Bloggs comes to a halt behind another aircraft and calls, "ready in turn". Why? Does s/he think the other aircraft is going to be told to get outa the way? Does Bloggs believe s/he's going to be cleared for takeoff and then have to taxi around the aircraft in front????
It's a bit like becoming ready for takeoff whilst backtracking the runway. Our erstwhile Bloggs calls, "ready on line up".
How does
the man in the tower interpret this? Does he think,
- Bloggs must think I'm stupid and that I'm gonna clear him for takeoff in the wrong direction, with only 200m of runway left.
- Hmm, is he ready now? Will he be ready on line up, or does he just expect to be ready on line up??
Surely when ready, one calls ready, then
the man in the tower knows that Bloggs is ready and can fit him into the sequence.