USS Enterprise CV-6
The Most Decorated Ship of the Second World War

• Standard Rudder - 8 to 10 degrees (depending on force and direction of wind).
• Full Rudder - 32 degrees.

• Number 1 - Forward starboard, outboard.
• Number 2 - After starboard, inboard.
• Number 3 - After port, inboard.
• Number 4 - Forward port, outboard.

The amidship fire rooms, containing boilers 1, 4, and 7, are the control firerooms.

Unless otherwise ordered:-

• Full speed is 5 knots more than Standard.
• Flank speed is 10 knots more than Standard.

1. The Engine Order Telegraph shall be considered the primary, and the Revolution Telegraph the secondary, of the two order systems.
2. Any movement of the engine telegraph automatically cancels the revolutions indicated on the engine revolution telegraphs. Any particular number of revolutions then desired must be reset on the revolution telegraph and shall be followed by the engine room.
3. If a casualty to the engine order telegraph renders that system inoperative, the revolution telegraph may be used to replace it. In such a situation the use of the following signals are prescribed:-

   Revolution Indicator	Meaning		Revolution Indicator	Meaning
   000	Stop		906	Back one-third
   001	Ahead one-third		907	Back two-thirds
   002	Ahead two-thirds		908	Back full
   003	Ahead standard		909	Back emergency
   004	Ahead full
   005	Ahead flank

4. It is desirable to emphasize that the engine order telegraph is the primary system and that the revolution telegraph is merely a convenience to the conning station. As a matter of custom, the conning station should, after manipulation of the engine order telegraph, reset the revolution telegraph to the number of revolutions required. The resetting of the revolution telegraph after a change of engine order is not made an absolute requirement because to do so might interfere, while maneuvering in restricted waters, with expeditious transmission of orders to main engine control.

1. Maneuvering: - While maneuvering when getting underway with engines stopped, the Standard speed, unless otherwise ordered, will be 15 knots. Until the required RPM's are reached, the following steam pressures will be carried using No. 1 by-pass and nozzle No.8.
   • Ahead 1/3 - 40 pounds on H.P. Chest.
   • Ahead 2/3 - 80 pounds on H.P. Chest.
   • Ahead Standard - 140 pounds on H.P. Chest.
   • Ahead Full - 250 pounds on H.P. Chest.
2. If RPM's corresponding to standard speed are reached they will thereafter be maintained.

1. Backing:- Pressure in the astern steam chest rather than actual RPM's will govern when backing the main engines. When a backing bell is received, throttlemen shall open the astern throttle and admit a shot of steam into the astern chest to start rotors revolving. Then throttle down and maintain the following pressures :-
   • Back 1/3 - 50 pounds on Astern Chest.
   • Back 2/3 - 75 pounds on Astern Chest.
   • Back Full - 150 pounds on Astern Chest.
   • Back Full Emergency - Use all steam available up to 300 pounds on Astern Chest.
2. When the RPM's corresponding to Standard speed are reached they will thereafter be maintained.

Examples:

• "Starboard engine, ahead standard".
• "Port engine, back one third".
• "All engines, back full".

1. A casualty to the steering system which in any way involves loss of control of the rudder must obviously be handled with the greatest possible promptness, and particularly so in confined waters or in the company of other vessels when the immediate safety of the ship may be at stake. The essential nature of adequate preparation to meet, this casualty is shown in recent instructions of the Commander-in-Chief, U.S. Fleet, which require, as a training drill, that during each watch underway steering control shall be shifted to one of the emergency stations except when the Commanding Officer considers such procedure to be inadvisable.
2. There are five stations from which the ship can be steered, as follows:

   Station	Name	Location
   Pilot House	Bridge	Pilot House
   Conning Tower	Conning Tower	Conning Tower
   Secondary Ship Control	Battle Two	After end Navigation Bridge
   Central Station	Central	A-535-C
   Steering Engine Room	Trick Wheel	D-524-E

3. Communications can be had with all steering control stations over:
   1. Battle phone circuits (1-JV).
   2. Sound power phones (X-1JV)
   3. Ship's Service phones.
   4. In addition, orders to the trick wheel can be given over the general announcing system and the steering telegraph.
4. A steering emergency alarm, which consists of a siren in central station and in steering engine room, can be operated from the pilot house, conning tower, secondary ship control, and central station. Steering engine room takes control immediately when this alarm is sounded.

Supercedes Articles 909, 910, and 911 G.O.B.

Subject: Ship Control Casualties.

1. Loss of steering Control. Steering control must be regained immediately. The procedure shall be as follows:
   1. Steersman:
      1. Actuate steering emergency alarm. (This alarm is a siren and the lever should be held down at least 10 seconds to insure sounding.)
      2. Sing out to 0.0.D., "Lost Steering control"
      3. Start indicating desired rudder angle with steering telegraph.
      4. Turn wheel until mechanical pointer is amidships preparatory to taking control again when the casualty is corrected.
   2. Steering Engine Room Watch.
      1. When siren sounds take control at once, regardless of rudder angle and without further orders.
      2. Apply rudder as indicated by the steering telegraph. Later, if so ordered by O.O.D., steer course specified.
      3. Start up standby unit and shift to that unit if necessary. If unnecessary to shift, stop the standby unit.
      4. When casualty is corrected, and when directed by O.O.D., place rudder amidships and relinquish control.
   3. Officer-of-the-Deck.
      1. Conn through steering telegraph.
      2. At discretion, order Steering Engine Room to steer specified course.
2. Failure of Engine Order Telegraph or Engine Revolution on Telegraph.
   1. In case of casualty to either of these circuits, orders to the Forward Engine Room shall be given over the Maneuvering Circuit (1-JV or X-IJV or the SS Phone, informing the Forward Engine Room to disregard the telegraph
3. Controlling Station Obliterated -

   Bomb or shell hit on bridge: no personnel remaining to handle casualty. Ship Control must be transferred quickly to another station under the direction of the Executive Officer.

   1. Executive Officer (in Battle Two).
      1. Sound steering emergency alarm.
      2. Order Steering Engine Room to steer a specified course. (Use 1-JV, X-1JV or SS phones).
      3. Direct Central Station to "Shift ship control to Battle Two". (Use 1-JV, X-1JV or SS Phones.)
      4. Order Steering Engine Room to relinquish steering control.
      5. After Battle Two has Ship Control (engine controls, steering control, and rudder angle indicator control), the Executive Officer may take station in or near the conning tower and shift ship control to the conning tower, as desired.
   2. Steersman, Battle Two:
      1. Turn wheel until mechanical pointer is amidships preparatory to taking steering control.
   3. Steering Engine Room Watch:
      1. When Siren sounds, take control at once and steer course directed by Executive Officer.
      2. When directed by Executive Officer, place rudder amidships and relinquish steering control.
   4. Central Station Watch:
      1. When ordered by Executive Officer, shift ship control to Battle Two.