Opt whether to use Horizontal or Vertical Flight Path Angle.
| Member | Value | Description |
|---|---|---|
| eFPAUnknown | -1 | Represents a flight path angle not supported by the Object Model. |
| eFPAHorizontal | 0 | Use Horizontal Flight Path Angle. |
| eFPAVertical | 1 | Use Vertical Flight Path Angle. |





