21 August 2011: USAF EQ-4B crashed southeast of Jalalabad, Afghanistan. 11 June 2012: USN RQ-4A assigned to the Navy's BAMS program crashed near Naval Air Station Patuxent River, Maryland, US. 21 June 2017: USAF RQ-4B crashed near Lone Pine, California, US. 26 June 2018: USAF RQ-4B crashed into the sea off Naval Station Rota, Spain. August 2021: USAF RQ-4B crashed near Grand Forks Air Force Base, North Dakota, US. Specifications (RQ-4B Block 30/40) See also References This article contains material that originally came from the web article Unmanned Aerial Vehicles by Greg Goebel, which is public domain. External links RQ-4 Global Hawk U.S. Air Force fact sheet "RQ-4A Global Hawk (Tier II+ HAE UAV)". Federation of American Scientists "Global Hawk RQ-4A-B High Altitude Long Endurance UAV". Defense Update Raytheon product page on the Global Hawk Integrated Sensor Suite Luftwaffe Euro Hawk page, Bundeswehr Euro Hawk page Results of Global Hawk accident investigation board RQ-4 Global Hawk profile on Air Attack RQ-004 Global Hawk 1990s United States military reconnaissance aircraft Unmanned military aircraft of the United States Single-engined jet aircraft Low-wing aircraft V-tail aircraft Signals intelligence Synthetic aperture radar Aircraft first flown in 1998