In aviation terms, weight is the gravity pulling you down, which prevents us from floating around in the air. Also, thrust is the power the turbine, or the propeller, generates that pushes the airplane forward.
Thrust is the force generated by an engine to propel an object forward, like an airplane. Weight is the force of gravity acting on an object, pulling it downward towards the Earth. In order for an object to fly, the thrust generated by its engines must be greater than its weight.
The forces acting on a plane flying at a steady height are lift, weight, thrust, and drag. Lift is generated by the wings and opposes the weight of the aircraft. Thrust is produced by the engines and counters drag, which is caused by air resistance. At a steady height, these forces are balanced.
Thrust is independent of weight. In straight and level flight thrust operates forward, drag operates to the rear, weight operates downwards and lift operates upward. For a rocket, traveling straight up (away from the center of the earth), drag and weight operate downwards while thrust operates upwards. --- The above answer appears correct (where "operates" is taken to mean "exerts force in the indicated direction") - additional discussion follows: (I am assuming we are talking about a rocket or an aircraft for the purposes of this answer. I am also assuming that by weight, we mean mass) The mass of a craft does not affect the thrust per se, that is, they are independent quantities as discussed below. Since the thrust is a function of the type (efficiency) of engine and the amount of fuel delivered per second, a formula expressing the thrust will not include the mass of the craft directly, hence the independence. However, of course, the thrust that a given craft can generate will be a function of the size of its engines, the type of fuel, and the amount of fuel delivered to the engine per unit time. Since the weight of the craft is partly determined by the size of the engine and the specific gravity of the fuel, there is a second order relationship between the weight of the craft and the thrust. The acceleration of the craft under thrust will of course depend on the thrust and the mass according to Newton's Second Law, F=MA, or in this case, the form A=F/M. PS: I'm not considering the relativistic realm either - you're on your own there!
The total net force on an aircraft in flight is usually studied in terms of four perpendicular componentsreferred to as lift, weight, thrust, and drag.
The lift, drag, thrust, and weight formula used in aviation is a way to calculate the forces acting on an aircraft during flight. It states that lift must equal weight and thrust must equal drag for the aircraft to maintain level flight.
Lift, weight, thrust and drag.
Lift equals weight and thrust equals drag.
lift and thrust overcome weight and drag
As long as the thrust is more than the weight of the rocket (toy or otherwise) the rocket will accelerate. When the thrust matches the weight, the rocket will cruise. When the thrust is less then the rocket will slow.
Thrust is the force generated by an engine to propel an object forward, like an airplane. Weight is the force of gravity acting on an object, pulling it downward towards the Earth. In order for an object to fly, the thrust generated by its engines must be greater than its weight.
The payload's weight
It is important because it is essential for for climbing of aircraft. There is a limit for thrust to weight ratio. When an airplane exceeds it, it cannot climb effeciently.
Lift is opposite of weight Thrust is opposite drag. When lift >weight plane climbs. If lift < weight you best find a place to land. If thrust> drag you accelerate. If drag>thrust you slow down. High and fast are your friends. Low and slow are out to kill you.
Thrust
lift,thrust,weight,drag,
Thrust, Drag, Lift, Weight (Gravity).
A thrust to weight ratio of 1:1 is good on RC planes so I'd recommend 5KG of thrust