2019年5月2日 · The two YA-9 prototypes were subsequently relegated to NASA for continued flight testing before being retired. When retired, the YA-9s' custom-built engines were removed and were later mated to a C-8 Buffalo airframe as part of the NASA-Boeing joint Quiet Short-haul Research Aircraft (QSRA) study into a quiet short-haul commercial aircraft.

2016年3月12日 · 107 votes, 19 comments. 164K subscribers in the MilitaryGfys community. *MilitaryGfys* is a place for sharing military moments from around the world…

2024年3月22日 · The Northrop YA-9 was a prototype attack aircraft developed for the United States Air Force A-X program. The YA-9 was passed over in preference for the Fairchild Republic YA-10 that entered production as the A-10 Thunderbolt II.

2020年1月8日 · YA-9A in 1972 - the unsuccessful candidate for A-10's job; some say it was also inspiration behind Su-25 (I doubt it)

2018年12月27日 · YA-9 was earlier so probably inspired the Su-25, Nortrop faced some pretty harsh lawsuits IIRC regarding unlawful technology transfer in recent (?) years. Also the Su-27 air-frame looks similar to early F-X designs.

2017年9月8日 · It's predecessor in the CAS role was the ; the YA-9 actually looks like a Skyraider updated with jet engines and armor. That's not a bad basis for the design, but it was just incremental improvement on a known design basis. The A-10 really was a bottom-to-top new design intended to maximize survivability in the CAS role.

2016年3月12日 · The YA-9 could deploy the rudder one direction but balance the yaw with the split aileron going the other way - so the rudder's thrust moved the airplane laterally without turning or yaw-ing.

2019年1月21日 · Here's some cool footage of the testing, also includes footage of the YA-10 which later became our beloved hog. During testing, both planes were fitted with the M61 vulcan because the GAU-8 was not ready yet. Reply reply samman129 • Looks like an a10 frogfoot and intruder all in one Reply reply skatecrimes •

2022年12月14日 · Yea, so best evidence we have is the dates the programs started, which puts the Su-25 1-2 years ahead, and the YA-9 as either parallel evolution or “inspiration.” I always wonder why people never consider parallel evolution…. You try to make a good stealth fighter, bomber, helicopter, attack jet, there is only so many types of platforms that work very well. The A-10 was basically ...

This. 9/10 of the charm of the A-10 is the looks. The other 1/10 is the BRRRRRRRRRTTTTTTT. I could not give less cares about actual performance in any situations that aren’t ideal for it. 3 more replies More replies More replies x888xa • Oh yeah, YA-9 …