Electrothermal Drill
This drill melts an annulus around the core. It supplements the 4-Inch drills and can be substituted for the 4-Inch sonde, using the same winching system, for use in ice warmer than about minus 10° C. It takes a 3-inch core. It is particularly useful in ice close to the pressure melting point, where electromechanical drills suffer risk from melting and refreezing of the ice. Much simpler than the electromechnical drills, the electrothermal drill has required little maintenance, yet has performed well recently in British Columbia and Alaska.
| Type: | Coring |
| Number in Inventory: | 1 |
| Max. Depth Possible: | 200 meters |
| Core Diameter: | 86 mm |
| IDDO Driller Required?: | yes |
| Shipping Weight: | 1200 lbs |
| Comments: | Shipping weight includes generator and 100 meter winch sled; complete operating weight is 800 lbs |
| Subsystem | # in Inventory | Description | Weight | Cube |
| Sonde | 1 | Thermal coring drill | ||
| Winch | Uses 4-Inch drill system winches |
