Changes

'''Back-burning:'''  Instead of constructing fire breaks, an area ahead of an advancing fire might be set alight and burnt in a controlled manner to remove the fuel from that area, thus impeding the advance of the main fire.

'''Back-burning:'''  Instead of constructing fire breaks, an area ahead of an advancing fire might be set alight and burnt in a controlled manner to remove the fuel from that area, thus impeding the advance of the main fire.

'''Aeroplanes:'''  Both fixed and rotary-wing aeroplanes (helicopters) are used to drop water onto fires, particularly in areas difficult to reach on the ground.

'''Aircraft:'''  Both fixed-wing and rotary-wing aircraft (helicopters) are used to drop water onto fires, particularly in areas difficult to reach on the ground.

== Extinguishers ==

== Extinguishers ==