| Name | Type | Description | 
|---|
| Length | 
Q_LENGTH
 | 
  | Length | Length of the segment, calculated at midpoint of cross-section, equal to the distance between inlet and outlet ports. |  
 
 | 
| GrossCrossSectionArea | 
Q_AREA
 | 
  | Gross Cross Section Area | Area of the cross section, including the duct itself and the interior flow space. |  
 
 | 
| NetCrossSectionArea | 
Q_AREA
 | 
  | Net Cross Section Area | Area of the cross section of the duct, excluding the interior flow space. |  
 
 | 
| OuterSurfaceArea | 
Q_AREA
 | 
  | Outer Surface Area | Total area of the extruded surfaces of the duct (not taking into account the end cap areas), normally generated as perimeter * length. |  
 
 | 
| GrossWeight | 
Q_WEIGHT
 | 
  | Gross Weight | Weight of the duct segment. |  
 
 |