http://www.ssec.wisc.edu/icds/equipment/development.htmlHowdy, I've been on two drilling teams so far, Shothole in 2002-03, this was an air powered drill, used 2 6cyl turboe'd Ingersoll-Rand air compressors @180 CFM each to run an air powered drill down to 60 meters for seismic studies in west antarctica, (best hole, 13 minutes flat in and out of a 60 meter hole, I am the worlds FASTEST ice driller!) and Blood Falls, in the dry valleys in antarctica in 2004, where we were to drill core with the Eclipse drill in a tongue of a glacier, however, it was too warm (if you can believe it!) and the hole would fill with melt water, and as the drill head was not a sealed unit, we could not drill. this year it is a new drill, mostly computer controlled, that we are testing in NW greenland. 4 inch core electric driven, in a fluid to keep the hole from collapsing, as are all deep Ice drills. specific training begins next week, and I can get you more info then. check uot the above site, and go through all the gallery, as pics of the drills are in there....