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.
What Temperature Do You Cook Meatloaf. Meatloaf can be cooked at 375-400Â°F in an oven till it reaches an internal temperature of 160Â°. A large pack of ground meat, about two pounds, takes about one hour fifteen minutes or so.The temperature and time can vary depending on the taste and method of cooking.et it cook in the oven for one and half to two hours. Modify the cooking time depending on the size of the meat loaf. After cooking, let the meat rest for a few minutes before serving. Cut a slice of meat loaf and serve along with the cooked vegetables.