SHIP CHARACTERISTICS 



The ship is a single screw cargo ship, built by the 



Shipbuilding Corporation. An inboard profile is shown in Figure 1. 

 Principal dimensions are as follows: 



Length: Overall 572'0" 



Between Perpendiculars 541'0" 



Breadth: 75'0" 



Depth: 42'6" 



Draft: 30' 6" 



Tonnage: Deadweight 12, 700 Tons 



Maximum Displacement: 20, 110 Tons 



Block Coefficient: . 57 



A. MAIN ENGINE DESCRIPTION 



The main engine consists of one high and one low press steam 

 turbine arranged in the installation to form a cross -compound -type unit. 

 Both turbines are equipped with eight stages for ahead operation. In 

 addition, the low pressure turbine is equipped with two stages for astern 

 propulsion. Each reverse stage carries a double row of blading. The 

 two turbine rotors are connected through flexible couplings to the 

 MD-97-D, double helix, double reduction gear, which is connected to 

 the propeller shafting. 



For ahead opeiation the unit is rated at 16, 500 SHP at approx- 

 imately 105 RPM (Normal) and 18, 150 SHP at approximately 108 RPM, 

 when supplied with steam at 585 psig, 840° F. and exhaust vacuum of 

 28.5" Hg. 



When operating astern, the turbine -gear set will develop 

 of rated ahead torque at 50% of ahead speed with rated steam conditions, 

 and may be operated continuously at a speed not in excess of 70% of 

 rated ahead RPM at 2. 5 inches Hg abs. 



B. REDUCTION GEAR DESCRIPTION 



The speed reducing unit between the turbine and the propeller 

 is a double -reduction, double -helical gear. 



31 



