I had kind of assumed they were all zero-zero now, especially on something relatively new like the Texan, and especially a trainer.

But what do I know, maybe the research said it wasn’t critical.

Weird to have this happen, that stuff is safety’d seven ways to Sunday, and stays disarmed until ready to go.

Edit: looks like it’s a zero-zero seat (Texan II first flew in 1998).

https://martin-baker.com/ejection-seats/mk16-us16la/

Edit 2: According to my aircraft anorak, these seats are deactivated until the plane is in the air using a Weight-off-Wheels switch.