| New Drive System, IPS from Volvo Penta
As Diesel Electric propulsion with azipods is getting more popular with larger yachts, Volvo Penta is launching their new drive for inboard diesels.
Together with the new engines in the D6 series, fantastic machines I have to say since we use them on Aquamatic already, VP are now making history with a pod-like propulsion for powerboats 35-50 feet. (To start with).
It consists of a steerable house with two propellers facing forward to work in undisturbed water. Steering is 26 degrees for manouvering reduced to 13 in speed since it is very efficient compared to normal rudders. The steering is computer controlled as in recent luxury cars.
Coupled to the 310 hp D6 they call it IPS 400 since they claim it is getting the same effect as 400 hp on a conventional shaft. With 375 hp D6 the name is IPS 500 of the same reason.
Exhausts are through the drive under the bottom, reducing noise by 7 dB. Speed gain and fuel efficiency is something like 20-40 percent over shafts!
Compared to shafts in tunnels they will increase the draft marginally and if worst happens, you hit a rock in full speed, the whole unit will fall off without causing damage or leakage and a new drive can be fitted.
Good news for all of us still playing with "smaller" boats! World premiere will be at the London Boat Show in January 2005 as I understand it.
/Lars
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