Very Light Jet (VLJ) / Entry Level Jet (ELJ) Operations
Pilot workload in VLJ/ELJ types. The advent of such relatively complex but single-pilot aircraft has prompted research into the workload issues raised and the human factors issues which underlie these. NASA researchers have completed exploratory studies of pilot performance in high workload scenarios set in busy airspace using a level 5 FFS.
Source: Very Light Jet (VLJ) / Entry Level Jet (ELJ) Operations – SKYbrary Aviation Safety