Browse Topic: Head-up displays
This paper presents preliminary results of a pilot-in-the-loop (PIL) study of different cueing designs to reduce pilot workload in rotorcraft shipboard landings. The participants were tasked with flying an approach to touchdown on the deck of an Arleigh Burke Flight IIA class Destroyer under both day visual flight rules (VFR) and night-unaided, zeroillumination conditions. For each condition, the participants were presented with three different cue types. For the day iterations these were a generic military standard heads up display (HUD), a ship fixed tunnel in the sky (tunnel), and a virtual flight lead cueing system (FLCS). The zero-illumination night condition was deemed impossible to land with only the HUD, so it was replaced with a combination of the tunnel and FLCS for the purpose of gaining initial feedback on combining elements of different systems. Terminal landing constraints (location, heading, and impact velocity) were used as measures of pilot performance, the NASA Task Load Index (TLX) survey was used to evaluate perceived pilot workload, and the System Usability Scale (SUS) was used to rate interface and cueing usability. Initial findings showed that pilots viewed the tunnel cueing as having the lowest perceived workload while the FLCS provided the best terminal performance. All types of 3D cueing improved performance when compared to the HUD baseline. The use of 3D cueing also expanded the operational envelope to include zero-illumination conditions. For completeness, the study requires additional subjects, specifically those that have prior shipboard landing experience, as COVID-19 safety precautions paused in-person simulator testing early in the testing period. This body of work represents the next iteration of FLCS research, initially published in Ref. 1.
Google Glass is equipped with a head-up display, camera, microphone, and bone conduction audio transducer serving as a loudspeaker. It also has vibration sensors and a touchpad integrated in the sidepieces of the headset. With these features, Google Glass is well suited for visualization, diagnostics, and service purposes, as well as for technical interventions and person-to-person communication.
The scope of this document is limited to descriptions of the display characteristics of the Flight Dynamics, Inc. (FDI) Model 1000WS Head up Guidance System (HGS) as installed on the Boeing 727 airplane and certified by the Federal Aviation Administration for use in Category III landing operations. The symbology depicted in this document is referenced to the particular pilot task(s) for which it was designed. Also included are descriptions of operational features of the particular symbol along with any associated criteria regarding symbology constraints, source data, or position error.
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