Jordan, Cammie . 2000. Ground Pattern Performance of the Airspray Electra L-188 With Aero Union Constant Flow Tank. 0057 2851. Missoula, MT: U.S. Department of Agriculture, Forest Service, National Technology and Development Program. 6 p.
Describes the results of tests to determine the optimal ground pattern coverage of gum-thickened retardant and water dropped from the Airspray Electra L-188 with Aero Union constant flow tank. Graphs with contour lines at 0.5, 1, 2, 3, 4, 6, 8, and 10 gallons per 100 square feet show the drop pattern characteristics for the Airspray Electra L-188 with Aero Union constant flow tank flying at drop heights of 133 to 229 feet and airspeeds of 111 to 144 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 flow rate needed to produce the maximum length of line at the desired coverage when dropping gum-thickened retardants or water.
Keywords: chemicals, drop guides, WFCS, wildfire
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