A "hobby" grade remotely operated tracked vehicle used for final removal of solids from a radioactive storage tank. Two models were used; the first vehicle was based on a standard bulldozer geometry that included fully functional blade control (updown, tilt) using an onboard hydraulic system. The second vehicle was an excavator style, with an operating boom and bucket, as well as a rotating cab. Both carried the vacuum hose that was used to suck up the material.