Tanker 40 taxiing to takeoff to begin its fire season, May 25, 2012 Published May 25, 2012 at 480 × 263 in Air tanker update Tanker 40 taxiing towards takeoff to begin its fire season, 5:55 p.m. MDT, May 25, 2012. As it left the Neptune hangar at Missoula, Neptune’s training P2V can be seen in the backround.