A torpedo is launched underwater, targeting a naval vessel about 5,000 m away. How can the vessel detect the torpedo before it reaches the vessel?
Select one:
a. By seeing it flying above the water
b. By listening for it underwater
c. None of the above: it won’t be able to detect it in time.
d. By listening for it in the air
by listening for it underwater
The correct answer is b. By listening for it underwater.
When a torpedo is launched underwater towards a naval vessel, the vessel does not have the ability to see the torpedo flying above the water. However, it can use underwater listening devices to detect the sound waves generated by the torpedo as it moves through the water.
Naval vessels are equipped with sonar systems, which are used to detect and track underwater targets. Sonar works by emitting sound waves into the water and listening for the echoes that bounce back. When a torpedo is launched underwater, it creates disturbances in the water, generating sound waves that can be picked up by the vessel's sonar.
By analyzing the incoming sound waves, the vessel's crew can identify the presence of a torpedo and track its trajectory. This allows them to take the necessary evasive actions or activate countermeasures to protect the vessel.
It's important to note that the effectiveness of detecting a torpedo with sonar depends on various factors, such as the torpedo's speed, size, and stealth capabilities. In some cases, the vessel might not have enough time to react and mitigate the threat posed by the torpedo before it reaches the target. Nevertheless, listening for the torpedo underwater remains a primary method for early detection.