tail_volume_coefficient_sizing.py
- class openconcept.stability.tail_volume_coefficient_sizing.HStabVolumeCoefficientSizing(**kwargs)
Bases:
ExplicitComponent
Computes horizontal stabilizer reference area using tail volume coefficient method from Raymer (see Equation 6.27 in Section 6.4 of 1992 edition).
- Inputs:
ac|geom|wing|S_ref (float) – Wing planform area (scalar, sq ft)
ac|geom|wing|MAC (float) – Wing mean aerodynamic chord (scalar, ft)
ac|geom|hstab|c4_to_wing_c4 (float) – Distance from the horizontal stabilizer’s quarter chord (of the MAC) to the wing’s quarter chord (scalar, ft)
- Outputs:
ac|geom|hstab|S_ref (float) – Horizontal stabilizer reference area (scalar, sq ft)
- Options:
C_ht (float) – Tail volume coefficient for horizontal stabilizer, by default 1.00 from Table 6.4 in Raymer 1992 for jet transport aircraft. See the table for other values (twin turboprop is 0.9).
- class openconcept.stability.tail_volume_coefficient_sizing.VStabVolumeCoefficientSizing(**kwargs)
Bases:
ExplicitComponent
Computes vertical stabilizer reference area using tail volume coefficient method from Raymer (see Equation 6.26 in Section 6.4 of 1992 edition).
- Inputs:
ac|geom|wing|S_ref (float) – Wing planform area (scalar, sq ft)
ac|geom|wing|AR (float) – Wing aspect ratio (scalar, dimensionless)
ac|geom|vstab|c4_to_wing_c4 (float) – Distance from the vertical stabilizer’s quarter chord (of the MAC) to the wing’s quarter chord (scalar, ft)
- Outputs:
ac|geom|vstab|S_ref (float) – Vertical stabilizer reference area (scalar, sq ft)
- Options:
C_vt (float) – Tail volume coefficient for vertical stabilizer, by default 0.09 from Table 6.4 in Raymer 1992 for jet transport aircraft. See the table for other values (twin turboprop is 0.08).