Wake Turbulence

Without major changes, the current air transportation system will be unable to accommodate the expected increase in demand by 2025. One proposal to address this problem is to use the Global Positioning System to enable aircraft to fly more closely spaced. This approach, however, might be limited by the wake turbulence problem, which can be a safety hazard when smaller aircraft follow relatively larger aircraft too closely. To examine how this potential hazard might be reduced, Congress in 2005 directed NASA to request a study from the NRC to assess the federal wake turbulence R&D program. This book provides a description of the problem, an assessment of the organizational challenges to addressing wake turbulence, an analysis of the technical challenges in wake turbulence, and a proposal for a wake turbulence program plan. A series of recommendations for addressing the wake turbulence challenge are also given.Table of ContentsFront MatterSummary1 Introduction2 Organizational Challenges in Wake Turbulence Research3 Technical Challenges in Wake Turbulence Research4 Wake Turbulence Program Plan5 Findings and RecommendationsAppendixesAppendix A: Statement of TaskAppendix B: Committee BiographiesAppendix C: List of SpeakersAppendix D: Acronyms and AbbreviationsAppendix E: Sample Wake Encounter Reporting Form