Thrust to Propulsive Power
Thrust is a reaction force described quantitatively by Newton’s second and third laws.
A very common question is how to contrast the thrust rating of a jet engine with the power rating of a piston engine.
A jet engine has no propeller, so the propulsive power of a jet engine is determined from its thrust as follows. Power is the force (F) it takes to move something over some distance (d) divided by the time (t) it takes to move that distance.In case of a rocket or a jet aircraft, the force is exactly the thrust produced by the engine. If the rocket or aircraft is moving at about a constant speed, then distance divided by time is just speed, so power is thrust times speed.
|propulsive power (W)
|thrust produced by the engine (N)