Mach Marshall- otherwise well known as “Big Dark”
He is my Sr-71 Blackbird oc!! (Albeit he’s frickin ginormous for his model) He has like 87 mental illnesses
I’ll yap about his backstory in detail another time but here’s something brief:
He enlisted as a Spyplane during the height of the Cold War (50s/60s) and set two records: World’s Fastest Plane, World’s First Sonic Boom. He was quite famous for all his accomplishments. As aircraft improved and modernized, Big Dark got jealous and paranoid that he would be forgotten. He tried to gain attention by doing a dangerous unauthorized flight- heavily damaging his systems and titanium plating. Clearly ill and grieving, they did what any logic thinker did in the late 60s- “fix his mind” by removing his critical avionic systems- basically he got lobotomized and was forced to retire very early. The “maintenance” left him extremely irritable and in a manic state. As well, the damage along his body wasn’t repairable due to its material and left him grounded in chronic pain. He homed himself in a flight museum, living in a supercooled hangar set at freezing temperatures to numb his physical pain. He hates everything and doesn’t like anyone except the custodian that helps take care of him