I am curious to know if there are any specific guidelines during the taxi in/out on following other aircraft. Is there a certain distance to stay back and would the following distance be greater behind smaller (or larger) aircraft?
I was watching aircraft traffic near my local airport and saw a pretty good queue on the taxiway and it occured to me that nowhere have I read about the spacing distance on the ground. I have also heard that some aircraft don't start up all of their engines after the pushback but may do so just before take-off in the queue. Would this also require the aircraft behind, say the 747, starting two of their engines while at the hold-short line to be further back (and how would the pilot know the aircraft up front will be starting an engine or two?
Just curious as I have not seen this mentioned anywhere.