High Quality Content by WIKIPEDIA articles! The Aerosonde is a small unmanned aerial vehicle (UAV) designed to collect weather data, including temperature, atmospheric pressure, humidity, and wind measurements, over oceans and remote areas. The Aerosonde was developed by Insitu, and is now manufactured by Aerosonde Ltd, which is a strategic business of AAI Corporation. The Aerosonde is powered by a modified Enya R120 model aircraft engine, and carries on board a small computer, meteorological instruments, and a GPS receiver for navigation.