. >> reporter: chief scott upton flies in calfire's initial attack. the s2t holds up to 1,200- gallons. while the dc10 holds 10,000- gallons of retardant. >> any time you lose any capability you're going to lose a certain amount of effectiveness. >> reporter: but upton and others in calfire says the dc10 was never as vital as a smaller fleet. a fleet that will continue to fly this wildfire season. >> the most important thing for us is maintaining our initial attack capabilities. >> there's some limitations with the dc10 on types of terrain and mov era bility in canyons. >> reporter: if the air tanker is out of state battling another fire and calfire calls for it, calfire will have to wait. mike mibach, ktvu news. >>> a san francisco superior court judge temporarily halted a freeway project today. caltrans wants to widen 101 through richardson state park. environmentalists say that will damage the roots of near by redwood trees. we talked with a caltrans spokesperson who says we are disappointed but we continue to stand by the redwood drove improvement