What amazes me is that they even checked (or at least tried to check) what the pilots could see on their HUDs when the plane was in negative Gs. They tried to get Rockwell-Collins to emulate it and make a video recording of what happens when the pilots are displaced from their seats by the negative G-forces, but the company said it was impossible. SPOILER ALERT: One of the recommendations to Flydubai is to replace the HUDs.