I-400-class submarine ( 伊四百型潜水艦, I-yon-hyaku-gata sensuikan) – the largest submarines of World War II and remained the largest ever built until the construction of ballistic missile submarines in the 1960s. This prototype fighter and bomber was the first flying wing plane to be powered by jet engines. Its design was a response to a call from Luftwaffe commander Hermann Göring for a light bomber that would be capable of carrying 1,000kg across a distance of 1,000 kilometres at a speed of 1,000km per hour. Heinkel He 277 – a planned, advanced long-range bomber design, designated by RLM by February 1943, inheriting many He 219 prototype design features during its evolution but never built as a complete aircraft, evolved to be an Amerikabomber candidate, to be powered with four BMW 801 radial engines and up to 11,000km range.

Landkreuzer P. 1500 " Monster" – a proposed super-heavy self-propelled gun, weighing 1500 metric tons and armed with the 800mm Schwerer Gustav/Dora gun. Fritz X, a guided anti-ship glide bomb, the world's first precision guided weapon ever deployed in combat.The Nazis were famous for their development and design of innovative weapons, including their revolutionary Wunderwaffen (Miracle Weapons). Although some of the Nazis’ weapon designs were undoubtedly far-fetched and impractical – such as the Panzer 1000, a monster tank weighing 1,000 tonnes – others were highly sophisticated and way ahead of their time – and the competition. Dan talks to Tim Tate about the uncomfortable history of the Nazi secret service's operations in the UK. Listen Now 5. Zielgerät 1229 Heinkel He 162 Spatz – Winner of the Volksjäger (People's Fighter) design competition for a single engined turbojet fighter.

Type XI – a U-boat designed to carry the Arado Ar 231 collapsible floatplane and have 128mm turrets; four were laid down but canceled at the outbreak of World War II. German soldiers operate a Goliath mine with a remote control in Russia in April 1944. Credit: Bundesarchiv, Bild 101III-AhrensA-026-12 / August Ahrens / CC-BY-SA 3.0 Junkers Ju 390 – an Amerikabomber candidate with six radial engines with a range of 9,700km, two airworthy prototypes built and flown.

3. Goliath

Schwerer Gustav (Heavy Gustav) – an 800mm railway gun, the largest artillery piece ever used in warfare. Neufeld, Michael (13 April 2020). "The Myth of the German "Wonder-Weapons" ". Smithsonian National Air and Space Museum . Retrieved 19 April 2020.

Fallschirmjägergewehr 42 – an automatic battle rifle developed specifically for the Fallschirmjäger. Blohm & Voss BV 238 – a super-heavy transport flying boat and bomber, it was the heaviest aircraft ever built by the time of its completion.

Wunderwaffe ( German pronunciation: [ˈvʊndɐˌvafə]) is a German word meaning "wonder-weapon" and was a term assigned during World War II by Nazi Germany's propaganda ministry to some revolutionary "superweapons". Most of these weapons however remained prototypes, which either never reached the combat theater, or if they did, were too late or in too insignificant numbers to have a military effect. [1] Karl-Gerät, the largest calibre (up to 60cm), self-propelled mortar ever deployed – seven examples built, six seeing combat 1941–45. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.

Robert F. Dorr (15 November 2013). Fighting Hitler's Jets: The Extraordinary Story of the American Airmen Who Beat the Luftwaffe and Defeated Nazi Germany. Voyageur Press. ISBN 978-0-7603-4398-2.Witkowski, Igor (2000, 2003). The Truth About the Wunderwaffe. Transl., Bruce Wenham. Farnborough, England: Books International/European History Press.