As a key to tunnelsmokecontrol, thecriticalvelocityrefers to aminimumverticalventilation velocity which can effectively control the smoke under the directionoffire source without reversing.
Meanwhile, in Tunis, the government charged that Libya's rocket-firing at Tunisia is a violation of its sovereignty and puts citizens and infrastructure at risk, even though Tripoli pledged several times not to fire in the directionof Tunisia, the foreign ministry source told the Tunisian News Agency.
This was actually quite enjoyable, and after a few more matches I actually had the ability to spray some fire in the general directionof opposing aircraft.