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Logging and Harvesting training was offered in three phases. The first, a three-week short course on Logging Systems, involved the plantation harvesting of eucalyptus and albizia in Hakalau on the island of Hawai’i. Safety equipment preparation, precision falling, low-impact log removal, cutting logs to length, minimizing field damage, locating skid trails and landings, residual timber stands, and environment and forest health were among the topics covered. The coordinating instructor was Professor Randy Senock of the University of Hawai’i at Hilo; instructor specialists from the U.S.D.A. Forest Service also taught individual modules.

This course was cosponsored by the following organizations 

  • Hawai’i Community College Office of Continuing Education and Training  
  • Mauna Kea Agribusiness (a subsidiary of C. Brewer, Ltd.)  
  • The Kekua Foundation  
  • State of Hawai’i Department of Labor and Industrial Relations, Workforce Development Division  
  • Timberjack  
  • U.H.H. College of Agriculture, Forestry and Natural Resource Management  
  • USDA Forest Service

 Logging Systems Short Course Schedule

  1. Introduction to Logging Systems & Transportation/Logging Planning Overview  
  2. Log Trucks, Roads, Drainage Structures, Culvert & Bridge Design  
  3. Road Location & Evaluation of Existing Roads (Part I)  
  4. Road Location & Evaluation of Existing Roads (Part II); Felling Systems (Part I)  
  5. Felling Systems (Part II)  
  6. Introduction to Cable Logging Systems, Cable Landings, Cable Operations
  7. Guylines/Anchors/Lift Trees/Wire Rope  
  8. Field and Map Profiles/Payload Analysis Concepts (Part I)  
  9. Field and Map Profiles/Payload Analysis Concepts (Part II); Cable Unit Design (Part I)  
  10. Cable Unit Design (Part II)  
  11. Introduction to Helicopter Logging (Part I)  
  12. Introduction to Helicopter Logging (Part II)  
  13. Introduction to Ground-based Logging Systems (Part I)  
  14. Introduction to Ground-based Logging Systems (Part II)  
  15. Tract Design/Field Layout Guides/Unit Design

The second phase of the Logging and Harvesting class focused on mechanical harvesting and was instructed by Tom Legg , a specialist in Product Applications with Timberjack (, who has 25 years of experience in the logging industry. The class covered a brief history of forestry since World War II and current harvesting methods. A hands-on demonstration with a Timberjack shovel logger followed.     Joseph Dalrymple was the lead instructor for the third phase, “Eucalyptus Timber Harvesting & Processing for Building Construction: A Five Day Workshop.” The daily class format consisted of the typical construction activities associated with erecting a building-blueprint analysis, material selection, fabrication, and installation. Techniques of using Eucalyptus to construct a log cabin were demonstrated. Participants also had the opportunity to mill wood with a two-way band saw.



Randy Senock
UHH College of Agriculture, Forestry and Natural Resource Management
200 W. Kawili Street Hilo, HI 96720
phone 808-974-7676
fax 808-974-7674

Tom Legg Timberjack, Inc.
6215 Fulton Industrial Boulevard Atlanta, GA 30336

Joseph Dalrymple
P.O. Box 438 Pahoa, HI 96778
phone 808-965-1454

Course materials included

Best Management Practices for Maintaining Water Quality in Hawaii (PDF)
State of Hawaii
Department of Land and Natural Resources
Division of Forestry and Wildlife

1151 Punchbowl Street #325
Honolulu, HI 96813
phone: 808-586-0166

Chainsaw Felling Fatal Accidents
“Falling and Bucking Safety Guide”
Oregon Occupational Safety and Health Division
Standards and Technical Resources Section
21 Labor and Industries Building Salem, OR 97310
phone: 503-378-3272, or 1-800-922-2689

Ground-Based Systems

Logging Safety

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