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Rabbit Tool
A hand powered portable hydraulic ram, specially designed for insertion between a door and its frame for rapid forcible entry.


Radiant extension
Fire that has transferred ignition heat to adjacent materials across open space. One reason some city fire codes prohibit windows facing each other in adjacent warehouses.


Rapeller
Crew of specialist hot-shot firefighters who are trained to access a fire area by sliding down ropes suspended from a hovering helicopter. Also used for delivering wilderness first aid if a rapeller is an EMT.


Rapid entry team
See FAST.


Rapid intervention team
See FAST.


Ready team
A company of firefighters waiting to be relieve another company.


Reburn
(1) Repeat burning of an area over which a fire has previously passed, but left fuel that later ignites when burning conditions are more favorable; (2) An area that has re-burned.


Recovery
Location and removal of deceased victims. Also, the time needed for a firefighter to spend in rehab before being considered ready to continue working the incident.


Red card
Credentials issued to qualified wildland firefighters, listing their qualifications and specialties.


Red-flag day
Weather conditions creating a critical fire hazard, may require closing the forest to non-emergency activities in order to minimize the risk of accidental wildland fires.


Reducer
Plumbing adapter for connecting hoses of two different diameters; may also be double male or double female connections of different sizes.


Reflash Watch
A person assigned to observe and monitor an extinguished fire, to ensure that it does not reflash or re-kindle.


Reflash, re-kindle
A situation in which a fire, thought to be extinguished, resumes burning.


Rehab, Rehabilitation sector
An area for physical and mental recuperation at a fire scene, usually equipped with beverages, and chairs, isolated from environmental extremes (cold, heat, noise, smoke). This rest area enables firefighters to relax, cool off (or warm up) and regain hydration by way of preventing injury. An EMT may be assigned to monitor firefighter vitals when they enter and leave rehab. See


Relief valve
A valve set to open at a specified pressure so as to not exceed safe operating pressure in hoses or pumps.


Rescue
Physical removal of a live person or animal from danger to a place of comfort.


Rescue company
Squad of firefighters trained and equipped to enter adverse conditions and rescue victims of an incident. Often delegated to a truck company.


Rescue Engine
A single piece of fire apparatus that can operate as either a rescue or an engine. This apparatus normally is outfitted with heavy rescue equipment, hoselines, pump, water tank, etc.


Residential sprinkler system
A sprinkler system arranged for fire suppression in a dwelling.


Residual pressure
The amount of pressure in a hydrant system when a hydrant is fully open, such as during a fire; should be engineered to provide domestic supply of water to homes and businesses during a large fire in the district.