Abstract: A drive system for a ship, including at least two propulsion units, each propulsion unit having a propeller and a drive engine with an above-water transmission connected downstream for driving the propeller. Each drive engine can be connected to and disconnected from the associated above-water transmission with a clutch and between the above-water transmissions, a switchable drive train is provided by which in one switching state, the above-water transmissions can be coupled and driven jointly and in another switching state, they can be decoupled from each other.

Abstract: A drive system for a ship, including at least two propulsion units, each propulsion unit having a propeller and a drive engine with an above-water transmission connected downstream for driving the propeller. Each drive engine can be connected to and disconnected from the associated above-water transmission with a clutch and between the above-water transmissions, a switchable drive train is provided by which in one switching state, the above-water transmissions can be coupled and driven jointly and in another switching state, they can be decoupled from each other.

Abstract: An outrigger assembly for support of a mobile crane or excavator upon the ground, includes a plurality of outriggers mounted to a vehicle frame and having free ends, wherein each of the outriggers has a ground-engaging pad connected to the free ends for vertical movement in relation to the ground. Each of the outriggers has at least one outrigger arm unit movable with respect to the vehicle frame between an idle position suitable for travel between sites, and an operative position suitable for support on the ground, wherein the outrigger arm unit includes an outrigger arm made of a hollow profile which has a lower part of U-shaped configuration and an upper part of calotte-shaped configuration.

Abstract: An outrigger assembly for support of a mobile crane or excavator upon the ground, includes a plurality of outriggers mounted to a vehicle frame and having free ends, wherein each of the outriggers has a ground-engaging pad connected to the free ends for vertical movement in relation to the ground. Each of the outriggers has at least one outrigger arm unit movable with respect to the vehicle frame between an idle position suitable for travel between sites, and an operative position suitable for support on the ground, wherein the outrigger arm unit includes an outrigger arm made of a hollow profile which has a lower part of U-shaped configuration and an upper part of calotte-shaped configuration.