IR thermal images of land, water surfaces and buildings have ben taken from an airplane by means of an IR scanner which has been previously described. The scanner was mounted in a Porter aircraft. Several flights have been made over a region of the province of Buenos Aires, in Argentine, in different days, at different times, under various climatic conditions. The height of the flights ranged from 100 meters to 500 meters, with 300 meters as the standard altitude. In every flight thermal images in the 8-14 micrometers spectral region have been acquired and stored for later analysis. Real time visualization of the images in a PC monitor allowed to select the images to be stored. We have analyzed image of buildings in villages, isolated buildings, water courses, water surfaces, roads and fields with different types of vegetation, in a region with a relative low density of population. Some thermal images and the conclusions of the thermal studies performed are presented.