NOx	Nitrogen Oxides
SOx	Sulphur Oxides
CO	Carbon Oxides
HC	Hydrocarbons
PM	Particular Matter
IMO	International Maritime Organization
MARPOL	MARine POLution convention
EEDI	Energy Efficiency Design Index
ALS	Air Lubrication System
R	Total Resistance
RP	Pressure Resistance
RW	Wave Resistance
RF	Frictional Resistance
RA	Aerodynamic Resistance
RH	Hydrodynamic Resistance
RVP	Viscous Pressure Resistance
c	Dimensionless Drag Coefficient
ρ	Fluid Density
ν	Velocity
S	Surface of the ship’s hull
AL	Air Lubrication
MALS	Mitsubishi Air Lubrication System
WAIP	Winged Air Induction Pipe System-R&D Engineering
SAVER Air	SAVER System-Samsung Heavy Industries
BHP	Brake Horse Power
GPS	Global Positioning System
MT	Motor Tanker
kn	Knots
MBB	Main Bus Bars
AZIPOD	Azimuthal stern thruster
FIXPOD	Fixed gondola thruster
BT	Bow Thruster
PP	Propeller Power
ALSP	Air Lubricating system Power
SPP	Summary Propulsion Power