2018年10月14日 · The foremost station is called forward (or fore) perpendicular (FP) and the aftermost station is called aft perpendicular (AP). Usually the FP is placed where the design waterline (DWL) intersects the stem, whereas the AP is where the DWL intersects the stern or where the rudder stock is.

Below is a list of symbols and abbreviations used in the course. Do not attempt to memorize them now! Their meaning and uses will develop as the course progresses.

2014年12月23日 · The effectiveness of overhangs on increasing DWL depends on the shape of the overhang. With modern fine bows bow overhang does almost zero in terms of extending DWL forward. But the biog fat fannies we see on modern boats are very effective adding sailing length aft, If,,,there is any overhang to begin with and we very little aft overhang these ...

Longitudinal Center of Gravity (LCG)-this is the position of the forward or aft location of each item accounted for in the weight estimate, and the total ship, measured from the longitudinal reference axis.

Design Waterline (DWL): The waterline at which the ship is designed to float in the full load condition. Corresponds to a line in the middle of boot-topping of the ship. Forward Perpendicular (FP): Aft Perpendicular (AP): A vertical line drawn at the point of intersection of the DWL and the stem of the ship.

Mc, Vc, and Dc are the corresponding notation without keel. For ships, this section is located midway between the fore and aft perpendiculars. For yachts it is more common to put it midways before and aft ends of the waterline.

The designed waterline (DWL) and load waterline (LWL) are usually in the same plane on the hull. The waterline length is the critical factor in determining the maximum speed of a displacement hull.

Study with Quizlet and memorize flashcards containing terms like Design Waterline (DWL), Forward Perpendicular (FP):, Aft Perpendicular (AP): and more.

2015年3月30日 · Waterlines above the dwl are usually positive – so wl +100 will be 100mm above the dwl. On older designs, waterlines above the dwl are sometimes called level lines (LL) and waterlines below the dwl are called waterlines (WL) – both followed by a number to indicate how far they are from the dwl.

Design Waterline (DWL or L(oad)WL)-The waterline draft at which the fully laden vessel is designed to have. Draft-the depth of water displaced by the hull when it is afloat. This is usually measured from the Baseline unless the keel has drag.