Intro
Conference Committee
Reviewers
Preface
Contents
About the Editor
Effect of Geometrical Parameters of a Tethered Aerostat on Longitudinal Stability Boundaries
1 Introduction
2 Mathematical Modeling
2.1 Aerodynamic Forces and Moments
2.2 Tether Cable Forces and Moments
2.3 Buoyancy Forces and Moments
2.4 Gravity Forces and Moments
3 Estimation of the Stability Characteristics
3.1 Balloon Equations of Motion
3.2 Equilibrium Trim Conditions
3.3 Formulations for Calculation of Stability Derivatives
3.4 Equilibrium Cable Shape

3.5 Cable Force Derivatives
3.6 Stability Equations (Longitudinal)
4 Effect of Geometrical Parameters on Longitudinal Stability Boundaries
5 Conclusion
References
CPACS LTA-Using Common Data Structures for Visualization and Optimization of Airship Designs
1 Introduction
1.1 Background
1.2 Objectives
2 Problem Definition and Formulation
3 Methodology
3.1 Airship Modeling
3.2 Parameter Estimation
3.3 Design Optimization
4 Results
5 Discussion and Conclusions
References
Airship Sling-Load Operations: A Model Flight-Test Approach
1 Introduction

1.1 Background
1.2 Objectives
2 Problem Definition and Formulation
2.1 Load Exchange and Certification
2.2 Maneuverability
3 Methodology
3.1 Sling-Load Operation
3.2 Model Flight-Test
4 Results
4.1 Cruise Mode
4.2 Dynamic Positioning
5 Discussion and Conclusions
5.1 Discussion
5.2 Conclusion
References
Optimization of TPU/TiO2 Films Using UV Additives for Improved Weather Stability of LTA Hull Materials
1 Introduction
2 Methodology
2.1 Materials
2.2 Method of Preparation of Films
2.3 UV-VIS Spectroscopy

2.4 Fourier Transform Infra-Red Spectroscopy (FTIR)
2.5 Artificial Accelerated Weathering
2.6 UPF Measurement
2.7 Yellowness Index
2.8 Gas Barrier Measurement
2.9 Tensile Testing of Films
3 Results and Discussion
3.1 UV-VIS Spectroscopy
3.2 Fourier Transform Infra-Red Spectroscopy
3.3 UPF Measurement
3.4 Yellowness Index
3.5 Gas Barrier Properties
3.6 Tensile Testing
4 Future Scope
5 Conclusion
References
Airship Turn Performance Estimated From Efficient Potential Flow Panel Method
1 Introduction
2 Problem Definition and Formulation

3 Methodology
4 Results
5 Discussion and Conclusions
References
Evaluation of High-Performance Fabric-Based Laminated Hull Material for High-Altitude Airship
1 Introduction
1.1 High-Altitude Airship System
2 Materials and Methods
2.1 Materials
2.2 Methods
3 Characterizations and Testing
3.1 Wide Angle X-ray Diffraction (XRD)
3.2 Differential Scanning Calorimetry (DSC)
3.3 Drop Shape Analyzer (DSA)
3.4 Atomic Force Microscopy (AFM)
3.5 T-Peel Test
3.6 Tensile Test
3.7 Tearing Test
3.8 Helium Gas Permeability Test