Lou Albershardt operates the Badger-Eclipse drill during the Norwegian-U.S. traverse of East Antarctica. —Credit: Stein Tronstad, Norwegian Polar Institute
The Badger-Eclipse Drills are modified Eclipse Drills manufactured by Icefield Instruments, Inc. The drill is electromechanical and takes an 81 mm (3.25-inch) diameter core to depths of approximately 400 meters. The drill system is transportable by small aircraft or helicopter.
The Badger-Eclipse drill operates on the same general principles as the 4-Inch drill but it is more sophisticated. Its control system allows improved control of depth, cutter and winching speed, and direction. There are displays of motor speed, current, and voltage as well as centimeter-accuracy drill depth, lockouts to prevent motor damage due to current pulses, and magnetic brakes that engage automatically if the power should fail.
|Number in Inventory:||3|
|Max. Depth Possible:||300+ meters|
|Core Diameter:||81 mm|
|IDDO Driller Required?:||yes|
|Shipping Weight:||2000 lbs|
|Comments:||Complete unit operating ~800 lbs. Heaviest component is the winch (on sled) 400 lbs. Winch control box 250 lbs.|
|Subsystem||# in Inventory||Description||Weight||Cube|
|Motor Section||2||143 lbs|
|Core Barrel||2||160 lbs / 175 lbs|
|Level Wind||132 lbs|
|Frame & Mast||216 lbs|
|Motor Controllers||2||112 lbs / 115 lbs|
|Tools & Spares||143 lbs|