рушійна ефективність повітряного гвинта
propulsive efficiency
propeller propulsive thrust
propulsive horse-power of propeller
propeller efficiency
propulsive gas
propulsive screw
negative thrust propeller / negative-thrust propeller
fighting capacity/efficiency
high aerodynamic efficiency
loss of efficiency
operational efficiency
restoring fighting efficiency
artillery fire efficiency
fighting efficiency
fire effectiveness (efficiency)
air efficiency
all-around efficiency
approach efficiency
brake horsepower efficiency
increase of efficiency
indicated thermal efficiency
useful efficiency
high-efficiency engine
intrinsic efficiency
air burst advanced hit efficiency and destruction (AHEAD)
adiabatic efficiency
combustion efficiency
fuel efficiency
mechanical efficiency
overall efficiency
volumetric efficiency
wind tunnel efficiency