Question: An American twin-engine attack helicopter that was developed for the United States Marine Corps as part of the H-1 upgrade program is also called what when based on the ICAO phonetic alphabet pronunciation of it's variant letter? 
Sentence (from "Americanist phonetic notation"): Americanist phonetic notation, also known as the North American Phonetic Alphabet or NAPA, is a system of phonetic notation originally developed by European and American anthropologists and language scientists (students of Neogrammarians) for the phonetic and phonemic transcription of indigenous languages of the Americas and for languages of Europe.
Relevant evidence: No