The propulsion provided by the engines.
An arm throwing it is causing the thrust.
An engine driving a propeller or a turbine causes thrust.
With an engine--either prop or jet.
The spinner alone gives no thrust. The shape of the propeller is what moves the air and gives thrust.
an engine for thrust and wings/fins for control.
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.
Thrust
Thrust
Airplanes use air for lift and for thrust. If there's no atmosphere, they can't fly. Even a jet engine needs to burn and compress air.
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