The “Nuclear Bomber” of the Luftwaffe Books and articles on the Internet are full of theories that Nazi Germany possessed atomic bombs during world war II or that they were almost ready for use. As one of the proofs, photos of a converted Heinkel He 177 found in Prague in 1945 are shown. The modified bomb bay could only have been planned for an atomic bomb - so the claim goes.
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A walk in the evening mood at the promenade of the beautiful island of Lanzarote
The bomber in question: Type Heinkel He 177A-5, Code KM+TB. This aircraft was build by Heinkel Oranienburg (north of Berlin).
7 photos: Uwe W. Jack Collection
This model of the Junkers Ju 287 jet bomber shows the open bomb bay with six bombs of 500 kg weight each. The long and narrow doors fold to the side and do not enter the air stream very much.
Photo: Space X
Private Opinion of Uwe W. Jack
Every German Luftwaffe Aircaft was given a four-letter code that allowed for a clear identification. So the KM+TB is Heinkel construction number 550002, Heinkel labeled this aircraft as He 177 V38 (V = Versuchsmuster / test article no. 38). It was assigned to the Night Fighter Test Station Werneuchen (north-east of Berlin) at April 27, 1944 ,where it conducted tests with FuG 200 and FuG 216 radar systems.    At an unknown date, the plane was then transferred to Prague Kbely to the Letov company. There it was rebuilt. The KM+TB was to flight test the bomb bay of the Junkers Ju 287 jet bomber. This was a common procedure at Junkers. Thus, individual assemblies could have already completed flight testing even though the complete new aircraft had not yet flown. This accelerated the entry into service of a new aircraft.
After the war two czech individuals are inspecting the bomb bay of He 177 V38 at Prague Kbely. The conversation to Ju 287 standard was not completed. No bomb bay doors and their actuators are installed.
Heinkel He 177 V38, KM+TB seen from front. The long bomb bay is evident.
A standard He 177 seen from a similar angle, the bomb bay is divided into compartments.
Clipping from the Junkers Design Office Report, September 19, 1944, "Overview of Design and Development of the Ju 287 Jet Bomber." Three aircraft are mentioned here to conduct flight test with parts of the Ju 287 jet bomber: Ju 188 G-2 - original empennage of Ju 287 He 177 - bomb bay and bomb dropping device of Ju 287 He 177 - original landing gear of Ju 287
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Now that it has been determined which aircraft is shown on the photos, we analyze the conspiracy adherents' claim that a long and flat bomb bay could only have been intended to transport an atomic bomb.    Since it has not been possible since 1945 to find even a single proof of the existence of a Nazi atomic bomb, we have to rely here on the unproven claims. According to the belief of conspiracy adherents, even the two American atomic bombs of 1945 would have either originated entirely in Nazi Germany or used assemblies from Germany.    Let us see how these atomic bombs according to the state of the art in 1945 fit with the bomb bay of the Heinkel He 177 V38.
Bomb bay of the Ju 287 with a load of six bombs of 500 kg each. It is the same bomb bay installed in the He 177 V38 for testing. (This analysis and the following are based on a drawing by Günter Sengfelder).
The bomb bay of the Ju 287 / He 177 V38 with the ”Fat Man” nuclear bomb of Nagasaki. The bomb bay in no way matches the size of the bomb.
The bomb bay of the Ju 287 / He 177 V38 with the ”Little Boy” nuclear bomb of Hiroshima. The bay is much to long for this type of bomb and the doors would not be able to close.
The bomb bay of the Ju 287 / He 177 V38. Often a Soviet report from 1945 is quoted, which states the Nazis had planned an atomic bomb with the diameter of 130 cm. It could be a bomb based on the hybrid principle. Surely this bomb would have received an aerodynamic fairing. Obviously this bomb version also has nothing to do with the bomb bay mentioned here.
Now that the purpose of the Heinkel He 177 V38 conversion has been clarified and it should be obvious to everyone that the long and flat bomb bay has nothing to do with an atomic bomb, the discussion about a "Nazi atomic bomber" should actually be over.    However, I am sure that the conspiracy supporters are not impressed by facts. If facts and ideology do not fit together - the facts must be wrong!