Lovellette, Greg ; Suter, Ann . 2006. Ground Pattern Performance of the CDF S-2T Turbo Tracker Airtanker. 0657 2848. Missoula, MT: U.S. Department of Agriculture, Forest Service, Missoula Technology and Development Center. 8 p.
Describes the results of tests to determine the optimal ground pattern coverage of three fire-retarding materials (water, gum-thickened retardant, or water-enhancing gel) dropped from the California Department of Forestry S-2T Turbo Tracker airtanker flying at drop heights of 179 to 195 feet and airspeeds of 111 to 129 knots. A table shows the coverage of fire-retarding material needed for specific fuel types and fire behavior. Matched tables and graphs allow managers to estimate the drop height needed to produce the maximum line length at the desired coverage.
Keywords: chemicals, drop guides, retardants, water, water-enhanced gels, WFCS, wildfires, wildland fires
These files are best for printing: (Help with PDF files)
View 300 dpi PDF (2370 kb)
If you experience problems using the 300 dpi PDF file, use the 72 dpi PDF files if they are listed below:
View 72 dpi PDF (874 kb)