Download or read book Balloon Logging Systems written by Goodyear Aerospace Corporation and published by . This book was released on 1964 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This study for the Forest Service of the US Department of Agriculture by the Goodyear Aerospace Corporation, establishes the mechanical feasibility of employing a lifting balloon secured, in effect, to a log(s) to be yarded by a cable system immediately adjacent. As a result, less of the log weight rests on the ground, the front end is elevated, and less effort is required to drag the load. Use of a balloon permits downhill log yarding over considerable distances without the necessity of erecting other means to elevate log ends. This is a parametric study that analyzes the effects of various balloon types (spherical, blimp shaped, and VEE BALLOON), sizes, windspeeds, terrain, grades, temperatures, altitudes, and balloon angles and effects of butt rigging heights on net log lift, cable loads, and power requirement. The study is concerned with only the engineering aspects of balloon logging and does not review the economics of the concept.

Download or read book Balloon Logging Systems written by Goodyear Aerospace Corporation and published by . This book was released on 1964 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study for the Forest Service of the US Department of Agriculture by the Goodyear Aerospace Corporation, establishes the mechanical feasibility of employing a lifting balloon secured, in effect, to a log(s) to be yarded by a cable system immediately adjacent. As a result, less of the log weight rests on the ground, the front end is elevated, and less effort is required to drag the load. Use of a balloon permits downhill log yarding over considerable distances without the necessity of erecting other means to elevate log ends. This is a parametric study that analyzes the effects of various balloon types (spherical, blimp shaped, and VEE BALLOON), sizes, windspeeds, terrain, grades, temperatures, altitudes, and balloon angles and effects of butt rigging heights on net log lift, cable loads, and power requirement. The study is concerned with only the engineering aspects of balloon logging and does not review the economics of the concept.

Download or read book Logging Systems Guide written by and published by . This book was released on 1978 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Balloon Logging in the Idaho Batholith written by William S. Hartsog and published by . This book was released on 1978 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Statistical Analysis of Balloon Logging Time and Motion Data written by William S. Hartsog and published by . This book was released on 1979 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cable Logging Systems written by Donald D. Studier and published by . This book was released on 1976 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Log exporting Problems written by United States. Congress. Senate. Select Committee on Small Business. Subcommittee on Retailing, Distribution, and Marketing Practices and published by . This book was released on 1968 with total page 1718 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considers problems arising from increased log exports from the Pacific Northwest to Japan, including increased lumber prices and unemployment. Factual record of the hearing is intended to assist State Dept in negotiating reductions of the log trade with Japan. Continuation of hearing examining need to increase the harvesting of trees on Federal lands. Focuses on requests to increase the allowable cut for domestic use and exports to Japan.

Download or read book Log exporting Problems written by United States. Congress. Senate. Select Committee on Small Business and published by . This book was released on 1968 with total page 1722 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Log exporting Problems January 18 and 19 1968 written by United States. Congress. Senate. Select Committee on Small Business. Subcommittee on Retailing, Distribution, and Marketing Practices and published by . This book was released on 1968 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considers problems arising from increased log exports from the Pacific Northwest to Japan, including increased lumber prices and unemployment. Factual record of the hearing is intended to assist State Dept in negotiating reductions of the log trade with Japan. Continuation of hearing examining need to increase the harvesting of trees on Federal lands. Focuses on requests to increase the allowable cut for domestic use and exports to Japan.

Download or read book Estimating Production Rates and Operating Costs of Timber Harvesting Equipment in the Northern Rockies written by Rulon B. Gardner and published by . This book was released on 1982 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA Forest Service General Technical Report PNW written by and published by . This book was released on 1977 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating Production Rates and Operating Costs of Timber Harvesting Equipment in the Northern Rockies written by Charles W. George and published by . This book was released on 1981 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA Forest Service Research Paper INT written by and published by . This book was released on 1978 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hearings Reports and Prints of the Senate Select Committee on Small Business written by United States. Congress. Senate. Select Committee on Small Business and published by . This book was released on 1968 with total page 1708 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hearings written by United States. Congress Senate and published by . This book was released on 1968 with total page 1698 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abstracts of Recent Published Material on Soil and Water Conservation written by and published by . This book was released on with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book DEPARTMENT OF THE INTERIOR AND RELATED AGENCIES APPROPRIATIONS FOR FISCAL YEAR 1967 written by and published by . This book was released on 1966 with total page 1206 pages. Available in PDF, EPUB and Kindle. Book excerpt: