![]() ![]() Inertial navigation continues to be used on military aircraft despite the advent of GPS because GPS signal jamming and spoofing are relatively simple operations. The vehicle gets its flight path orders from an inertial navigation system". Īmerican aeronautical engineers dispute this, pointing out that as is the case with the MQ-1 Predator, the MQ-9 Reaper, and the Tomahawk, "GPS is not the primary navigation sensor for the RQ-170. General David Deptula also said "There was a problem with the aircraft and it landed in an area it wasn't supposed to land". Stephen Trimble from FlightGlobal assumes UAV guidance could have been targeted by 1L222 Avtobaza radar jamming and deception system supplied to Iran by Russia. Ī Christian Science Monitor article relates an Iranian engineer's assertion that the drone was captured by jamming both satellite and land-originated control signals to the UAV, followed up by a GPS spoofing attack that fed the UAV false GPS data to make it land in Iran at what the drone thought was its home base in Afghanistan. government also stated that it was still investigating the cause of the loss. The statement did not specify the model of the aircraft. Department of Defense released a statement acknowledging that it had lost control of a UAV during the previous week, claiming that it was "flying a mission over western Afghanistan" when control was lost. They claimed that it was reassembled for display purposes and was painted by Iran to hide the damage. ![]() Some US officials stated the drone broke into three pieces during impact. ![]() Dan Goure, an analyst at the Lexington Institute, stated the largely intact airframe ruled out the possibility of an engine or navigational malfunction: "Either this was a cyber/electronic warfare attack system that brought the system down or it was a glitch in the command-and-control system." At least one US source admitted that Iran could have interrupted the data-link and brought it to a soft landing. The drone appeared to be largely intact, except for possible minor visible damage on its left wing. There have been reports that "foreign officials and American experts who have been briefed on the effort" state that the crashed UAV was taking part in routine surveillance of Iranian nuclear facilities inside Iranian airspace. UAV operated by the Central Intelligence Agency was flying on the Afghan side of the Afghanistan–Iran border when its operators lost control of the vehicle. The government of the United States initially claimed that its forces in Afghanistan had lost control of a UAV on 4 December 2011 and that there was a possibility that this is the vehicle that crashed near Kashmar. The government of Iran announced that the aircraft was brought down by its cyber warfare unit stationed near Kashmar and "brought down with minimum damage" They said the aircraft was detected in Iranian airspace 225 kilometers (140 mi) from the border with Afghanistan. Images of the RQ-170 Sentinel taken from a US Army recognition manual ![]()
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