My city's mayor was just boasting on how she'd gotten an approval for an airport runway of length "2100 m gross, 1900 m net length", and that this would be enough to connect the city - Haifa - to hubs all across Europe.
I'm not sure what she meant exactly, but I looked up some aircraft runway requirements, and found this, with no distinction between "gross" and "net" length. Now, some of the Boeing 737 models can fit the "net" length she mentioned, and so can Airbus A319's - but A320s or A321s fall right between the "net" and "gross" lengths.
So, my question is:
- Is there such a thing as "gross" vs "net" runway length? If so, what counts into the gross but not the net? Clear space between the tarmac and the perimeter fence maybe?
- Was the mayor making an empty boast or can the information about that runway be interpreted so that what she said is correct?