Phase I helicopter test flight evaluation of IFR approaches to a heliport under GPS/WAAS guidance

摘要

There exists a need for development of Global Positioning System/Wide Area Augmentation System (GPS/WAAS) Instrument Flight Rules (IFR) Terminal Instrument Procedures (TERPS) criteria for helicopter approaches to a heliport; Helicopter Localizer Performance with Vertical Guidance (HLPV). Twenty helicopter test flights, resulting in 151 approaches, were performed with the Sikorsky S-76A helicopter at the FAA William J. Hughes Tech Center Airport in Atlantic City, New Jersey using LPV guidance. The results presented in this document are the quantitative portion of analysis, which includes the final approach segment with TSE/NSE/FTE components, flight tracks, mean, ± 2 SD''s, ± 6 SD''s (lateral and vertical); the missed approach segment with existing TERPS protected surfaces, flight tracks, mean, ± 2 SD''s, ± 6 SD''s (lateral and vertical); height loss analysis; turn segment with existing TERPS protected surfaces, flight tracks, mean, ± 2 SD''s, ± 6 SD''s (lateral and vertical).