CPACS 3.5

CPACS 3.5 feature list

• new headerType and versioning strategy
• cpacsVersion marked as deprecated and moved to versionInfo node
• fix typos:
  • various fixes in documentation
  • airportCompatibility
  • mAdditionalCenterTanks
  • consistency in globalBeamPropertiesType
• capType : add uID
• massBreakdown
  • genericMassTyp: add componentUID to link the corresponding components
  • mOperatorItemsType :
    • add mAdditionalCenterTanks
    • add mEngineAPUOils
    • add mRemovableCrewRests
    • add mToiletFluids
    • add mUnusableFuels
    • add mWaterReservoirs
    • add mMiscellaneous
  • align mLandingGear elements with more the new generic landingGears definition
  • add mGenericFuelTanks to mFuselageStructure
• sparPositionType : add sparPositionCurve (defines a spar position via a point on a curve)
• isLink attribute: marked as deprecated
• Systems definition
  • aeroMaps, loadCases
    • configurationUID --> configurationDefinitionUID
  • aircraftAnalysesType
    • add systemAnalyses
  • aircraftModelType
    • add configurationDefinitions
    • add systemArchitectures
  • engineType
    • add rotors
  • fuels replaced by chemicalEnergyCarriers and electricalEnergyCarriers
    • make sub-elements optional
• genericSystemType: add components
  • operationalCaseType
    • add configurations
    • mPayload optional
  • vehiclesType
    • add systemElements
    • add rotorElements
    • add energyCarriers
  • weightAndBalanceCaseType
    • add configurations
  • aircraftModelType
    • add systemAnalyses/powerBreakdowns
• add cryogenic fuel storage
• add ducts definition
• hinge line definition aligned with TiGL
• fix wront type assignment in costHydraulicSystemsType
• wingWingAttachmentType: upperShellAttachment and lowerShellAttachment restricted to upperShell and lowerShell
• add wingCutouts
• add fuselageStructuralMountsType
• controlSurfaceTrackTypeType: joint position names in figures changed to count from P1
• add CI schema validation
• add python script for automatic syntax formatting
• add automatic generation and publication of html documentation via GitHub actions and Appveyor

All issues for this release can be found online at: CPACS 3.5 project board

CPACS 3.5-RC

• new headerType and versioning strategy
• cpacsVersion marked as deprecated and moved to versionInfo node
• fix typos:
  • various fixes in documentation
  • airportCompatibility
  • mAdditionalCenterTanks
  • consistency in globalBeamPropertiesType
• capType : add uID
• massBreakdown
  • genericMassTyp: add componentUID to link the corresponding components
  • mOperatorItemsType :
    • add mAdditionalCenterTanks
    • add mEngineAPUOils
    • add mRemovableCrewRests
    • add mToiletFluids
    • add mUnusableFuels
    • add mWaterReservoirs
    • add mMiscellaneous
  • align mLandingGear elements with more the new generic landingGears definition
  • add mGenericFuelTanks to mFuselageStructure
• sparPositionType : add sparPositionCurve (defines a spar position via a point on a curve)
• isLink attribute: marked as deprecated
• Systems definition
  • aeroMaps, loadCases
    • configurationUID --> configurationDefinitionUID
  • aircraftAnalysesType
    • add systemAnalyses
  • aircraftModelType
    • add configurationDefinitions
    • add systemArchitectures
  • engineType
    • add rotors
  • fuels replaced by chemicalEnergyCarriers and electricalEnergyCarriers
    • make sub-elements optional
• genericSystemType: add components
  • operationalCaseType
    • add configurations
    • mPayload optional
  • vehiclesType
    • add systemElements
    • add rotorElements
    • add energyCarriers
  • weightAndBalanceCaseType
    • add configurations
  • aircraftModelType
    • add systemAnalyses/powerBreakdowns
• add cryogenic fuel storage
• add ducts definition
• hinge line definition aligned with TiGL
• fix wront type assignment in costHydraulicSystemsType
• wingWingAttachmentType: upperShellAttachment and lowerShellAttachment restricted to upperShell and lowerShell
• add wingCutouts
• add fuselageStructuralMountsType
• controlSurfaceTrackTypeType: joint position names in figures changed to count from P1
• add CI schema validation
• add python script for automatic syntax formatting
• add automatic generation and publication of html documentation via GitHub actions and Appveyor

All issues for this release can be found online at: CPACS 3.5 project board

CPACS 3.4

CPACS 3.4 feature list

• Revision of decks definition (compatibility break) (#674)
• Mass breakdown: add mSparSkins and mSparCells to mSpar (#719)
• Mass breakdown: fix hierarchical error in mMiscellaneous (compatibility break) (#729)
• Mass breakdown: fix typo in mPylon (compatibility break) (#720)
• Nacelle guide curves: set description optional (#753)
• Mission definition: add uID to elements in geographicPointConstraintType (#754)
• Mission definition: add powerFraction, powerRemaining and powerConsumed to missionSegmentEndConditionType (#754)
• Mission definition: rename referenceEndCondition to referenceEndConditionUID in constraintSettingsType (compatibility break) (#754)
• Mission definition: rename reqClassification to requirementClassification in flightPerformanceRequirementType (compatibility break) (#754)
• Add contour coordinates for cell definition (#656)
• Add vehicle independent node for external geometry (#717)
• Remove paxFlow element from aircraftAnalysesType (compatibility break) (#752)
• Docs: improve documentation of name, description and uID usage (#734)
• Docs: add description of parentUID concept (#733)
• Docs: add description of symmetry inheritance (#735)
• Docs: add description of engine nacelles (#731)
• Docs: add description of mission definition (#754)
• General improvements of the documentation

All issues for this release can be found online at:

• CPACS 3.4 Milestone list

CPACS 3.3

CPACS 3.3 feature list

• Revision of the mission definition including parameter lapses within segments (compatibility break) (#634, #635, #716)
• Revision of the point performance definition (compatibility break) (#696)
• Revision of performance requirements (compatibility break) (#697, #698, #705, #706, #716)
• Revision of landing gears (compatibility break) (#632, #657, #691, #693)
• Revision of control surface tracks definition (compatibility break) (#605)
• Load analysis: Revision of flightLoadCasesType (compatibility break) (#637, #689, #701)
• Load analysis: Revision of aeroCasesType (compatibility break) (#685, #692)
• Load analysis: loadEnvelopesType relocated and envelope simplified to a single uID-Sequence (compatibility break) (#659)
• Load analysis: Replaced dynamicAircraftModel elements by loadApplicationPointSets (compatibility break) (#663)
• Flight dynamics: Group flightPerformance, flyingQualities and trim under flightDynamics parent node (compatibility break) (#638, #694, #707)
• Introduced a configuration node to describe aircraft and payload configurations (#636, #700)
• Fuselage profiles: Introduced rectangle and super ellipse as standard profiles (#624)
• Fuselage profiles: Added vector to specify curve parameters for profiles with kinks (#630)
• Internal structure: Added standard profiles to profile based structural elements (#627)
• Internal structure: Added ribPosts element to wingRibCrossSectionType (#628)
• Internal structure: Upper and lowerCap now optional in sparCellType (#684)
• Internal structure: Stringers and frames can reference sections (#680)
• MassBreakdown: Set mass inertia Jxy, Jxz and Jyz optional (#621)
• MassBreakdown: Added mMiscellaneous element (#646)
• MassBreakdown: Added fuselage walls (#633)
• Added flight envelope to aircraft global element (#640)
• Added new base types: doubleVectorBaseType, posIntVectorBaseType, doubleArrayBaseType (#641)
• Added 'none' and 'inherit' to list of symmetry flags (#643)
• Set mapType attribute of vector and array elements to optional (requires TiXI>=3.1) (#642)
• AeroMaps: Defined angleOfSideslip as input and added distinction between minimum and maximum angleOfAttack in aeroLimitMaps (compatibility break) (#676, #687)
• AeroMaps: Added missing singular incrementMap element to incrementMaps in aeroLimitsMap (compatibility break) (#662)
• AeroMaps: Adopted the camelCase style for damping derivatives (compatibility break) (#686)
• Introduced common nomenclature for speeds and altitudes (compatibility break) (#695)
• Control distributors are set to optional (#709)
• Added instructions for superposition of control surface deflections (#710)
• Further elaboration of development standards (#694, #704, #711)
• General improvements of the documentation

All issues for this release can be found online at:

• CPACS 3.3 Milestone list

CPACS 3.2

CPACS 3.2

• Replaced tool-specific elements with xsd:any element and strict schema request for validation
• UIDs adapted to type xsd:ID and xsd:IDREF
• UIDs optional for transformationType and pointTypes
• Replaced xsd:sequence elements with xsd:all elements where possible
• cpacsVersion element set to optional
• GuideCurves are now optional for nacelleCowlType
• Documentation adaptions

All issues for this release can be found online at:

• CPACS 3.2 Milestone list

CPACS 3.1

CPACS 3.1

• Redefinition of aeroPerformanceMaps
• Added nodes for detailed engine pylons and nacelles
• Added nodes to model generic walls
• Extension of material definition
• Added fuselage compartment definition
• Added fuselage fuel tank definition
• Explicit wing stringer definition integrated into wing stringer definition
• RelativeDeflections renamed to control parameters
• Control distributors modified to only have a single command input vector
• "cpacsVersion" restricted to current schema version
• Code cleanup
• Cpacs_schema.xml removed
• Documentation adaptions

All issues for this release can be found online at:

• CPACS 3.1 Milestone list

CPACS 3.0

CPACS 3.0

• New component segment definition; this is affecting all structural components of wings
• Renamed angleOfYaw into angleOfSideslip
• Fixes in documentation
• Made all uID attributes required
• Minor fixes in choices & typos
• Added nodes for the geometry of generic system components
• Added performance requirements for aircraft models
• Redefined the whole mission definition including point performances
• Made link to missionUID in trajectory optional
• Added new parameters to enginePerformanceMap
• Relocated mFixedLeadingEdge and mFixedTrailingEdge within the massBReakdown structure
• Changed aeroPerformanceMap to use altitude and standard atmosphere instead of reynolds number
• Added an optional local direction for guide curves and an illustrational image
• Announced toolspecifcs definitions as depricated; will be removed from CPACS in next release and should be managed in separate namespace by tool maintainers
• Added an option for aerodynamic performance maps of elastic aircraft
• Enabled the definition of multiple aeroPerformanceMaps
• Enabled the use of spar points for rib placement and rib points for spar placement
• Added explicit stringer definitions for wing cells

All issues for this release can be found online
https://github.com/DLR-LY/CPACS/issues

CPACS 2.3.1

CPACS 2.3.1

• Added a branch for the definition of design studies.
• Added thermal properties for materials.
• Revised the definition of flights/flightplans.
• Added an airline definition.
• Added structure for skid gear components.
• Changed the units for material density to SI units.
• Revised the top level fleets node and put it into the new airline node.

All issues for this release can be found online
https://github.com/DLR-LY/CPACS/issues

CPACS 2.3

CPACS 2.3 release is now available

• Included vector notation for weight and balance.
• Included flight system and flight dynamic information.
• Included top level aircraft requirements.
• Included a prototype for detailed nacelle geometries.
• Included structural mounts.
• Extended aero data set for loads.
• Extended the mass breakdown.
• Updated the symmetry definition, please take a look at the documentation point 5 adn 6.

All issues for this release can be found online
https://github.com/DLR-boeh-da/CPACS/issues?utf8=%E2%9C%93&q=+milestone%3A%22CPACS+2.3%22+