How They Build the Y-20B (Kunpeng): Inside China's Massive $160M Aircraft Factory

China’s Y-20B is more than a larger military cargo aircraft. Its four domestically developed WS-20 engines mark a major shift in how China builds and sustains strategic airlift. This documentary goes inside the full lifecycle of the Xi’an Y-20 Kunpeng, from digital engineering and large-airframe tooling to fuselage assembly, cargo-floor integration, landing-gear installation, engine mounting, ground testing, flight validation, and operational delivery. You’ll see why manufacturing a heavy transport aircraft requires far more than joining a large fuselage and four engines. The wing must carry propulsion and fuel loads, the cargo floor must withstand concentrated vehicle and pallet forces, the rear ramp must transfer weight safely, and every hydraulic, electrical, fuel, and control system must operate as one aircraft. The central engineering story is the transition from earlier foreign-origin engines to the larger WS-20-powered Y-20B. Chinese reporting presents the new engine as an important step toward greater range, payload performance, efficiency, and supply independence, although complete independently verifiable operational data remains limited. The video also places the Y-20B beside the Boeing C-17 Globemaster III and Airbus A400M—not to declare a winner, but to examine how payload, runway requirements, reliability, maintenance support, and fleet experience shape real strategic-airlift capability. Modus Assembly documents how major Chinese industrial and defense products are designed, manufactured, tested, and delivered. Subscribe for more factory-scale engineering documentaries. 0:00 The Y-20B Reveal 1:50 Digital Design, Tooling and Materials 4:48 Fuselage and Wing Assembly 7:08 Cargo Systems and Landing Gear 9:16 WS-20 Engine Integration 12:33 Ground and Flight Testing 14:12 Delivery and Strategic Airlift Our Strategic Production Process: We take pride in our "Human-AI Synergy" workflow, ensuring every video is a unique masterpiece. Original Scripting: Every narrative is independently researched and scripted by our team. We focus on high-retention storytelling and high-value insights to ensure 100% original content. Advanced Visual Synthesis: We utilize cutting-edge tools, including Google Veo and Grok AI, to generate and enhance high-fidelity visuals. This allows us to visualize complex concepts and environments with cinematic precision. Professional Post-Production: Every scene is manually curated and edited in CapCut. We apply professional color grading, anamorphic aesthetics, and atmospheric sound design to ensure a premium, high-retention experience. Monetization & AI Policy Compliance: This channel strictly follows YouTube’s transparency and original content guidelines. AI Disclosure: Visuals are created or enhanced using advanced AI (Veo/Grok). These are digitally synthesized representations produced for educational and informational purposes. No Reused Content: We do not use third-party footage or clips from other creators. Every sequence is an original creation generated specifically for our unique scripts. Human Creative Direction: Our videos involve significant human effort in creative direction, manual editing, and strategic structuring to meet YouTube’s original content standards. Connect With Us: For business inquiries, collaborations, or feedback, please reach out: Email: [[email protected]]