraft or skimmers in the 1930's, full scale, armed and worked somewhat similar to opening post.

Toivo Kaario and Hovercraft – an Interesting Experiment
An Interesting Experiment -Toivo Kaario and Hovercraft in Finland
http://www.alternativefinland.com/wp...10/kaario4.jpg
Quote:

Photo, Left: P-9 during initial trials in Spring 1939- the Red Star and ”CCCP” were painted on the sides to confuse any Observers, as it was known that the USSR was conducting trials on a similar type of craft designed by a Soviet engineer, Vladimir Levkov. It was hoped that any sightings of the Finnish craft would be confused with the Soviet Navy craft that had been observed carrying out trials.
From the link above:
Merivoimat military hovercraft High Speed Torpedo Boat P 10 Trials 1939
https://www.youtube.com/watch?v=FWCR01i_IlQ&t=55s

.................................................. ...

LEVKOV’S HOVERCRAFT
https://weaponsandwarfare.com/2015/0...vs-hovercraft/
https://weaponsandwarfare.files.word...015/08/211.jpg
Quote:

The first ever air-cushion vehicle L-1 before trials, the Pleshcheyevo Lake, Russia, October 1935.
https://weaponsandwarfare.files.word...08/41xrqoj.jpg

Apparently still much confusion about which craft were Russians and which were actually Finnish.

The Hovertank however is all Russian.

Russia's WWII Hover Tank
https://www.guns.com/news/2012/05/05...ladimir-levkov
https://images.guns.com/wordpress/2012/12/x_tank_51.jpg
https://images.guns.com/wordpress/2012/12/x_tank_41.jpg
https://images.guns.com/wordpress/2012/12/x_tank_61.jpg

freebeard 04-01-2021 03:38 AM

Quote:

I've read some people in a boat forum really poo poo the M-hull as a marking gimmick. I however like it and see some merit to it.
Wakes don't lie. :)


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