Click Here to
Order this information in Print

Click Here to
Order this information on CD-ROM

Click Here to
Download this information in PDF Format


Click here to make your Home Page

Page Title: Engine Order Telegraph
Back | Up | Next

Click here for a printable version




Information Categories
.... Administration
Food and Cooking
Nuclear Fundamentals
  Educational CD-ROM's
Printed Manuals
Downloadable Books



Figure 2-7.— Rudder angle order indicator-transmitter. marked “ORD” is moved to the desired rudder angle. The order is displayed in after steering on another rudder  angle  order  indicator-transmitter,  from  which  the after helmsman receives orders. A push switch next to the rudder angle order indicator-transmitter on the bridge operates a bell in after steering to call the helmsman's attention to a change in rudder angle. ENGINE ORDER TELEGRAPH On the conning platform, an instrument called the engine order telegraph (fig. 2-8) communicates speed orders  to  the  engineroom.  The  engine  order  telegraph  is circular, with duplicate dials divided into sectors for flank, full, standard, 2/3, and 1/3 speed ahead; 1/3, 2/3, and full speed back. A hand lever fitted with an indicator travels over the circumference of the circular face of the instrument. When the handle is moved to the required speed sector, the engineroom complies with the order immediately  and  notifies  the  bridge  by  operating  an answering pointer that follows into the same sector. A ship with one engine has a telegraph with a single handle. Two-engine ships usually have a handle on the port side and another on the starboard side of the telegraph,  controlling  the  engines  on  the  corresponding sides, (The engine order telegraph shown in figure 2-8 is equipped with separate handles for port and starboard engines.) Be sure you have grasped the handle for the correct engine before you operate it. If the answering pointer moves to the wrong sector, does not move at all, or moves to a line between two sectors so that you are in doubt about the speed set on the engine, repeat your operation on the lever. If the pointer does not move to Figure 2-8.— Engine order telegraph. clear up the riddle, report the situation immediately to the officer of the deck. If a casualty occurs in the engineroom, the speed may be changed by the engineroom without orders from the officer of the deck. In such an event, the answering pointer moves to the speed set in the engineroom. Report any change in the engine order telegraph to the officer of the deck at once. Also report to the OOD immediately if you fail to receive an answer on the pointer when you indicate a speed. The safety of your own ship and others may depend on the immediate and correct transmission of orders to the engines. Before  getting  underway,  the  telegraph  is  always tested  by  moving  the  handle  to  each  sector,  and checking the response on the answering pointer. In the event of casualty to the telegraph, the engineroom receives orders over the sound-powered phones. ENGINE REVOLUTION TELEGRAPH On or near the engine order telegraph, you normally will   find   another   device,   the   propeller   order 2-7

Privacy Statement - Press Release - Copyright Information. - Contact Us - Support Integrated Publishing

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business