A scalable dropsonde launcher will be developed that will be able to fit a range of UAVs. Dropsondes for high-precision, high-density, and surface-based measurements will be developed. Phase I will involve designing a launcher that uses an existing Anasphere dropsonde and fits into a representative UAV provided by Vanilla Aircraft. The ultimate result of the project will be a dropsonde system that can be fitted to many NASA UAVs and enable them to gather in-situ atmospheric and surface measurements using dopsondes. Several specific areas of NASA research will be able to make use of dropsonde-equipped UAVs. One of the most prominent areas that would benefit is hurricane research: dropsondes would bring a new dimension to the data gathered by UAVs flying into hurricanes, making their measurements more comparable to those of manned aircraft. A second area is wildland firefighting operations: dropsondes would allow the UAV to return local meteorological profiles that could be used by incident commanders. Atmospheric and polar research are two more generic areas of research which will benefit from a dropsonde system for UAVs.