German Type XXI U-boats used this kind of propulsion system.
- Atomic
- Bio-diesel
- Diesel-electric
- Heated hydrogen peroxide
Diesel-electric. Originally designed to use an advanced heated hydrogen peroxide power plant, during development the system was changed to diesel-electric with three times the number of batteries of a Type VII U-boat.
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HistoryNet Staff (2/27/2026) Daily Quiz for April 20, 2019. HistoryNet Retrieved from https://historynet.com/quiz190420/.
"Daily Quiz for April 20, 2019."HistoryNet Staff - 2/27/2026, https://historynet.com/quiz190420/
HistoryNet Staff 4/20/2019 Daily Quiz for April 20, 2019., viewed 2/27/2026,<https://historynet.com/quiz190420/>
HistoryNet Staff - Daily Quiz for April 20, 2019. [Internet]. [Accessed 2/27/2026]. Available from: https://historynet.com/quiz190420/
HistoryNet Staff. "Daily Quiz for April 20, 2019." HistoryNet Staff - Accessed 2/27/2026. https://historynet.com/quiz190420/
"Daily Quiz for April 20, 2019." HistoryNet Staff [Online]. Available: https://historynet.com/quiz190420/. [Accessed: 2/27/2026]