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Flight Evaluation of Helicopter Curved Point-in-Space Approach Procedures

Halbe, Omkar and Hamers, Mario and Lüken, Thomas and Schmerwitz, Sven (2020) Flight Evaluation of Helicopter Curved Point-in-Space Approach Procedures. AIAA Journal. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.D0210. ISSN 0001-1452.

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Official URL: https://arc.aiaa.org/doi/full/10.2514/1.D0210


Helicopter point-in-space instrument procedures are key to enabling simultaneous noninterfering procedures and enhancing all-weather access in dense airspace and remote locations. This paper describes the flight evaluation of navigation and human performance in helicopter curved point-in-space procedures as part of Single European Sky Air Traffic Management Research. An experimental procedure was designed at Donauwörth heliport including radius-to-fix legs with descent gradients and airspeed variations in the terminal segments, followed by a steep, straight-in final approach segment. Two strategies were evaluated for vertical descent profiles: fixed flight path angle, and fixed vertical speed. Three test pilots were instructed to execute the entire approach until the missed approach point in simulated instrument meteorological conditions using advanced autopilot modes and head-down flight and navigation displays. Navigation performance was measured using cross-track and vertical-track deviations. Pilot workload and situational awareness were measured using the task load index and the situational awareness rating technique, respectively. The results showed that flight paths were maintained within the required navigation performance limits despite strong crosswinds, and the final approach glidepath was successfully captured in all cases. All pilots reported low workload, adequate spare capacity, and high situational awareness in all cases. Furthermore, the fixed flight path angle descent was found to induce lower workload and required fewer crew actions compared with the fixed vertical speed descent. Owing to the small sample size, conclusions with statistical significance cannot be established.

Item URL in elib:https://elib.dlr.de/139926/
Document Type:Article
Title:Flight Evaluation of Helicopter Curved Point-in-Space Approach Procedures
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Halbe, OmkarAirbus Helicopters Deutschland (AHD)UNSPECIFIEDUNSPECIFIED
Hamers, MarioAirbus Helicopters Deutschland (AHD)UNSPECIFIEDUNSPECIFIED
Schmerwitz, SvenUNSPECIFIEDhttps://orcid.org/0000-0002-9194-8838UNSPECIFIED
Date:21 December 2020
Journal or Publication Title:AIAA Journal
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:Helicopter, PinS, Point-In-Space, Approach Procedure
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Air Traffic Concepts and Operation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Guidance > Pilot Assistance
Deposited By: Lüken, Dr.-Ing. Thomas
Deposited On:04 Jan 2021 10:44
Last Modified:28 Mar 2023 23:58

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