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• W595612809 abstract "In this paper, the results of an evaluation concerning the possible applications of the helicopter in North West Italian forest and its hourly cost analysis are described. Furthermore, the results of an operating and economical comparison of wood transport with helicopter and cable crane are reported. To highlight the possible works that can be done by helicopter in the forestry sector the ship's log of an Italian helicopter's company with 30 helicopters have been considered. In detail, for this analysis, a period of activity of 5 years (2005 - 2010) for a total of 12.000 fly hours, has been considered. The economics evaluation has been carry out considering an helicopter of middle size with a nominal power of 624 kW, a useful load of 1076 kg and a cruising speed of 226 km h-1. The logging comparison between helicopter and cable crane has been made in a forestry of Picea Abies with a average slope of 40% located at an altitude ranking from 1.150 to 1.450 m. The average logs diameter was considered of about 400 mm with a total volume harvested of 750 m3. A cable crane of a length of 700 m and a nominal power of 104 kW with a motorized carriage has been considered for the comparison. The study has pointed out that the helicopter in Italy is at present mostly employed for the barycentre hook transport (80%), but only 1% of barycentric hook transport is used for wood trasport. The helicopeter is mostly used for the transport of the material for building of mountain refuges and of the avalache shelters. The reason of this limited used in logging is manly related to its very high hourly cost (1.200 €/h). The logging comparison has underline a working time required by cable crane of 29 days, while with the use of the helicopter are necessary only 5 days. Forthermore, the manpower required for logging using the cable crane represent the 42% of the total manpower necessary for wood harvester, while using the helicopter its represent only 5% of the total. The use of helicopter seem, to be convenient only in situations where the priority is the quality of the work and the forestry safeguard." @default.
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• W595612809 date "2011-01-01" @default.
• W595612809 modified "2023-09-24" @default.
• W595612809 title "Forestry use of the helicopter" @default.
• W595612809 hasPublicationYear "2011" @default.
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