Thermals above KSFO (San Francisco) The <height> tag defines the upper limit of the thermal. AI thermals have some limitations, i.e. they don't lean downwind, they are only cylindrical in shape, they don't interact with the terrain or weather. They work with JSBSim and YASim. Try using the sgs233 model or the Bocian for a good demonstration. Dave Culp, davidculp2 at comcast.net updated by Heiko Schulz, Heiko.H.Schulz@gmyx.net thermal 37.61633 -122.38334 13.49 4800.0 6000 Models/Geometry/thermalcap.xml thermal 37.531 -122.2639 13.49 4800.0 6000 Models/Geometry/thermalcap.xml thermal 37.7157 -122.3838 13.49 4800.0 6000 Models/Geometry/thermalcap.xml thermal 37.79 -122.397 13.49 4800.0 6000 Models/Geometry/thermalcap.xml thermal 37.757 -122.478 13.49 4800.0 6000 Models/Geometry/thermalcap.xml thermal 37.72021 -122.21745 13.49 4800.0 6000 Models/Geometry/thermalcap.xml thermal 37.80577 -122.30173 13.49 4800.0 6000 Models/Geometry/thermalcap.xml thermal 37.4112 -122.09064 13.49 4800.0 6000 Models/Geometry/thermalcap.xml thermal 37.4269 -121.9278 13.49 4800.0 6000 Models/Geometry/thermalcap.xml thermal 37.55953 -122.03683 13.49 4800.0 6000 Models/Geometry/thermalcap.xml thermal 37.5715 -122.33306 6 10000.0 6000 Models/Geometry/thermalcap.xml thermal 37.6036 -122.3477 -5 10000.0 6000 Models/Geometry/null.ac thermal 37.6971 -122.37445 -5 10000.0 6000 Models/Geometry/null.ac thermal 37.794041 -122.36 -5 10000.0 6000 Models/Geometry/null.ac thermal 37.47733 -122.0978 -5 10000.0 6000 Models/Geometry/null.ac thermal 37.6768 -122.29464 -5 10000.0 6000 Models/Geometry/null.ac thermal 37.6368 -122.1859 -5 10000.0 6000 Models/Geometry/null.ac