![YF-12A in Flight Undergoing 'Coldwall' Heat Transfer Experiment](https://www.nasa.gov/wp-content/uploads/2023/03/404052main_ECN-4777_full_full.jpg)
YF-12A in Flight Undergoing ‘Coldwall’ Heat Transfer Experiment
The YF-12C was the second production SR-71A (61-7951), modified with YF-12A inlets and engines, and given a bogus tail number (06937).
- X
https://www.nasa.gov/image-detail/yf-12a-flight-undergoing-coldwall-heat-transfer-experiment/
Size1041x718px