A video we embedded in an article on June 7 shows one of the DC-10 very large air tankers making a precision drop using what appeared to be a small fraction of it’s 11,600 gallon capacity, on what was described as a 7-acre fire below Pinal Peak near Globe, Arizona. It generated a fair amount of discussion in the comments, mostly positive, except for one from “Don” who called it “overkill”. “DiggerT” provided a thoughtful response to Don, and I also added my two cents in a comment.
We don’t know why the DC-10 was selected to drop on the fire near Pinal Peak. Maybe it had been dropping on another fire in the area, or perhaps it was the only air tanker available. At any rate, in the video the radio traffic from the lead or air attack plane indicated that he was extremely pleased with the results of the drop.
I am pasting below what I wrote in the comment because it includes a few details about the pricing structure for the seven next generation air tankers that we have not previously covered:
“Don, are you aware that the hourly flight rate for the DC-10 on this new exclusive use contract is by far lower than the other six aircraft that were selected for contracts? The nearest competitor is $2,054 per hour more expensive than the DC-10, and the DC-10 is a little more than half the hourly rate for Minden’s BAe-146.
But keep in mind the contract is complex, and the DC-10’s pricing structure, in order to compare apples to apples, is based on delivering 3,000 gallons, approximately the same as the other six aircraft — according to information I received from someone who is very familiar with the contracting process for next generation air tankers. There are additional specifics to cover the DC-10 dropping more than 3,000 gallons.
But as you can see in the bid details, the Total Cost Estimate for the first year, which apparently takes this into account, has the DC-10’s total cost approximately in the same ball park as the others, which are, in millions, $36.4, $36.4, $38.9, $39.5, and $41.3. The DC-10’s was $43.2. But keep in mind that the DC-10 delivers about three to four times more retardant than the maximum capacity of the other next gen air tankers , and six times more than Tanker 40, a BAe-146, if T40 is reloading at Silver City Airtanker Base on a 90 degree day.
And, I have to agree with DiggerT. If there is any potential for a wildland fire to become large it should be attacked with overwhelming force, rather than attempting to fire fire on the cheap. This can save money, property, and lives.
A year ago I wrote my “Prescription for keeping new fires from becoming megafires“:
Rapid initial attack with overwhelming force using both ground and air resources, arriving within the first 10 to 30 minutes when possible.”