During these weeks I explored the possibilities of using hot air balloons. The trick was, how do I generate enough heat to get lift the thermal camera? The answer is, a LOT. We are going to need to not only generate a lot of heat, we are going to need to have a huge envelope which holds this hot air. I’ve built a couple alcohol burners already, which worked OK. Early models exploded from vapour build-up, and later models had too little pressure to stay lit. Calibrating a burner to burn for long enough while still holding together will be quite the trick. In the mean time, I’ve been thinking: hot air balloons usually float on the calmest days. If Skalines is windy, is this the best approach?