The applicability of airborne communication nodes in the Armed Forces has been studied in a number of different studies and for varying purposes. This report presents a summary of a selection of these studies, in which the focus has ranged from conceptual studies to technically oriented studies. A common view is that using airborne nodes is beneficial for communications. For further analysis, a number of different military scenarios with airborne nodes for communication are described in the report. One scenario which uses an airborne node in a tactical radio network, another scenario with airborne nodes in a mobile core network and finally, a scenario in which a helicopter wish to connect to a terrestrial network. Based on the scenarios, a comprehensive analysis of the opportunities and challenges facing airborne nodes in the different scenarios are given. Issues that are treated are; how the connectivity and capacity is affected, the need of advanced antenna techniques, how highly mobile nodes affect the radio network and finally how realizable the different concepts are.