referenceType

complexType · extension complexBaseType · all

Reference values

Reference values of the model: the reference area and length that normalize the aerodynamic coefficients, and the moment reference point the moment coefficients refer to (see aeroPerformanceMapType).

Attributes

Name	Type	Constraints	Use	Default	Description
`@externalDataDirectory`	`xsd:string`		optional		Directory of the external file the element was read from, as URI
`@externalDataNodePath`	`xsd:string`		optional		Path of the parent element in the merged dataset, at which the element was inserted from an external file
`@externalFileName`	`xsd:string`		optional		Name of the external file the element was read from

Child elements

Name	Type	Constraints	OccurrenceHow often the element may appear at this place. The schema writes it as minOccurs and maxOccurs on the declaration.	Default	Description
allThe children below may appear in any order. Each may appear at most once.
`area`	`doubleBaseType`		[0..1] optional		Reference area, typically the planform area of the wing [m^2]
`length`	`doubleBaseType`		[0..1] optional		Reference length, typically the mean aerodynamic chord (MAC). It is the only reference length in CPACS and normalizes all three moment coefficients, the rolling and the yawing moment included; positions given in per cent of the MAC refer to it. [m]
`point`	`pointType`		[0..1] optional		Moment reference point in the CPACS coordinate system. Its x-coordinate is typically that of the leading edge of the mean aerodynamic chord, so that positions in per cent of the MAC run from x (0 %) to x + length (100 %). y is typically 0, z often 0, the height of the fuselage nose or the middle of the center fuselage. [m]

Used by

In a dataset · 2 paths

In the schema · 2 declarations

Type	Name
`aircraftModelType`	`reference`
`rotorcraftModelType`	`reference`