User Guide
attitude.Your helmsman automatically controls the trim angle whenever you order a depth change.
HP Air:
This panel is used to monitor the current charge level in the high-pressure air banks and to
charge the banks when they are depleted.A charge of 50% is necessary for successful weapon
launches.The charge can be increased by only 10% when the ship is submerged.You must come
to Periscope Depth and ventilate while you charge to fully charge the banks.
• Click the unlit Charge button to commence charging your high-pressure air banks.The button is
lit when a charge is in progress.
• Click the lit Charge button to secure the charge.
Towed Array:
From this panel you select and deploy the desired towed sonar array (Port or
Starboard).The Scope field indicates the length or percentage of the array currently streamed.
• Click Port or Starboard to select that array to be streamed. Only one towed array can be
deployed at a time.
• Click Stream to deploy the array.
• To stop streaming or retrieving the array, click OFF.
• To retrieve the towed array, click Retrieve.
Course:
On this Course Indicator, the red needle indicates current course.The black needle
indicates ordered course
• To order a new course heading, click the desired bearing on the Course Indicator.
High Frequency Sonar:
The toggle switch activates the High Frequency Sonar System (HFSS),which
is used to detect small objects such as mines at short range.The High Frequency Sonar screen
shows the location of any object near your submarine’s bow. If an object is close enough, clicking
on it designates it as a sonar contact.
• Click
ON
to activate HFSS.
• To designate targets (such as mines), point the cursor at the object and click.A mark is placed
on the Nav map indicating each return received by the HF sonar.
Ventilate:
Ventilation is only necessary when you need to recharge the high-pressure air banks.
See HP Air above.The ship must be at or above periscope depth (65 ft.) to ventilate.
• Click the unlit Ventilate button to commence ventilating.
• Click the lit Ventilate button to secure ventilating.
Stern/Bow/Rudder:
Your crew controls the bow and stern planes automatically when you change
depth but you can order a course change with the Rudder.
• Click the desired number in the Rudder Indicator to order a Rudder change.
• Click zero in the Rudder Indicator or click in the Course Indicator to reset the rudder.
NOTE:
The ship will eventually turn in a circle if you do not reset the rudder to zero or order a
specific course.
Engine:
This dial known as an Engine Order Telegraph orders engine speed. Engine speeds
translate to ship speeds as defined in Ship Stations/Task Bar/Orders Menu on p. 36. Flank
(maximum) speed for the 688(I) is 32 kts.
• Click the desired option to order that Engine Speed.
Emergency Blow Valve:
To surface your ship quickly in an emergency situation, click the red handle
to initiate the Emergence Blow procedure. Click again to secure the blow. Remember to recharge
your air banks following an Emergency Blow.
Depth:
Actual and ordered depth is shown in feet.
• Right/left click the digits in the ordered field to order a new depth.
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