Defense News reported that delivery dates for the next jet trainer aircraft in the Air Force’s fleet are expected to be delayed. The T-7A Red Hawk apparently has ejection seat problems.

While it’s true that Boeing, with appropriate prodding from the US Air Force, was able to improve the escape system of the T-7A that’s set to retire the T-38 Talon jet trainer, the technology isn’t perfect yet.

But perhaps looking for perfection in design and engineering is the wrong way to go. So, in the wake of the Air Force procuring new Boeing trainers with less-than-perfect escape systems, let’s take a tour down memory lane and look at some of the worst jet trainer accidents, not to relive the pain but to remind us that more than the speed in production, ensuring these jets have superior ejection seats is a prime concern.