1. Pilots' Estimation of Altitude of a Small Unmanned Aircraft System (sUAS). (September 2018) Authors: Lennertz, Tracy; Sparko, Andrea L.; Cardosi, Kim; Yost, Alan; Kendra, Andrew; Lu, Jason; Sheridan, Tom Journal: Proceedings of the Human Factors and Ergonomics Society ... Annual Meeting Issue: Volume 62:Part 1(2018) Page Start: 49 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗