CESSNA 172 Skyhawk TD — Other Documents

This document is a final report from the ASSURE A46 research team, focusing on the effectiveness of Visual Observers (VOs) in maintaining safe separation from crewed aircraft during small uncrewed aircraft (sUA) flight operations. It investigates the visual detection capabilities of VOs and their ability to avoid crewed aircraft. The report includes a literature review, flight test plans, and data analysis, highlighting the performance of VOs under various conditions. Key findings indicate that VOs with prior aviation experience perform better than those without, and environmental factors significantly affect detection capabilities. The report emphasizes the need for improved training standards for VOs to enhance safety in Extended Visual Line of Sight (EVLOS) operations.

• VOs with prior aviation experience are 89.5% effective in detecting intruder aircraft within 1 mile, but only 22.6% at 2 miles and 3.3% at 3 miles.
• Environmental factors such as ambient light and aircraft speed significantly impact VO performance.
• 40.7% of encounters with Near Mid-Air Collision (NMAC) violations were not perceived as requiring avoidance maneuvers by VOs.
• Training standards for VOs should include team-based skills and situational awareness to improve effectiveness.
• Further research is needed to explore the impact of various factors on VO performance.