They either have a piston engine with a propeller or a jet that thrusts them forward.
'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.
The engines propel the airplanes.
airplanes and aircraft
It lowers their centre of balance and allows them to use the full power of their legs to propel themselves forward.
The force of his kick managed to propel the ball high into the air, and past the goalkeeper's outstretched arms. Jet skis use streams of water to propel themselves across the surface. The speed gained moving down the ramp will propel a ski jumper through the air.
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.
Airplanes primarily use jet fuel as their main source of energy to power their engines. The combustion of jet fuel in the engines creates high temperatures and gas flow that propel the aircraft forward.
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.
while flapping a eagles wings eagles propel themselves forward.This propulsion is the force of thrust which helps birds maintain forward movement