Tupolev designed a twin-engine bomber, the TB-1, which was considered one of the most advanced designs of the time
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Tupolev designed a twin-engine bomber, the TB-1, which was considered one of the most advanced designs of the time
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-17 from Wikipedia. The archived copy is preserved so this citation survives link rot.