The propulsion provided by the engines.
An arm throwing it is causing the thrust.
An engine driving a propeller or a turbine causes thrust.
The spinner alone gives no thrust. The shape of the propeller is what moves the air and gives thrust.
Lift, Drag, Thrust and Weight.
Thrust is the forward motion of the airplane provided by the engines. Lift is the upward force on an airplanes wing.
Airplanes generate thrust by using jet engines. These engines take in air, compress it, mix it with fuel, ignite the mixture, and then expel it at high speed out of the back of the engine. The action-reaction principle of physics then creates a forward thrust that propels the airplane forward.
Airplanes and rockets are both vehicles designed for travel through the air/space. They both use propulsion systems to generate thrust for movement and wings/fins for stabilization and control. Both airplanes and rockets rely on aerodynamics principles for lift and propulsion.
Thrust
Thrust
There are four factors that are exerted on airplanes. Thrust, Drag, Gravity and lift. Lift must be higher then gravity to make a plane go up. Thrust be be stronger then drag to make a plane go faster. As a plane becomes larger, more drag is added to the plane. This requires more thrust to maintain the same speed. So, as a plane gets larger the amount of power an engine must produce goes up drastically. Small planes with the same horsepower or thrust ratings will alays be able to go faster.
Old Airplanes and new are similar because they work under the same principles. Creating enough lift to become airbourne. To do so a plane needs to be light enough with enough thrust and enough surface area of the wings to create the lift
Fixed wing aircraft use propellers for thrust only. A helicopter uses it's rotors for lift, thrust, and directional control. The tail rotor uses blade pitch to control yaw.