I recently discovered that there wasn’t a rule for spacing between aircraft while taxiing, as more and more airports start implementing more sophisticated surface surveillance systems (Adavanced Surface Movement Guidance and Control Systems or A-SMGCS.
But I wanted to know what are your safe follow distances while taxiing?
Not sure if there is anything specific for taxiing aircraft following another, but at runway holding points where similar types are queuing pilots tend to use a gap similar in length size to the types they are flying. In the case of B737 size behind a heavy then gap seems to be increased to the size of the heavy. Presumably this to minimise risk of jet blast by preceding aircraft when breakway power is used causing FOD issues to the following aircraft.(I know this doesn’t apply to IF, but its a good bit of information)
The problem I have is this: pilots that can’t use common sense and maintain a reasonable distance are also not good pilots all around. So what they do? They change to tower frequency way in advance. So there I sit, looking from the tower at the situation and unable to give the gentleman / lady the “maintain safe distance from aircraft ahead”. That requires a “contact ground at…” then sending the distance warning. I don’t have time for that when airport is busy. Would love to see violations added for that.