Analysis of the pilots' decisions to eject in F-16 fighter aircraft accidents in Turkey

Ata, Nazım; Yazgan, Ebru

doi:10.1504/ijsa.2022.120610

Cited by 2 publications

(2 citation statements)

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“…The broad utilization of honeycomb structures has spurred a critical demand for advanced aircrew helmet liners. The consideration of a Margin of Safety becomes imperative in the context of crash landings and emergency ejections, as pilots are subjected to increased g-forces, resulting in elevated helmet weight and a heightened risk of neck injury [4,5]. Conventional materials like EPS (Expanded polystyrene) and EPP (Expanded polypropylene) fall short in impact performance and energy dissipation efficiency compared to honeycomb structural materials [6,7].…”

Section: Introductionmentioning

confidence: 99%

A comparative analysis of 3D woven honeycomb-based aircrew helmet liners against Nomex and Aluminum alternatives

Singh,

Behera,

Thakur

et al. 2024

Phys. Scr.

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This study investigates the energy dissipation efficiency of an aircrew helmet liner developed using 3D woven honeycomb structural composites compared to different commercially available honeycomb liner materials such as Nomex, and Aluminium. In contrast to liners with discrete density differences, the use of a honeycomb-based liner reduces the concern about delamination, back face deformation and fracture propagation. The research involves comparing several parameters related to crashworthiness, such as specific energy absorption (SEA), crush force efficiency (CFE), and margin of safety, which are crucial for head protection and ensuring helmet injury tolerance. These parameters play a vital role in assessing the ability of different configurations of the honeycomb liner during impacts. Flatwise compression and dynamic impact tests were conducted to evaluate the helmet liner's performance while maintaining consistency in the helmet shell component. Finite element analysis (FEA) and 3D X-ray Tomography techniques were utilized to analyse the back face deformation (BFD) at high-velocity impact and the internal damage resulting from impacts on the helmet liners, respectively. The results revealed that the 3D woven honeycomb liner configuration performs optimally in terms of energy absorption by demonstrating sufficient and balanced competency across these three critical factors. Additionally, the simulation result revealed that the 3D woven honeycomb liner exhibits wave propagation. This phenomenon enhances its energy absorption capacity and reduces back-face deformation attributed to its crushing behaviour. This research offers valuable insights for improving the performance of aircrew helmet liners, with a particular focus on utilizing 3D woven honeycomb liners featuring 3D woven solid structure to maintain exceptional structural integrity.

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Section: Introductionmentioning

confidence: 99%

A comparative analysis of 3D woven honeycomb-based aircrew helmet liners against Nomex and Aluminum alternatives

Singh,

Behera,

Thakur

et al. 2024

Phys. Scr.

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“…Flying a high-tech plane necessitates not just expert psychomotor skills and performance but also timely decision-making techniques including situation awareness, option selection and risk assessment in a constrained time (Endsley, 1997; Ata and Yazgan, 2022). Aside from moving the aircraft from one departure point to a destination point, pilots execute several tasks during operation (Mirjafari et al , 2022).…”

Section: Introductionmentioning

confidence: 99%

Aviation operators (pilots, ATCOs) decision-making process

Kale

Alharasees²,

Rohács³

et al. 2022

AEAT

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Purpose The purpose of this paper is to investigate and evaluate the subjective decision-making of pilots during final approach with varying degrees of experience for landing and go-around. Design/methodology/approach In this research, the “Lorenz Attractor” was modified and used to model the subjective decision-making of pilots during the final approach. For landing and go-around situations, “hesitation frequency” and “decision-making time” were calculated for the subjective decision-making of pilots. Findings In this research, the modified Chaotic Lorenz Model was used on MATLAB with varying degrees of experience, namely, student pilots, less-skilled pilots, experienced pilots and well-experienced pilots. Based on the outcomes, the less-skilled pilot needs nearly four times more decision-making time on landing or go-around compared to the well-experienced pilot during the final approach. Practical implications Operators (pilots, air traffic controllers) need to make critical and timely decisions in a highly complex work environment, which is influenced by several external elements such as experience level and human factors. According to NASA, 80% of aviation accidents occur due to human errors specifically over the course of the aviation decision-making process in dynamic circumstances. Due to the consequences of this research the operators' training should be redesigned by assisting flight instructors on the weaknesses of pilots. Originality/value This research explores the endogenous dynamics of the pilot decision-making process by applying a novel “Chaotic Lorenz Model” on MATLAB. In addition, the operator's total decision time formula was improved by including the decision reviewing time and external factors. Moreover, subjective decision-making model created by the current authors and Wicken's information model were modified to the highly automated systems.

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Analysis of the pilots' decisions to eject in F-16 fighter aircraft accidents in Turkey

Cited by 2 publications

References 0 publications

A comparative analysis of 3D woven honeycomb-based aircrew helmet liners against Nomex and Aluminum alternatives

A comparative analysis of 3D woven honeycomb-based aircrew helmet liners against Nomex and Aluminum alternatives

Aviation operators (pilots, ATCOs) decision-making process

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