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Advanced Propulsion Systems

Related Terms

SHAFT ALLEY

The section of a ship that houses the propulsion shaft, running from the engine room to the stuffing box or stern tube.

STORESHIP

A type of naval ship which provides supplies such as frozen, chilled and dry provisions and propulsion and aviation fuel to warships which are at sea for an extended period of time. In some navies, synonymous with replenishment oiler, fleet replenisher, or fleet tanker.

DRILL SHIP

A regular ship shaped vessel, production ship. Positioned by anchors or dynamic positioning. Has its own propulsion machinery.

SEMISUBMERSIBLE

A deck supported by pillars, fastened to pontoons. The pontoons are half submerged during operations. Kept in position by anchors (or by dynamic positioning). May equipped with its own propulsion machinery.

ASTRODYNAMICS

The practical application of celestial mechanics, astroballistics, propulsion theory, and allied fields to the problem of planning and directing the trajectories of space vehicles.

CYCLOIDAL PROPULSION SYSTEM

The Voith Schneider propeller or tractor system using adjustable vertical hydrofoil blades, independently rotating on a circular base mounting that by developing lift can direct propulsion in any direction.

HAMILTON JET

New Zealander and his company that developed the marine jet propulsion unit.

INBOARD-OUTBOARD

A propulsion system with the motor mounted near the stern, coupled by a shaft to an external outboard drive unit. The components of this unit are similar to those of an outboard engine drive, having forward and reverse gears, a vertical shaft, and a propeller shaft.

JET

1) Common name for a water jet propulsion system. 2) Fine pipes in a carburettor for regulating the fuel supply available for vaporising and mixing with air. A high-speed jet and a low-speed jet are normally fitted to performance petrol motors.

PADDLE WHEEL EFFECT

The sideways component of a propeller's action (also called the paddlewheel effect). With a right-hand revolving prop in ahead propulsion it causes a vessel's bow to slew to the left, and in astern propulsion it's stern to slew to the left. The opposite is the case with a left-hand revolving prop.
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