The Lockheed Corporation YF-12A is a proposed interceptor variation of the infamous SR-71. It is a twin-seater version of the A-12 Oxcart (In turn, the recon aircraft that would lead to the production of the twin-seating SR-71). However, it was eventually cancelled. It only appears in Airforce Delta Strike and features prominently in the mission Hyper Speed Rick.
This aircraft looks identical to the SR-71, unsurprisingly. It has the same incredibly large profile, humongous jet engines, and small wingspan and narrow front section.
It is the second fastest aircraft in the game, (Slightly beaten out by the F-108) but outside of that, stats are incredibly poor. It has decent Anti Air, but mobility is horrible, defense is trash, and it's only good for a niche role. If you want a dogfighting plane for Rick, this is NOT a plane for you (We recommend the Su-37, which you can unlock by this point anyways).
Compared to the F-108, this craft is superior in overall control (It rolls slightly better), and it has decent Stealth. Anti Air and Anti Ground is also superior. However, it has a worse special weapon (ML-AAMs are much less accurate than HM-AAMs), and lower armaments overall (70 standard missiles as opposed to the F-108's 150).
(Clockwise starting from top)
Anti Air Attack: High
Mobility: Very low
Defense: Low (1700 HP)
Anti Ground Attack: Low