Havre Electronic Bomb Scoring Site (HC 30, Box 8000; Havre MT 59501-8000 in 1989) is a Formerly Used Defense Site for USAF evaluation of aircrews on training missions. The site was initially established for the 1965 Strategic Air Command Bombing and Navigation Competition (Havre Bomb Plot); the RBS Express was stationed at a siding near Chinook, Montana; and a new "temporary mobile radar site" 35 mi (56 km) northeast of Havre, Montana, was announced in 1982 ("MDL 35"). The 1983 site was in Hill County, Montana, with seven semi-trailers, and a new permanent site was approved by 1984 for also north of Havre ("new operations facility and housing for 74 military personnel [planned for] late 1985.") "Upon decommissioning of [the mobile site at] Havre, MT Serial Number 7 went to Detachment 18, F