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Important for Design - Coggle Diagram
Important for Design
Minimise external ice from
Deck
Winch
Ladders
Masts
Main Engine and Propulsion
Direct Mechanical
Fixed pitch
CPP
Diesel-Electric
Most Important
Torque/RPM curve
Machinery used long periods at high power
Torsion loads and vibrations
Ice contact
Ice BTW hull and propeller blade
Blockage of nozzles
Good EQP
Searchlight
Radar
Windows heating
Tug Type
ASD
Conventional
Stability
Ice growth quick
High Weight
Ice breaking capacity
Performance x Reduced fuel consumption
Towing
not affected by temperature
Structure thicker
Propeller and rudder protection
Nozzle or Open Propellers
Engine cooling arrangements
Internal heating