Irish Roll
No, we don't send them out - there're are only three pitch and power settings to remember for each type.
The maths is what I remember as 'O' level, bit of long division etc
The axe is lowered gently on rare occasions with the advice that the time is not yet right - and that time is needed to get your flying up to speed - because a jet conversion course is not the place for doing that...
SKB