ed essentially with performance in the context of power required to propel a ship at a given speed and va... lacement, //V// speed and //P// any corresponding power.
===== Advance, speed of =====
See: [[#speed_of_a... action|Resistance augment fraction]].
===== Brake power =====
See: [[#power_brake|Power, brake]].
===== Coefficient, Admiralty =====
The ratio between the power output and the power input of any machinery installation.\\
<m>eta_M=P_B/... spectively and //P//<sub>I</sub> is the indicated power (which see).
===== Efficiency, propeller, behind ... =
The ratio between the power //P//<sub>T</sub>, developed by the thrust of the
e of a shock. (See: [[#slamming|Slamming]])
===== Power in waves, mean increase in =====
The mean increase in power in wind and waves as compared with the water at t... ant. Usually speed loss is determined at constant power (turbine plant) or constant torque (diesel plant)