fastga.models.weight.mass_breakdown.a_airframe.a3_tail_weight module

Python module for tail weight calculation consisting of the htp and vtp weight calculations, part of the airframe mass computation.

class fastga.models.weight.mass_breakdown.a_airframe.a3_tail_weight.ComputeTailWeight(**kwargs)

Bases: openmdao.core.group.Group

Weight estimation for tail weight

Based on a statistical analysis. See [Ray12] but can also be found in [Gud13]

Set up corresponded components if user didn’t define specifically.

setup()

Build this group.

This method should be overidden by your Group’s method. The reason for using this method to add subsystem is to save memory and setup time when using your Group while running under MPI. This avoids the creation of systems that will not be used in the current process.

You may call ‘add_subsystem’ to add systems to this group. You may also issue connections, and set the linear and nonlinear solvers for this group level. You cannot safely change anything on children systems; use the ‘configure’ method instead.

Available attributes:

name pathname comm options

class fastga.models.weight.mass_breakdown.a_airframe.a3_tail_weight.ComputeTailWeightGD(**kwargs)

Bases: openmdao.core.group.Group

Weight estimation for tail weight

Based on a statistical analysis. See [Ros85a] traditionally used on commercial aircraft but found to work fairly well on high performance GA aircraft.

Set up corresponded components if user didn’t define specifically.

setup()

Build this group.

This method should be overidden by your Group’s method. The reason for using this method to add subsystem is to save memory and setup time when using your Group while running under MPI. This avoids the creation of systems that will not be used in the current process.

You may call ‘add_subsystem’ to add systems to this group. You may also issue connections, and set the linear and nonlinear solvers for this group level. You cannot safely change anything on children systems; use the ‘configure’ method instead.

Available attributes:

name pathname comm options

class fastga.models.weight.mass_breakdown.a_airframe.a3_tail_weight.ComputeTailWeightTorenbeekGD(**kwargs)

Bases: openmdao.core.group.Group

Weight estimation for tail weight

Based on a statistical analysis. See [Ros85a] traditionally used on commercial aircraft but found to work fairly well on high performance GA aircraft. Should only be used with aircraft having a diving speed above 250 KEAS.

Set up corresponded components if user didn’t define specifically.

setup()

Build this group.

This method should be overidden by your Group’s method. The reason for using this method to add subsystem is to save memory and setup time when using your Group while running under MPI. This avoids the creation of systems that will not be used in the current process.

You may call ‘add_subsystem’ to add systems to this group. You may also issue connections, and set the linear and nonlinear solvers for this group level. You cannot safely change anything on children systems; use the ‘configure’ method instead.

Available attributes:

name pathname comm options