Also true but the term 'system logic' seems to create a discontinuity in my understanding of a system.
I'd rather hear the number followed by "nice to know" then not hear the number.
I'd rather hear the system regulates between 30 and 60 then 'the system logic keeps it in the green'
That's just the way I learn lol.
From what I remember about the accident report on the 777 they had dead zones in the tank where waxy deposits accumulated.
I don't know if that was fixed through stirrers or flow deflectors in the tank.
I do recall they had unusually low temps over China. -67C or somewhere about there.
In the CJ2 I've seen ISA -13 in the lower 400's.