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Royal aeronautical society

British-founded multidisciplinary professional institution dedicated to the global aerospace community

Pronunciation
/ˈrɔɪəl ɛːrəˈnɔːtɪkəl səˈsʌɪɪti/
/ˈrɔɪəl ˌɛrəˈnɔdɪk səˈsaɪədi/