Question

Gases from the combustion chamber were so hot that pipes around the

nozzle carried coolant to keep the nozzle from melting.

Answer 1

Pipes around the nozzle carried coolant that kept the nozzle from melting.

Step-by-step explanation:

This was due to the high temperatures of the hot gases that came out of the combustion chamber. Several new ideas for future rocket engines have been proposed.

I hope this helps you! :)