HIGHSPEED-SHIPS

INNOVAKO was established in1989, shortly after the design NO 66659 of a highspeed ship.
All pictures show variants which use air to reduce the wight of hull in sea, and in this way reduce the power needed to get the desired speed.
The principle says that by compressing air under the hull by a bigger opening in front than back, the hull will more or less lift up.
Model tests in 1971 show that this happens.
The model test also shows a problem which had to be solved.
The catamaran become unstable when floats on air, and after a short time overturned.
The problem was solved by making the hull wider and V-shaped.
The picture from 1973 shows that the catamaran now was stable.
With increased speed the catamaran from 1973 left the sea completely, and behave as an airplane.
If high speed ships use the “ground effect”, which helped aircrafts back to England in World War 2, is the safety than related to aircrafts or ships?
Wight and speed are parameters of concern, when highspeed ships use the “ground effect” to reduce energy needs.
Safety will always have first priority.
The picture from 1980 shows a design where hydraulic flap is used to regulate the air flow through hull, and in this way control the “ground effect”.
The last 2 pictures shows a 3maran, which stabilized highspeed ships by a hull in middle.
3marans can balance safety and speed in a way that make highspeed ships a success.
3marans can also meet the challenge of waves in an acceptable way.
Model of a katamaran to be tested in 1971




Design with hydraulic flap to control the «ground effect»

