They either have a piston engine with a propeller or a jet that thrusts them forward.
Some examples of reaction engines in airplanes are turbofans and turbojets.
'Propel' means 'drive forward', so 'propel forward' means 'drive forward forward'. Better to avoid it!
propulsion makes something move forward,for example;airplanes have propulsion because without propulsion it would not move forward.
airplanes and aircraft
The engines propel the airplanes.
It lowers their centre of balance and allows them to use the full power of their legs to propel themselves forward.
Thrust
Force applies to ice hockey because the ice hockey player must propel himself forward when he goes for the puck. When someone propels themselves forward, this is force.
They don't exactly flap their wings like birds, but they propel themselves through the air sometimes by a propeller, but mostly with jet engines attached under the wings.
The engine.
Sperm propel themselves through a process called flagellar swimming. They have a long, whip-like tail called a flagellum that beats and moves in a wave-like motion, generating a force that propels them forward. This movement is driven by the energy produced by mitochondria located at the base of the flagellum.
Propel