Dropping fire retardants by helicopter: tests of three new helitanks

James B. Davis

Treesearch

Dropping fire retardants by helicopter: tests of three new helitanks

Informally Refereed

Authors:

James B. Davis

Year:

1963

Type:

Research Note

Station:

Pacific Southwest Research Station

Source:

Res. Note PSW-RN-027. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 16 p.

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Download (PDF 1.68 MB): https://research.fs.usda.gov/download/treesearch/56232.pdf

Abstract

Late model helicopters equipped with new helitanks and adequately supplied can accurately deliver as much fire retardant as most fixed-wing air tankers at a potentially lower cost. Viscous water dropped from helicopters clung to fuel surfaces and was concentrated in a narrower pattern than plain water.

Citation

Davis, James B. 1963. Dropping fire retardants by helicopter: tests of three new helitanks. Res. Note PSW-RN-027. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 16 p.