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Alongside Ship or Landing
Seaman - Military manual for the Seaman rate
Boat Etiquette - 14067_133
side force of the backing screw on the stern will walk your stern alongside. If you have to go starboard-side-to, remember  that  you  must  come  alongside  much straighter, because the backing screw will walk your stern away from the landing. Make a starboard-side-to landing at slow speed, and work your engine and rudder to get the boat alongside. When tying up to a ship's gangway in a tideway or stream, always secure the boat line to the ship side of the bow, and set the rudder a little away from the ship, so that the boat will ride clear. Tie up to a deck or landing, bow-on to the stream whenever possible, so you can set your rudder to hold it off in the same manner as just described. If the wind tends to throw the boat onto the landing, use less rudder and speed, and use your fenders to keep from chafing the boat against the pilings. Tie up with a bow line leading forward and stern line leading aft. Never have both lines leading in the same direction. In  getting  underway  from  a  starboard-side-to landing, usually it is best to back until the stern has walked  itself  away  from  the  dock,  because  a single-screw boat will back to port. If you have no room astern, hold the bow by the bow line and go ahead slowly with a hard right rudder. When your stern is well out, cast off, back with a hard left rudder, and your stern will walk  out  without  difficulty. CAUTION When you are shoving a boat away from the pier, the bow and the stern could fall in the water. Figure 5-9.–Effect of backing propeller. NORMAL AND HEAVY SEAS With normal sea conditions, steering a powerboat is much the same as handling a single-screw ship, although the reactions of the boat to the engines and rudder are more pronounced. Too much weight forward may cause the bow of the boat to plunge into the waves. Some hints on handling powerboats under special circumstances are given here as an aid to a boat crew that, having mastered the elements of its work, is ready to  operate  in  more  complicating  situations. When handling boats in a moderate or a rough sea, you  must  exercise  caution,  good  judgment,  and seamanship.  Each  member  of  the  boat  crew  must  know and  perform  all  duties  well  to  ensure  the  safe  operation of the boat at all times. One of the most risky situation arises when a powerboat is running before a sea. When the hull is lifted by the stern, there is danger that steerageway and power may be lost when the screw and rudder are clear of the water. The boat may then swing around broadside to the seas. The coxswain must rely on skill and training in the use of the rudder to keep the stern to the mountains of water. It is helpful to reduce speed and to allow large swells to roll by. In extreme cases, a drogue or sea anchor (fig. 5-10) may be used. Running into a sea is less hazardous, but not without danger. Reduced speed lessens the strain on both engine and hull. To this end, the throttle should be adjusted so that the bow rises with oncoming waves instead of driving into them. Taking the seas on either port or starboard  bow  is  sound  seamanship,  too,  because  some of the pitch is lessened by this method. Avoid the trough, except in an emergency. When moving   broadside   to   waves,   turn   the   wheel momentarily, so as to take larger wave crests on the windward bow, and return to the course when conditions permit. Figure 5-10.–Sea anchor or drogue. 5-10

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