Task tunnel vision. There was an example of that a few years ago, showing people playing basketball and you are given the task to count the number of times the ball is passed. Then at the end, it asks you if you saw the guy in the gorilla suit. Watch it again, and sure enough, he walks through the video clear as day, but if you focus on watching the basketball and who it gets passed to, you will never 'see' the gorilla suit. The Human brain is good at editing everything we sense and it eliminates anything it thinks is irrelevant.
I parked a pickup truck inside a Chinook once. it is a tight fit and a Hummer is to wide to fit inside, but sling loading them was common.
We often traded favors for moving things out to field problems... like moving these very top heavy engineering vehicles for the combat engineers out to the field in trade for them digging our fighting positions out for us. We were going anyway, the extra tonnage was not a big deal, but meant we did not spend the first day in the field digging and filling sandbags...
Never drove one of those trucks, not even one of the 'new' 5 tons (new back then) that had a central inflation system. Did drive some old CUTVs, jeeps, cars, a Deuce and a half, and flew around inside Chinooks.
When we really loaded up the bird, would have to do a rolling take off to get into the air, then once up, could dangle more weight on a sling. Usually that was either an artillery haul or a fat cow mission....
Of course, WAY of topic now...
