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Posted

Hi Folks,

 

Me again, new problem, I am modelling a new aircraft, it has canard fore planes, the animations are all great BUT!!! it seems that as the aircraft controls are deflected for up pitch the aircraft actually pitches down, therefore on take off it just buries its nose in the dirt and explodes, I can see no specific entry in an INI file to tell the game that the aircraft has the pitch control at the front of the aircraft and I know of no other aircraft in game to use as reference (looked at the viggen but I didn't see the obvious answer if there is one)

Posted

Do you have the ini entry like this?

 

[LeftStabilizer]

SystemType=CONTROL_SURFACE

InputName=PITCH_CONTROL

MovingSurface=TRUE

CDdc=0.0018

Cmdc=-0.15536

MaxDeflection=30

MinDeflection=-25

ControlRate=1.0

ModelNodeName=Left_Canard

ReverseModelOrientation=True

Posted

Craig,

 

Canards should be given an aerodynamic surface entry under [AircraftData], like so:

 

 

[AircraftData]

Component[008]=LeftCanard

Component[009]=RightCanard

 

They would then require the appropriate entries, as would any lifting surface:

 

[LeftCanard]

ParentComponentName=Fuselage

ModelNodeName=Line01

DestroyedNodeName=

ShowFromCockpit=TRUE

DetachWhenDestroyed=TRUE

StructuralFactor=1.25

DamageRating=DISABLED

MassFraction=0.007

HasAeroCoefficients=TRUE

LiftSurface=TRUE

CLa=0.261

CD0=0.0004

CDL=0.0012

Cmq=-1.7825

Cmad=-0.8818

Cyb=-0.0109

Clp=-0.0025

Cnb=0.0055

CL0MachTableNumData=5

CL0MachTableDeltaX=0.40

CL0MachTableStartX=0.00

CL0MachTableData=0.986,1.000,1.037,1.020,1.051

CLaMachTableNumData=5

CLaMachTableDeltaX=0.40

CLaMachTableStartX=0.00

CLaMachTableData=1.001,1.000,0.979,0.910,0.938

CD0MachTableNumData=5

CD0MachTableDeltaX=0.40

CD0MachTableStartX=0.00

CD0MachTableData=1.825,1.000,1.028,2.494,2.773

CmqMachTableNumData=5

CmqMachTableDeltaX=0.40

CmqMachTableStartX=0.00

CmqMachTableData=0.971,1.000,1.107,1.261,0.873

ClpAlphaTableNumData=15

ClpAlphaTableDeltaX=4.00

ClpAlphaTableStartX=-28.00

ClpAlphaTableData=1.474,1.361,1.264,1.182,1.115,1.063,1.027,1.006,1.000,1.009,1.034,1.074,1.129,1.200,1.285

XacMachTableNumData=5

XacMachTableDeltaX=0.40

XacMachTableStartX=0.00

XacMachTableData=3.856,3.724,3.585,3.476,3.236

Ymac=-1.19

MovingSurface=TRUE

ControlSystemID=1

StructuralFactor=1.00

MinExtentPosition= -1.2907,-1.6681,0.0000

MaxExtentPosition= 1.2907, 1.6681,0.2600

CollisionPoint[001]=

CollisionPoint[002]=

SystemName[001]=LeftCanard

 

[RightCanard]

ParentComponentName=Fuselage

ModelNodeName=Line30

DestroyedNodeName=

ShowFromCockpit=TRUE

DetachWhenDestroyed=TRUE

StructuralFactor=1.25

DamageRating=DISABLED

MassFraction=0.007

HasAeroCoefficients=TRUE

LiftSurface=TRUE

CLa=0.261

CD0=0.0004

CDL=0.0012

Cmq=-1.7825

Cmad=-0.8818

Cyb=-0.0109

Clp=-0.0025

Cnb=0.0055

CL0MachTableNumData=5

CL0MachTableDeltaX=0.40

CL0MachTableStartX=0.00

CL0MachTableData=0.986,1.000,1.037,1.020,1.051

CLaMachTableNumData=5

CLaMachTableDeltaX=0.40

CLaMachTableStartX=0.00

CLaMachTableData=1.001,1.000,0.979,0.910,0.938

CD0MachTableNumData=5

CD0MachTableDeltaX=0.40

CD0MachTableStartX=0.00

CD0MachTableData=1.825,1.000,1.028,2.494,2.773

CmqMachTableNumData=5

CmqMachTableDeltaX=0.40

CmqMachTableStartX=0.00

CmqMachTableData=0.971,1.000,1.107,1.261,0.873

ClpAlphaTableNumData=15

ClpAlphaTableDeltaX=4.00

ClpAlphaTableStartX=-28.00

ClpAlphaTableData=1.474,1.361,1.264,1.182,1.115,1.063,1.027,1.006,1.000,1.009,1.034,1.074,1.129,1.200,1.285

XacMachTableNumData=5

XacMachTableDeltaX=0.40

XacMachTableStartX=0.00

XacMachTableData=XacMachTableData=3.856,3.724,3.585,3.476,3.236

Ymac=1.19

MovingSurface=TRUE

ControlSystemID=1

StructuralFactor=1.00

MinExtentPosition=

MaxExtentPosition=

CollisionPoint[001]=

CollisionPoint[002]=

SystemName[001]=RightCanard

 

Finally, set them up as control surfaces:

 

[LeftCanard]

SystemType=CONTROL_SURFACE

InputName=PITCH_CONTROL

RotationAxis=X-AXIS

MovingSurface=TRUE

MaxDeflection=-10.0

MinDeflection=3.5

ControlRate=0.5

MaxControlSpeed= 255.0

ModelNodeName=05

 

 

[RightCanard]

SystemType=CONTROL_SURFACE

InputName=PITCH_CONTROL

RotationAxis=X-AXIS

MovingSurface=TRUE

MaxDeflection=-10.0

MinDeflection=3.5

ControlRate=0.5

MaxControlSpeed= 255.0

ModelNodeName=06

ReverseModelOrientation=TRUE

 

 

These values are from an as yet unreleased model, so you'll want to recalculate for your purposes. The pitch axis I've set here opposes the models elevator pitch, as the real-life aircraft uses an FBW system that pulls the nose down at low speed, high AoA (as would be the case during a carrier landing).

 

If you want the canards to pitch up with the elevators, just add the following line to the last two data fields: ReverseInput=True

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