Þ For Aircraft propulsion
the big advantage of using a propeller is that less fuel must be carried on board. • The rate of airflow through the
propeller can be as much as
three orders of magnitude larger than the rate of fuel consumption of the driving
engine.
Þ
ÞPropulsion using a propeller has much better efficiency when compared to propulsion with a rocket. • The aircraft using a propeller
can travel much greater distances before having to
refuel.