| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| (Sarah of the Clue Crew reporting in a submarine) Submarines detect enemy vessels with this system that uses devices called hydrophones | sonar | $800 | DJ | SUBMARINE LIFE | 2002-10-10 | #4164 | |
| After WWI the Allied Submarine Detection Investigation Committee developed this to detect subs | sonar | $200 | J | SUBMARINES | 1993-05-20 | #2019 |