8.Exhibit D Engine Types.docx

ENGINE MINIMUM REQUIREMENTS EXHIBIT E

ENGINE TYPES

NWCG Engine Types – Minimum Requirements

Engine Type

Components

Tank Minimum Capacity (gal)

Pump Minimum Flow (gpm)

Ladders per

NFPA 1901

Master Stream 500 gpm Min.

Maximum GVWR (lbs)

Personnel (NWCG min.)

Fire Engine Staffing

An ENGB will be with every engine, and the minimum staffing is two individuals for Type 4, 5, 6, 7, engines.

For Type 3 engines, minimum staffing is three individuals, including an Engine Boss.

• FS - A Single Resource Boss may supervise a type 6 or 7 engine.

TYPE 3 & 4 ENGINES

Type 3 and 4 engines have four-wheel drive to make driving over rough terrain easier and must have a maximum gross vehicle weight rating (GVWR) in excess of 26,000 lbs. The minimum number of personnel a Type 3 must carry is 3, while a Type 4 must carry have a minimum capacity of at least 2. Type 3s are required by NFPA 1906 to have a minimum of 500 US gallons of water and pump 150 US gallons per minute at a pressure of 250 pounds per square inch. The Type 4 engine sacrifices a smaller pump and less hose for a larger 750 gallon tank. The Type 4 standard of pumping is 50 US gallons per minute at a pressure of 100 pounds per square inch. These two engines often look similar to one another, however, the biggest difference are their minimum personnel and tank capacities.

TYPE 5, 6, & 7 ENGINES

Type 5, 6, & 7 fire engines have a much smaller configuration than a typical Type 3 or 4 engine. The smaller body still allows the department to carry 50 to 400 gallons of water with the maneuverability and accessibility that you don’t have in a Type 3 or 4. Types 5-7 are used heavily for initial attack and their GVWR’s are rated in ascending order from 26,000 lbs in Type 5 engines to 14,000 on Type 7 engines. This classification of engines are designed to hold a minimum of 2 people and carry hose diameters ranging from 1 inch to 1 ½ inches.

A RULE OF THUMB

As a general rule of thumb, fire engine types are specified from largest to smallest size, Types 1-2 being the largest in order to carry large pumps and ladders for structure fires, and Types 5-7 being the smallest for navigating rough wildland terrain. Type 3 and 4 engines are mid-sized engines built both for wildland mobility and large water capacity. The general difference between these two is that Type 4 engines have much larger water tanks than Type 3 engines.