## Materials and Methods
As a result, initial CON5 scenarios were conducted ahead of time, separate from the larger CON4 scenarios (scheduled 21-25 May) to take advantage of good weather conditions, though with a lesser number of UAS due to limited flight crew availability. SAA2, conflict mitigation cooperative technology for the UAS-manned interaction: The purpose of this test was to demonstrate the ability to detect airborne conflicts and resolve these utilizing an information broadcast by Automatic Dependent Surveillance Broadcast (ADS-B) technology. UAF's approach for all SAA missions was to use a 'crawl, walk, run' approach beginning with manual control of functions and progressing, as able, through incrementally increasingly autonomous behavior with a'reach goal' of achieving fully autonomous behavior. The S1000 UAS was flown with the ADS-B to characterize its ability to accurately communicate and report its position to the Ground Control Station (GCS) via MAVLink, as displayed on Mission Planner GCS. Next, two UAS with ADS-B were flown simultaneously to determine the ability of the UTM system to accurately communicate with GCS and between the two UAS. Finally, the two UAS were flown in various cooperative profiles to determine the UTM system's ability to report relative positional information to the GCS, and determine both the operators' ability to manually perform separation/evasive UAS maneuvers and for the UAS to perform automatic Airborne-Based Detect And Avoid (ABDAA). To support this capability, UAF integrated an ADS-B unit with a S1000 Pixhawk to allow for ADS-B proximity data to command maneuvers. UAF's S1000 had already incorporated RTK GPS and a laser altimeter system for increased accuracy navigation. Immediately following the formal TCL3 flight campaign, UAF successfully demonstrated the ability of the S1000 to hold short of a UAS outfitted with an ADS-B transmitter and for the S1000 to initiate lateral motion away from an aggressing UAS with ADS-B. SAA3, conflict mitigation non-cooperative technology for the UAS-manned interaction: The purpose of this test was to demonstrate the ability to detect airborne conflicts and resolve these utilizing an information broadcast by optical obstacle avoidance technology. UAF partnered with IRIS Automation(tm) to demonstrate the abilities of the IRIS Hedgehog Collision Avoidance Module (HCAM) in providing SAA/ Detect And Avoid (DAA) functionality via optical sensors. As before, UAF proceeded along a 'crawl, walk, run' approach. The first step along this path demonstrated the functionality of the IRIS Automation HCAM system in generating data, which could be used manually  
Figure 5:4 (**A**) Airspace for the statically controlled airspace allocation scenario and (**B**) airspace for the dynamically controlled airspace allocation scenario. by UAS flight crews to ensure separation with the encroaching vehicles. Following the success of this first step, it was hoped that the system might later be demonstrated in the autonomous mode. SAA4, conflict mitigation non-cooperative technology for the UAS-UAS interaction: The purpose of this test was to demonstrate the ability to detect airborne conflicts and resolve them utilizing information obtained from ground radar tracks. Again, UAF's approach utilized a 'crawl, walk, run' approach beginning with the manual control of functions and progressing through incrementally increasingly autonomous behavior with a reach goal of fully autonomous behavior. The S1000 UAS was flown with the MESA-SRR ground radar to characterize its ability to accurately communicate and report its position to the GCS vs. MAVLink and integrate with Simulyze USS. The S1000 was then flown versus a 2 nd UAS to determine the ability of the MESA-SSR to accurately detect these and pass this information to GCS.