It is called a nozzle
The narrow opening at the tail end of a rocket is called the rocket nozzle. It is designed to control the flow and direction of the exhaust gases produced by the rocket engine, allowing for propulsion and steering of the rocket. The shape and size of the rocket nozzle are crucial in determining the performance of the rocket.
The narrow opening at the tail end of a rocket is called the nozzle. The nozzle plays a critical role in directing and accelerating the flow of hot gases expelled from the rocket engine, producing thrust that propels the rocket forward. The shape and design of the nozzle are crucial in determining the efficiency and performance of the rocket.
A funnel is a cone-shaped device that tapers to a narrow opening on one end. It is used to guide quantities of liquid or other substances into a small opening.
At the center of every rocket is a device called the combustion chamber. Here rocket fuel is mixed and ignited into a controlled explosion. The explosion produces a pressure on the walls of the chamber. There is only one (external) opening to the chamber which opens to the rear of the rocket. Through this opening the exploded products escape, because of this there is no force exerted by the wall of the chamber against the explosion. This means that there is an unopposed force on the opposite end of the chamber - the force that moves the rocket 'forwards'.
The end of it's tail
Propellant Controls - usually tail fins Gyro - keeps rocket on course Payload
Rocket Records ended in 1999.
Rocket Rods ended in 2000.
Rocket Jets ended in 1997.
Rocket from the Crypt ended in 2005.
Project Rocket ended in 2003.
The Rocket - newspaper - ended in 2000.