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Introduction…………………………………………………………………………………….. 5
Scope of this Paper………………………………………………………………………….. 5
Chapter 1……………………………………………………………………………………….. 6
Ship Definitions and Hull Resistance…………………………………………………….. 6
Ship types………………………………………………………………………………….. 6
A ship’s load lines………………………………………………………………………… 6
Indication of a ship’s size………………………………………………………………. 7
Description of hull forms……………………………………………………………….. 7
A ship’s resistance……………………………………………………………………….. 9
Admiralty coefficient…………………………………………………………………… 13
Chapter 2……………………………………………………………………………………… 14
Propeller Propulsion………………………………………………………………………… 14
Propeller types………………………………………………………………………….. 14
Flow conditions around the propeller……………………………………………… 15
Efficiencies……………………………………………………………………………….. 16
Propeller thrust T and torque QB reacting on main engine………………….. 17
Propeller dimensions and coefficients…………………………………………….. 18
Manufacturing accuracy of the propeller…………………………………………. 19
Slip ratio and propeller law…………………………………………………………… 20
Heavy running of a propeller………………………………………………………… 22
Manoeuvring speed and propeller rotation………………………………………. 26
Chapter 3……………………………………………………………………………………… 27
Engine Layout and Load Diagrams…………………………………………………….. 27
Power functions and logarithmic scales………………………………………….. 27
Propulsion and engine running points…………………………………………….. 27
Engine layout diagram………………………………………………………………… 29
Standard engine load diagram……………………………………………………… 29
Extended engine load diagram……………………………………………………… 31
Use of layout and load diagram……………………………………………………… 31
Use of layout and load diagrams – examples with FP-propeller…………… 32
Use of layout and load diagrams – example with CP-propeller……………. 35
Influence on engine running of different types of ship resistance –
plant with FP-propeller………………………………………………………………… 36
Influence of ship resistance on combinator curves –
plant with CP-propeller……………………………………………………………….. 38
Constant ship speed line for increased propeller diameter…………………. 38
Estimations of engine/propeller speed at SMCR for different single
screw FP-propeller diameters and number of propeller blades……………. 40
Closing Remarks…………………………………………………………………………….. 42
References……………………………………………………………………………………. 42
https://www.dropbox.com/s/9a0yviebudv3rls/Basic%20Ship%20Propulsion.pdf?dl=0
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