What is a Periscope? | The Submarine Pen: Your Home for Submarine and U-boat History

What is a Periscope?






"Periscopes allow a submarine, when submerged at a shallow depth, to search visually for nearby targets and threats on the surface of the water and in the air. When not in use, a submarine's periscope retracts into the hull. A submarine commander in tactical conditions must exercise discretion when using his periscope, since it creates a visible wake and may also become detectable by radar, giving away the sub's position (Source)."

Periscope Picture
A periscope from the inside of the submarine. (source).

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