Bushfires are more difficult to put out in long unburnt, heavy fuels. Prescribed burning is important in reducing fuel loads and is undertaken periodically, is a milder burn, aiming to minimise crown scorch and usually only burns a portion of an area. It can be called prescribed burning, hazard reduction burning, controlled burning or ecological maintenance burning. Prescribed burning can use ground and aerial prescribed burning, the latter using aircraft to drop small incendiary capsules on a grid spacing that allows for mild burns and covering large areas safely. The mild burns are designed to join up late in the evening where conditions are cooler and the grid is designed for that to occur. It is important that flame heights are kept as low as possible and there are unburnt patches remaining.
Helicopters and Drones in prescribed burning
