Lynch, Tim . 2008. The Heli-Claw: A New Way To Transport Mulch for Erosion Control. 0851 2323. Missoula, MT: U.S. Department of Agriculture, Forest Service, Missoula Technology and Development Center. 6 p.
After wildland fires, mulch may be spread on the most severely burned areas to control erosion. Now, the mulch is loaded into a cargo net attached to a 100-foot longline underneath a helicopter. After each load of mulch is delivered, the helicopter has to hover while the empty net is removed from the longline and a full net is attached. The pilot and everyone under the helicopter are at risk while the helicopter is hovering near the ground. The Missoula Technology and Development Center has developed a device, known as the heli-claw, to carry loads of mulch. The heli-claw has hydraulically operated jaws that can carry up to a ton of mulch. The helicopter pilot has to hover for no longer than 10 seconds while picking up a load of mulch. In addition, crewmembers do not have to work underneath the hovering helicopter. A prototype of the heliclaw performed well during flight tests, but field tests using the heli-claw to deliver mulch for erosion control have not yet been conducted.
Keywords: BAER, biomass, erosion control, heli-claw, helicopter, mulch, safety at work, shredded wood, straw
These files are best for printing: (Help with PDF files)
View 300 dpi PDF (2532 kb)
If you experience problems using the 300 dpi PDF file, use the 72 dpi PDF files if they are listed below:
View 72 dpi PDF (779 kb)