Definitions for "FRONTAL AREA"
Keywords:  tow, drag, trailer, pkg, gcwr
The projected area in square feet of the front of a truck or combination that is used in calculating air resistance; FA = (Overall Height (ft.) - 3/4 ft.) x Overall Width (ft.).
This refers to the square footage of front surface area that is exposed to air resistance by a moving vehicle, or a moving vehicle with a trailer. The frontal area of a vehicle can be a contributing factor when determining the size of a trailer that a vehicle can tow. A larger frontal area will add drag, thus reducing the vehicle's ability to tow a trailer. For many vehicles, frontal area restrictions limit a trailer's size to a specific Gross Combined Weight Rating (GCWR). The frontal area is also a determining factor in selecting an incomplete vehicle that complies with emissions requirements
This is the total area in square feet that a moving vehicle and trailer exposes to air resistance. The chart shows the limitations that must be considered in selecting a vehicle/trailer combination. Exceeding these limitations may significantly reduce the performance of your towing vehicle. FRONTAL AREA CONSIDERATIONS Vehicle Line Frontal Area Limitations/ Considerations With Ranger Base Vehicle Frontal Area 2.3L I4 Engine  50 sq. ft. 3.0L V6 or 4.0L V6 Engine    E-Series 60 sq. ft. All applications    F-150 Base Vehicle Frontal Area Without Class III Trailer Tow Group or 7700 Payload Group A or B  60 sq. ft. With Class III Trailer Tow Group or 7700 Payload Group A or B    Super Duty F-Series 60 sq. ft. All applications except F-550 Crew Cab 4x2 with High Capacity Trailer Tow Pkg.  90 sq. ft. F-550 Crew Cab 4x2 with High Capacity Trailer Tow Pkg.
Keywords:  cortex, lobe
the cortex of the frontal lobe