Observation Periscope

The observation periscope is one of the two periscopes in the Type VII. It is located in the middle of the control room, right next to the ladder. The periscope can be raised and lowered by a lever to the right of the navigation chart. It can only be fully extended, or fully retracted. In it's retracted position it appears as a black column, going from the floor to the roof. When extended the eyepiece and handles for the periscope raise up from the floor, and the periscope can be used.

When extended the periscope can be used to observe above the surface while submerged at depths up to 12m. There are two zoom levels available, 1.5x and 6x. These can be selected using the mouse wheel. The periscope has a reticle identical to that of the attack periscope. The crosshairs in the center can be used in conjunction with the TDC to aim torpedoes, or to find the relative bearing of other vessels using the scale on the top of the view. On the left side and on the bottom of the reticle there are graduations in centiradians. The scale on the light can be used to estimate the range to other ships by measuring how many centiradians tall a ship appears in the periscope. Divide the height of the ship by the centiradians, and multiply by 4 if the periscope is zoomed in. This gives you the range to the ship in hectometers.

Because of it's larger head, the observation periscope is detectable by enemy vessels at longer ranges than the attack periscope.