For a decade or two CAL FIRE and U.S. Forest Service aviation managers been talking off and on with officials at the Castle Airport (MER), 8 miles northwest of Merced, California, about using it as an air tanker base. As a former Air Force base with an 11,802-foot runway, and its location in central California near the Sierra Nevada Mountains, it could be a valuable resource for any fire aviation asset, but especially for Very Large Air Tankers like the DC-10 or 747.
Finally, prompted in part by the nearby Rim Fire, 40 miles from the airport, the U.S. Forest Service recently signed an agreement with Merced County to allow the airport to be used as an air tanker base. Tuesday of this week both DC-10 air tankers began using it to reload with retardant, making the round trip to and from the Rim Fire every 30 to 40 minutes, dropping 11,600 gallons with every trip.
According to the Modesto Bee:
Under the agreement, Merced County will charge the Forest Service through a series of fees: $225 per month for the 5,200-square-foot building lease, $450 per day for the 551,600-square-foot ramp and 50 cents per 1,000 pounds a plane weighs upon landing, according to county staff.
With a DC-10 air tanker weighing about 368,000 pounds, it will cost around $184 for each landing. The fee for landing a 6,505-pound single-engine Air Tractor AT-802 with an 820-gallon retardant capacity would be about $3.
For now, at least, the Tanker Base will be on call when needed status, staffed only if there is a specific need.
The video below has information about this new use for the Castle Airport.
Thanks go out to Johnny