Sustainable-f

Helicopter Logging

Timber harvesting took a new dimension in Sabah when helicopter logging was introduced for the first time in June, 2004. It marked a new era in the history of the logging industry. Helicopter logging is carried out in steep terrain to minimise damage to the residual stands.

Heli-Logging, or Helicopter Logging, is a method of logging that uses helicopters to remove cut trees from forests by lifting them on cables attached to a helicopter. Helicopter logging is often used in inaccessible areas of forests. The use of helicopters reduces the level of infrastructure required to log in a specific location, the method also helps to reduce the environmental impact of logging. It also can increase the productivity in these remote areas.


airplaneAircraft Used
Sikorsky S-64 Skycrane is used for this logging operation. Originally a Sikorsky Aircraft product, the type certificate and manufacturing rights were purchased from them by Erickson Air-Crane in 1992.

Since that time, Erickson Air-Crane has become the manufacturer and world's largest operator of S-64 Aircranes and has made over 1,350 changes to the airframe, instrumentation, and payload capabilities of the helicopter.


gearsAircraft Specification
General Information
Characteristics Details
Crew 3 (pilot, co-pilot), plus one engineer or rear-facing observer
Capacity up to 5 total persons
Payload 20,000 lb (9,072 kg)
Length 70 ft 3 in (21.41 m (fuselage))
Rotor Diameter 72 ft 0 in (21.95 m)
Height 18 ft 7 in (5.67 m)
Disc Area 4070 ft² (378.1 m²)
EmptyWeight 19,234 lb (8,724 kg)
Max. Takeoff weight 42,000 lb (19,050 kg)
Powerplant 2 × Pratt & Whitney JFTD12-4A (T73-P-1) turboshaft engines, 4,500 shp (3,555 kW) each
Performance
Maximum Speed 109 knots (126 mph, 203 km/h)
Cruise Speed 91 knots (105 mph, 169 km/h)
Range 200 nmi (230 mi, 370 km) max fuel and reserves
Rate of Climb 1,330 ft/min (6.75 m/s)
Data from The International Directory of Civil Aircraft. Frawley, Gerard: The International Directiory of Civil Aircraft, 2003–2004, page 195. Aerospace Publications Pty Ltd, 2003. ISBN 1-875671-58-7

Sikorsky S 64 Schematics
Drawing of Sikorsky S 64 by Jetijones


videoVideo of Sikorsky S-64 Skycrane (Courtesy of YouTube)