Does this sound familiar?

[JEG]

" The two main drives are quite different. Made by Ulstein Liaaen in Norway, the speed-Z drives not only do away with conventional transmissions but have the variable pitch screws facing forwards.........The icing on the technical cake comes with the interfacing of the propellor pitch controls and the engine management computer to ensure that the power units are always operated at their optimum efficiency, yet never overloaded.......all this technology is evident in the joystick, rather than conventional wheel....."

Source M B & Y September 1990.

Apologies if this bores you.

John G

 

[Whitelighter]

15 years is probably about right from a developement point of view. No doubt this was the start of IPS.

 

[theguvnor]

you should be in the government if you think 15 years is about right to develop a point of view

 

[Whitelighter]

/forums/images/graemlins/grin.gif

 

[JEG]

Some development project: the accommpanying photograph shows the 112 ft.vessel and indicates a top speed of 43 knots [with third engine]!

 

[Dave_Snelson]

Shame Mr Liaaen didn't patent it then... /forums/images/graemlins/shocked.gif