A system that uses a set of mathematical equations to predict certain aspects of fire behavior in wildland fuels when provided with data on fuel and environmental conditions.

Courses defined as containing supplemental knowledge and skills not required for safe and tactical operations success on a wildfire.

Any item which can produce sufficient heat over a sufficient duration of time capable of bringing forest fuels to their ignition temperature and sustain open flame combustion.

A line connecting points of equal temperature on a weather map.

Ground Support Unit staff provide ground transportation in support of incident operations. They maintain and repair vehicles and mobile ground support equipment and perform pre- and postuse inspections on all ground equipment assigned to the incident. The staff supply fuel for incident mobile equipment, and develop and implement the incident Traffic Plan. Additionally, during major incidents, Ground Support Unit staff maintain a transportation pool of vehicles (e.g., cars, buses, pickup trucks) suitable for transporting personnel, as opposed to tactical vehicles such as ambulances.

The aerated solution created by forcing air into, or entraining air in water containing a foam concentrate by means of suitably designed equipment or by cascading it through the air at a high velocity. Foam reduces combustion by cooling, moistening and excluding oxygen. 

Navigation of aircraft by visual reference to landmarks.

Unit of wildland delineated by logical and strategic topographic features for preattack planning.

A load that is carried or extends outside of the aircraft fuselage.

A permanent facility for the operation of helicopters which has been built to FAA standards and which is marked on aeronautical charts. Natural resource agencies refer to agency heliports as permanent helibases.