What I think many people fail to recognize is that all aircraft vendors outsource quite a bit and have for a long time. Neither Boeing nor Airbus make the avionics. They buy them on spec from Honeywell or Smiths.
Back when I was a DS9 working in the ASL, we’d sometimes use a full software stack to try something out with pilots and airlines. But the result was a spec that went to Honeywell for implementation. And then when we got their output, we’d put those hardware boxes into our engineering sims and see if everything matched up.
Back when I was a DS9 working in the ASL, we’d sometimes use a full software stack to try something out with pilots and airlines. But the result was a spec that went to Honeywell for implementation. And then when we got their output, we’d put those hardware boxes into our engineering sims and see if everything matched up.