All hooked up Published March 11, 2003 ANDERSEN AIR FORCE BASE, Guam (AFPN) -- Airman 1st Class Robert Walstead hooks up a Hobart power unit to the underside of a B-1B Lancer on March 7. Walstead is a maintainer assigned to the 7th Expeditionary Aircraft Maintenance Unit here. (Photo by Airman 1st Class Joshua Strang)