Coast Guard and National Oceanic & Atmospheric Administration researchers report the successful landing of an unmanned aircraft system on the flight deck of Coast Guard Cutter 'Healy', marking the first time a UAS has completed a take-off and landing aboard a Coast Guard icebreaker. UAS operators from AeroVironment, designers of the Puma All Environment UAS, working alongside researchers from the Coast Guard Research and Development Center and NOAA made necessary adjustments following several unsuccessful attempts to land the Puma AE on the icebreaker’s flight deck. High winds, heavy fog, and icing conditions delayed further attempts until Monday night when skies cleared enough for another attempt.