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Like Britain, the Soviet Union did not produce much aluminum. If you want large scale production the aircraft should be made of wood and the engine should be a cast iron V12.
Six He 100s were exported to the Soviet Union and three were exported to Japan. Although any Japanese aircraft that survived the war would have been destroyed by the Allies, there is a possibility that parts of or even a complete He 100 may exist somewhere in storage in Russia.[citation needed] It is also possible the Russians made plans or blueprints of their He 100s while the design was being studied.[dubious – discuss]
The Soviets were particularly interested in the surface cooling system, having built the experimental Ilyushin I-21 with evaporative cooling, and in order to gain experience with it they purchased the six surviving prototypes (V1, V2, V4, V5, V6 and V7).[2] After arriving in the USSR they were passed onto the TsAGI institute for study; there they were analyzed with He 100 features influencing a number of Soviet designs, notably the LaGG-3 and MiG-1.[citation needed] Although the surface cooling system wasn't copied, the addition of larger Soviet engines made up for the difference and the LaGG-3 was a reasonably good performer. It's perhaps ironic that German aircraft would later be shot down by German inspired aircraft.
It just sounds like a variation on the myth of the Zero being a copy of another aircraft.
The Soviets thought highly of the He-100. That might make a good starting point for a new Soviet fighter design.
I don't know a lot about LaGG and MiG design history. Were they influenced by the He-100 as Wikipedia suggests?
Interesting reading.
Do you have the name of the book?
I don't think so. When Yakovlev and other engineers were shown the type in Germany it was not rated very highly. The flying characteristics were good but not the "exploitation"* capability.
* This means how the aircraft will perform when operating at the front from air bases.