On this page you will find a searchable and comprehensive alphabetical list of aviation terms. You can help us make it the most comprehensive list in the world. If we have missed anything, click on the ‘send us your word’ button to send us your word, acronym or definition and we will consider adding it to our dictionary.
Areas of airspace designated around a volcano. These have special conditions and the size of the area can change based on the volcanic alert level. Entering a VHZ has specific requirements.
7 Day
FREE
Trial
Get access to the complete catalogue of your chosen subscription level for 7 days. After your free trial, your paid subscription automatically commences. Cancel anytime.
Get FREE Trial
