Forward-facing propellers are in fact entirely logical; it’s just that no one has taken this approach before in the leisure boat industry. Because the propellers are mounted at the forward end of the propulsion unit, they can function in undisturbed water and achieve maximum efficiency. The propeller backwash is absolutely parallel with the bottom of the boat, so that all the power developed drives the boat forward. Efficiency is further enhanced by the twin-prop technology with counter-rotating propellers, since rotation losses are canceled out.
The low-speed maneuverability of boats with conventional straight shafts is severely restricted because the rudder can only control part of the propeller wash – most of the power drives the boat forward in a straight line. With its steerable drive units, the Volvo Penta IP system offers a completely different handling performance. When the drive unit is turned, the whole of the propeller wash, and all power, is turned in the desired direction. The boat is easy and fast-turning, even at low speeds. It is also very simple to maneuver, both forward and in reverse.
With its IPS control system, Volvo Penta is the first company in the world to provide end consumers with “fly-by-wire” technology – and is even ahead of the automotive industry in this regard. At high speeds the focus is on driving pleasure. The boat maintains a highly stable course, but responds quickly to the driver’s commands and has a very tight turning circle. Handling is easier and more predictable enabling the driver to maintain better control over the ride.
According to Volvo Penta’s own calculations, the new system provides the following improvements compared with boats that are equipped with inboard engines and straight shafts.
The IP system is up to:
· 20% faster
· 30% more fuel-efficient
· has 15% greater acceleration
· 50% lower noise and vibration levels, and is
· 75% faster to install in boatyards
· Moreover, the IP system means that:
· Exhaust noise is completely eliminated
· Handling is dramatically easier, and
· The compact construction provides more space onboard for living quarters.
The Volvo Penta IPS is the biggest news to emerge from the highly active and successful Volvo Penta unit since the introduction of its market-leading Aquamatic stern-drive system in 1959. Several of the world’s foremost builders of leisure boats took part in the development of IPS, which since being launched in January 2005 has become a major success among customers.
The Volvo Technology Award was established in 1988 to mark outstanding technical advances that will contribute to Volvo’s high-tech image and further the Group’s technological expertise in the future.
For further information, please contact
Lars-Erik Larsson, +46 31 66 65 50
Volvo Penta IPS website