As fragile as trout are compared to YP, carp, some of the sunfishes, I've often wondered how they survive being dropped from a plane with absolutely no acclimation to their new surroundings. No water tempering, no gentle release.
But it works.
4Corners, when I got some rainbow trout stocked a few months ago, I was surprised to see them just dumped straight into the water without any acclimation. The stocker mentioned that as long as the water temp was okay, they do just fine.
Based on my experience, they are wonderful growers on feed, maybe the best I have. Wish they could live through summer!