YF-23 (disambiguation)
YF-23 might refer to:
- Northrop YF-23, American single-seat, twin-engine stealth fighter aircraft technology demonstrator designed for the United States Air Force (USAF).
- YF-23 (rocket engine), the second stage vernier engine of the Feng Bao 1, Long March 2, Long March 3 and Long March 4 launch vehicles.
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