What is TWR?

TWR is the abbreviation used for “Thrust-to-weight ratio”. can be translated as weight-to-thrust ratio. It gives the ratio of the thrust of the rocket engine to the total mass of the rocket. If TWR is high, it means that the increase in thrust force with the mass the rocket loses is high.

If the TWR ratio is greater than 1, it means that the rocket is moving in the opposite direction with more acceleration than gravity. Since the acceleration will be higher at higher TWR values, the required TWR value is better depending on the structure of the rocket.