What are Advantages of Dead Reckoning Over GPS?

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No Dependence on Electronics Dead reckoning is an effective method for navigation when GPS devices are not functioning or are unavailable. This can be due to heavy foliage, dense urban areas, or areas with high levels of signal interference. By using dead reckoning, you can continue to navigate and make progress towards your destination, even when your GPS device is not working. For example, if you are navigating a dense forest and your GPS device is not functioning, dead reckoning can help you estimate your position and navigate towards your destination using a map and compass.
Increased Situational Awareness Dead reckoning requires users to be aware of their surroundings and the environment they are in. This increased situational awareness can help users identify potential hazards and make more informed decisions about their navigation route. For example, if you are using dead reckoning to navigate a river, you would need to be aware of the river’s currents, depth, and any potential obstacles such as rocks or sandbars. This increased situational awareness can help you make more informed decisions about your navigation route and avoid potential hazards.
Long-Term Navigation Dead reckoning can be used for long-term navigation, allowing users to estimate their position and navigate over long distances. This can be particularly useful for users who are navigating in areas with limited access to GPS signals, such as in remote wilderness areas or on long-distance ocean voyages. For example, if you are navigating a long-distance ocean voyage, dead reckoning can help you estimate your position and navigate towards your destination using a combination of celestial navigation, chart plotting, and dead reckoning.