I'm looking for a certain anime, and I'd like to ask for your guys' help. The anime aired on Anime Networks VOD service sometime around 2011-2013. I think it was a show about planes and aviation, that took place during World War 2. It had clones, an aviation school, an aviation museum, and air races. I remember it had a scene that took place at a graveyard, with a main character mourning their mother's death while his siblings schemed against him for inheritance money. I don't remember much from the opening, but part of it took place in a hangar. I know i'm not giving you guys much to work with, but if you guys figure it out, I'll be grateful. Pic unrelated.