Been wanting to add this custom aircraft for awhile now.
Usual caveats apply: no working cockpit, not to scale, not correct speeds or flight dynamics (but feel free to tweak engine.cfg and flight_dynamics.cfg yourself), not correct sounds … but it’s the SR-71.
How to install:
Extract to the game’s “Community” folder. Ensure your extracted folder doesn’t have another folder (move it up if it does)
And look for the aircraft in Aircraft Selection screen after a restart.