The following list of attributes drives the Missile Datcom geometric definition. Attributes which are required and those that are optional (note: Missile Datacom will provided default values inherently for optional arguments) are marked so in the description:

• capsType This string attribute labels the FaceBody as to which type the section is assigned. Can either be "Body" or "Fin".
• capsGroup This string attribute labels the FaceBody as to which "Fin" sections need to be grouped together.
  Note: The capsGroup string for Fins should have a FinSet# prefix to group Fins into FinSets. For example: FinSet1_1, FinSet1_2, FinSet2_1, FinSet2_2
  All Fins within a FinSet are assumed to have the same airfoil sections without checking.
• capsReferenceArea [Optional] This attribute may exist on any Body. Its value will be used as the SREF entry for reference area.
• capsReferenceChord [Optional] This attribute may exist on any Body. Its value will be used as the LREF entry for longitudinal reference length.
• capsReferenceSpan [Optional] This attribute may exist on any Body. Its value will be used as the LATREF entry for lateral reference length.
• capsReferenceX [Optional] This attribute may exist on any Body. Its value will be used as the XCG entry for longitudinal position of C.G.
• capsReferenceY [Optional] This attribute may exist on any Body. Its value will be used as the ZCG entry for vertical position of C.G.