Likely Outcome
The B-21 is not intended to engage in air-to-air combat and would rely on stealth to avoid detection and engagement. The J-20, as a fighter, would dominate in a direct engagement if it can locate and intercept the B-21. However, the B-21’s role as a strategic bomber is to neutralize threats like the J-20 by striking at its bases, infrastructure, or supporting systems, not by engaging the aircraft directly.
This makes their "fight" an unlikely and situational event, heavily dependent on broader strategic and operational contexts.
Potential Engagement Scenarios
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Detection and Avoidance:
- The B-21 is designed to penetrate airspace without being detected. If it remains undetected by the J-20’s sensors, there’s no "fight"—the B-21 achieves its mission unchallenged.
- If detected, the B-21 will rely on its stealth and electronic warfare measures to evade interception.
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Direct Engagement:
- The J-20 would have the upper hand in a direct confrontation because it is built for air-to-air combat. However, the B-21 would avoid this scenario at all costs.
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Support Environment:
- In real-world conflicts, the B-21 would operate with escort aircraft, such as the F-22 or F-35, and other assets providing situational awareness and defense.
- The J-20 would also have support from other fighter jets, ground-based radar systems, and missile batteries.
