PREPARATION FOR LOADING:
Shore ramp and inner ramp
Shore ramps are classified as either side ramps or stern ramps according to their position of installation. Side ramps are installed at approximately the middle part of the ship while stern ramps are installed at the aft part.
Since the width of the wharf apron (the place where vehicles run on the wharf) varies from wharf to wharf, consideration should be given in order to determine the wharf to be used and whether the side or stern ramp should be used since each of the ramps extend for a different distance from the ship side to the wharf. Stern ramps can be further classified as follows in accordance with the direction of installation. PCCs are fitted with one of, or combinations of these stern ramps.
Fore-down stern ramp
Fore-down stern ramps are stern ramps on which vehicles run down in the fore direction of the ship when unloading.
Aft-down stern ramp
Aft-down stern ramps are stern ramps on which vehicles run down in the aft direction of the ship when unloading.
Slewing ramps are stern ramps which are installed at the center of the ship’s stern, and can be swung left and right in accordance with the berthing posture of vessel.
A loading plan should be made with the aim of increasing the number of vehicles to be loaded, shortening of the handling time, and reductions in the cost, the prevention of damage to vehicles and ships as well as the prevention of human injury.
(1) Typical arrangement of stern ramps:
- Combination of fore-down and aft-down stern ramps
- Combination of two aft-down stern ramps
Aft-down stern ramp extending straight aft
- Slewing ramp only
Slewing ramp which can be swing from port and to starboard.