Given a starting point from dead reckoning (calculations based on speed, time, and direction) or a sextant reading, you would track the boat's direction (with a compass) and speed (with a log) to continue to know the boat's position. Now, however, most mariners use a marine GPS chartplotter to navigate.ome handheld GPS units also are plotters, if they show the position of the boat on a chart. A GPS unit that provides the position only in longitude and latitude is not considered a plotter. For all types of plotters, the general principles are the same: 1  The screen shows a nautical chart.
Tips & Warnings. Small 1-pound meatloaves can be cooked at a lower temperature of 300 F to 325 F, if you prefer, for 10 to 12 minutes longer. This gentler cooking minimizes moisture loss as the meatloaf cooks, yielding a moister and juicier end result.
Rating Newest Oldest. Best Answer: Well slow cook can mean a lot of things. It depends on how much meat loaf (how much does it weigh) and how long you want to cook it. I cook a two to three pound meatloaf at 350 degrees for about an hour and 15 mins.eatloaf cooks in an oven for about an hour to an hour and a half depending on how large you make it. If you are using a glass loaf pan cook it on 325 if you are using a metal pan cook it on 350. You can't really cook a meatloaf slow because it will dry out and burn. miamac49616 Â· 9 years ago. Thumbs up.