Table of Contents
Where is the astern on a ship?
1 : in, at, or toward the back of a boat or ship : in, at, or toward the stern The island lay astern. 2 : in a reverse direction : backward The ship went full speed astern.
Where is the centerline of a ship?
CENTER LINE —-A straight line running from bow to stern, midway between the sides of the ship. All transverse horizontal dimensions are taken from the center line. The center line as applied to a transverse bulkhead is a vertical line in the middle of the ship.
What is a quarter on a boat?
Quarter: 1. The after parts of the ship on each side of the centerline. Quarter-deck: The part of the upper deck of a ship abaft the mainmast, also often included a poop deck. The quarter-deck was that part of the ship from which command was executed and thus it was often reserved for officers in naval vessels.
Which way is aft?
The forward of a ship is just as it sounds: It’s the most forward side, at the front of a cruise ship, facing the bow. The rear of a ship, at the direction of a ship’s stern, is called the aft.
What does to go astern mean?
Astern \A*stern”\, adv. In or at the hinder part of a ship; toward the hinder part, or stern; backward; as, to go astern. Behind a ship; in the rear.
What does full astern?
Astern means at the rear of a ship, boat, or plane. The word was originally nautical, meaning “toward the stern of the boat,” or “at the back of the ship.” One theory about the origin of astern and stern says their root is the Old Norse stjorn, “a steering.”
What is centerline in vessel?
marine. A line of symmetry between the port and starboard sides of any vertical section or any horizontal section. The middle line of the ship extending from stem to stern at any level.
What is centerline bulkhead?
Some general cargo, tramp vessels, were fitted with centerline bulkheads extending from the bulkheads to the hatchways. Apart from increasing the longitudinal strength, such centerline bulkheads mean a considerable saving in expenses for shifting boards required by vessels carrying grain in bulk.
Where is the port quarter on a ship?
The right rear of the boat is the starboard quarter; the left rear is the port quarter.
Where is the forecastle on a ship?
The forecastle and aftercastle (or sterncastle) are at the bow and stern of the vessel. A top castle was perched on masts of some ships about the 13th century.
Which is the forward part of the vessel?
The most forward part of a ship is called a Bow; the left-hand side of the ship is referred to as port, whereas the right side is called starboard. Likewise, the front side is termed as forward and the backside as astern.
What is an aft view?
The view from an aft balcony is of the ship’s wake; the view from side balconies is better for viewing the port (and late-returning pier runners). Aft cabins can feel more movement from the ship’s thrusters; this is true whether your balcony looks aft or faces to the side at the back end of the ship.
What is the meaning of astern in English?
Kids Definition of astern. 1 : in, at, or toward the back of a boat or ship : in, at, or toward the stern The island lay astern. 2 : in a reverse direction : backward The ship went full speed astern.
Where is the stern on a yacht?
The stern is located opposite of the bow. In the beginning, when people referred to the stern of the boat, they meant the aft port section. However, nowadays if you hear the term stern, it implies the entire back portion of the yacht. This part is highlighted by a white navigation light at night.
How does astern thrust work on a ship?
In a ship with a gas turbine engine and a variable-pitch propeller, astern thrust is simply a matter of changing the propeller pitch to a negative value. Most other propeller-driven ships will reverse the direction the prop spins. For a paddle wheel ship, reversing the direction of the paddle will provide astern propulsion.
What is the stern end of a ship called?
The stern end of a ship is indicated with a white navigation light at night. Sterns on European and American wooden sailing ships began with two principal forms: the square or transom stern and the elliptical, fantail, or merchant stern, and were developed in that order.