The Forest Service has activated two Call When Needed large air tankers for a 90-day Mandatory Availability Period. This is a guaranteed 90-day contract, not the typical CWN arrangement when they can work a few days and then be sent home.
Tanker 104 (an Erickson Aero Tanker MD-87) is scheduled to start today, May 30, and Tanker 137 (a Coulson B-737) will start June 1. Their administrative bases will be Porterville and McCall, respectively.
After these are on board, there will be 15 large and very large federal air tankers on duty. For the United States. In 2002 there were 44 on exclusive use contracts.