You take a nozzle and you create 10 random variations on the nozzle.

How do you design that nozzle?

And after 45 generations, you have this incredible nozzle.

You pump it at a high pressure through a nozzle.

And he will, or she will, calculate the optimal design of the nozzle.

A motor nozzle exit cone extension will increase the vacuum specific impulse of the motor.

Typical objects in this category are fasteners, yaw and yo yo weights, nozzle covers, lens caps, multiple payload mechanisms and so forth.

Efforts began to transition Redesigned Solid Rocket Motor nozzle production from Utah to the former Advanced Solid Rocket Motor site in northeast Mississippi.

SEP has also delivered to Pratt and Whitney the first carbon carbon divergent nozzle intended for the RL10 cryogenic engine and the tests in 1997 were highly satisfactory.

In order to supplement the thrust of the first stage, two SRBs with a thrust of 160 tonnes each are installed. Thrust direction control of the SRBs is performed through a movable nozzle.

One notable example right before the launch, SpaceX engineers found a few cracks in the second stage engine nozzle extension. Rather than haul the spacecraft back to the shop for repairs, they simply analyzed the flaw, trimmed off the affected section, and proceeded with the launch.