Accession Number : ADP004805

Title :   The PICO Intermediate Drill System,

Corporate Author : NEBRASKA UNIV LINCOLN

Personal Author(s) : Litwak,J. ; Kersten,L. ; Kuivinen,K.

Report Date : DEC 1984

Pagination or Media Count : 4

Abstract : The PICO(Polar Ice Coring Office) Intermediate drill is an electromagnetical drilling system designed for continuous coring in firn and ice to a maximum depth of 600 m in an open hole. The drill collects 10.2 cm diameter core in runs of 70-150 cm length. A new cutting head includes three bits and core-catching dogs. The surface components include a Lebus winch with grooved drum containing 700 m of seven-conductor electromechanical cable, a dual tower device, a 2.5 kW motor for high-speed raising and lowering of the drill, a 1.25 kW motor for control of penetration and core break, and a control panel. The winch platform, operators and core processing station can be accommodated inside a modified Hansen WeatherPort shelter. A 30 kW, 208V Ac turbocharged diesel generator powers the winch and drill. The total weight of this system is 6600 kg.

Descriptors :   *DRILLING MACHINES, ICE, CORES, ELECTROMECHANICAL DEVICES, DRILLS, POLAR REGIONS, SHELTERS, SNOW

Distribution Statement : APPROVED FOR PUBLIC RELEASE