Seamanship_Secrets_185_Tips_-_Techniques_for_Better_Navigation-_Cruise_Planning-_and_Boat_Handling_Under_Power_or_Sail_(Re)_e..
70 seamanship secrets “Your Call, Skipper” You’re the skipper or most knowledgeable crewmember in each of the following situatio ...
71 Th e navigator’s job is a specialized one but not sacred. He or she should never feel above explaining it to shipmates. —John ...
72 seamanship secrets There are five essential ingredients for hassle-free dead reckoning: Known position. All navigation begin ...
piloting tips and techniques 73 give you is speed through the water, which will diff er from speed over ground to the extent tha ...
74 seamanship secrets Use standard international symbols. Use one of three symbols for any plotted position (see illustration). ...
piloting tips and techniques 75 discuss how to determine if a current is setting your boat off its trackline, and how to correct ...
76 seamanship secrets help locate yourself. This method may not be that convenient, but if you find yourself in poor visibility ...
piloting tips and techniques 77 a landmass, but it is the primary instrument for collision avoidance, low vis- ibility navigatio ...
78 seamanship secrets If your eyes are 6 feet above sea level, would you believe only 2.9 miles? Th e distance to the horizon is ...
piloting tips and techniques 79 [(square root of the height of eye × 1.17) + (square root of the height of the object in feet × ...
80 seamanship secrets Measure 32.2 miles on the chart’s right- or left -hand latitude scale with your plotting compass. Stick t ...
piloting tips and techniques 81 convert a bearing to true or magnetic or even use a protractor. Just draw a line on the chart th ...
82 seamanship secrets it, too, crosses the trackline. Now you have a trackline crossed by two bearing lines, neither which cross ...
piloting tips and techniques 83 Th e running fi x position lies at the bottom right, where the fi rst and second LOP cross. One ...
84 seamanship secrets Measure the distance to the contour curve. Estimate the speed you will use. Determine the time to the con ...
piloting tips and techniques 85 Choose a danger bearing. Pick a charted, visually prominent object such that a line drawn throu ...
86 seamanship secrets radar beam from your antenna to a pebble dropped into a tub of water. Con- centric circles emanate from th ...
piloting tips and techniques 87 Distance off (DO): Th e distance you need to stay off the shoal to clear it safely. Distance ahe ...
88 seamanship secrets squiggles. To find the depth of any curve, look along the line or circle for a bold number. This indicates ...
piloting tips and techniques 89 For example, from your normal helm position, you take a centerline bearing of 125 degrees magnet ...
«
1
2
3
4
5
6
7
8
9
10
»
Free download pdf