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A rocket net is a type of animal trap used to trap a large number of live animals, usually birds, but they also have been used to catch large animals such as various species of deer. Rocket nets, cannon nets, and other net launching devices are built upon similar principles have been used since the 1950s (Dill and Thornsberry 1950, Hawkins et al. 1968, Grubb 1988 and 1991).〔Dill, H. S., and W. H. Thornsberry. 1950. A cannon-projected net trap for capturing waterfowl. Journal of Wildlife Management 14:132-137.〕〔Grubb, Teryl G. 1988. A portable rocket-net system for capturing wildlife. Research Note RM-484. Fort Collins, co: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station.〕〔Grubb, T. G. 1991. Modifications of the portable rocket-net capture system to improve performance. USDA Forest Service Rocky Mountain Forest and Range Experiment Station. Research Note RM-502.〕〔Hawkins, R. E., L. D. Martoglio, and G. G. Montgomery. 1968. Cannon-netting deer. Journal of Wildlife Management 32:191-195.〕 Rocket nets, as well as the very similar cannon nets, are used in conservation programs where a large number of live animals need to be captured for analysis, veterinary care or relocation. ==Materials== The Rocket Net consists of an accordion folded rectangular net with one edge attached to the ground by short ropes or shock cords. The net can be placed directly on the ground in a line or can be folded and placed in a specially designed box (Grubb 1988). Nets specifically designed for rocket nets can be purchased from several wildlife supply and net manufacturers. The rockets are constructed from heavy gauge metal pipes with caps threaded and welded on one end with a removable cap on the opposite end that contains ports for the expanding gasses to escape. The rocket charges are made from black powder and an electric match enclosed that is used to ignite M6 Howitzer propellant. All 3 components are enclosed in a larger plastic bag with shunted leg wires extending out of the bag. Currently the primary manufacturer of rockets for rocket nets is WinnStar in Illinois. In addition to the rocket net, other specialty equipment is necessary for the safe firing and storage of rocket nets and their charges. A blasting galvanometer, capacitor discharge machine, and electrical blasting line are recommended for the safe use of this equipment. In addition, an IME-22 container is necessary for the safe transportation of charges and an explosives magazine is required for long-term storage. Transportation and storage of the charges are regulated by the US Department of Transportation; Department of Alcohol, Tobacco, Firearms and Explosives; and by other state and local agencies (ATF: Explosives Law and Regulations, ATF P 5400.7 and 29 CFR, Part 1910.109 and IME Safety Library Publication Numbers 1,3,12, 22, and 14).〔U.S. Department of Transportation, Code of Federal Regulations, Title 49.〕〔Institute of Makers of Explosives Safety Library Publication No. 22, Recommendations for the Safe Transportation of Detonators in a Vehicle with Certain Other Explosive Materials. 16pp.〕〔Federal Explosives Law and Regulations. Department of Justice, Bureau of Alcohol, Tobacco, Firearms and Explosives. ATF P 5400.7.〕 The US Fish and Wildlife Service and State Wildlife Agencies regulate their use to capture birds and other wildlife. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Rocket net」の詳細全文を読む スポンサード リンク
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