"After the departing.... line up"
A quick query regarding the phrase "After the departing.... line up".
The scenario is that the departing aircraft in the conditional part of the clearance was ahead of me at the same holding point, and received a clearance to line up. He did so, and is now on the runway, awaiting clearance to take off.
Assume that there is enough space on the runway for me to line up positioned behind the first aircraft. Also assume that I'm happy that there is no safety issue with lining up behind him (e.g. jet-blast or prop-wash as he applies take-off power).
Do you expect me to a) line up now, and position behind the other aircraft, or b) wait until the other aircraft begins his take-off run - which might be a little while if he hasn't received his take-off clearance yet - then line up?
It seems, from watching what others do, that the convention at my current home airport is different to my previous home airport, and I can't find any written reference.
Thanks!
FFF
------------