Mechanical Device for Storing Rotational Energy
This page is the CodyCross answer for the clue below from Space Exploration, Group 909, Puzzle 5 (Crew Members).
Question is: Mechanical Device for Storing Rotational Energy
and the answer is: FLYWHEEL
Word Meaning:
FLYWHEEL — (mechanical engineering) A rotating mass used to maintain the speed of a machine within certain limits while the machine receives or releases energy at a varying rate, or as a form of energy storage.
Definitions from Wiktionary.