{ "formatVersion": 1, "kind": "ffb-bridge.profile", "id": "addon-rotorsim-ec135", "revision": 3, "metadata": { "title": "Rotorsim EC135", "description": "Rotorsim EC135: aircraft-owned cyclic neutral in the documented FFB mode; estimated spring and damping.", "author": { "name": "FFB-Bridge", "id": "rohsam" }, "aircraft": [ { "name": "EC135", "kind": "helicopter", "identifiers": [ { "scheme": "airframedb", "value": "eurocopter-ec135" } ] } ], "sims": [], "hardware": [], "tags": [ "starting-point", "estimated-feel", "third-party", "reviewed-configuration" ], "targets": [ { "aircraftId": "eurocopter-ec135", "implementationId": null, "simulator": "xplane12", "scope": "addon-starting-point", "developer": "Rotorsim", "addonName": "Rotorsim EC135" } ], "evidence": { "basis": "research-derived-estimates", "summary": "Rotorsim EC135: aircraft-owned cyclic neutral in the documented FFB mode; estimated spring and damping.", "reviewedOn": "2026-09-24", "sourceUrls": [ "https://www.rotorsim.de/de/manual/users-guide/installation", "https://www.rotorsim.de/de/manual/users-guide/change-log", "https://www.rotorsim.de/de/manual/users-guide/flight-manual/controls", "https://www.rotorsim.de/de/manual/users-guide/technical-information/preferences-file-format", "https://www.rotorsim.de/de/forum/englischsprachiges-forum?catid=4&id=103&start=0&view=topic", "https://skcrftrepo.rotorsim.de/aircraft/EC%20135%20V5/moza_ab9_ec135.preset", "https://developer.x-plane.com/wp-content/plugins/datarefs-app/datarefs.json", "https://skcrftrepo.rotorsim.de/aircraft/EC%20135%20V5/skunkcrafts_updater.cfg", "https://skcrftrepo.rotorsim.de/aircraft/EC%20135%20V5/plugins/ec135/lin.xpl", "https://skcrftrepo.rotorsim.de/aircraft/EC%20135%20V5/plugins/ec135/win.xpl", "https://skcrftrepo.rotorsim.de/aircraft/EC%20135%20V5/ec135.acf", "https://skcrftrepo.rotorsim.de/aircraft/EC%20135%20V5/skunkcrafts_updater_whitelist.txt", "https://airframedb.com/aircraft/eurocopter-ec135" ], "estimatedSettings": [ "Force amplitudes, damping, friction, response curves and cue onset are engineering estimates, not measured hand forces.", "The indicated-airspeed tuning reference is a selected control-feel reference, not published cruise TAS." ], "limitations": [ "Rotorsim EC135 XP12 v5.36. Original ACF identifies EC35 and EC 135 V5. The reader additionally requires the custom mode3; title/native trim alone cannot admit the integration.", "Hydraulically controlled four-blade helicopter with an artificial cyclic force-neutral point. Fixed nominal spring/damping; no airspeed-squared loading, body-rate torque or rotor-frequency inference.", "The add-on owns FTR, beep trim and AFCS neutral. Bridge follows fresh native pitch/roll trim in its FFB mode, independently of AP. Local FTR and trim relief remain disabled; no trim is added to simulator input.", "Custom AFCS/SAS transitions are version-dependent. Generic AP-follow is disabled because the developer requires trim following even with AP and servos off. No HPG H135/H145 interfaces are borrowed. AP servo-follow and neutral hold remain disabled; engagement indicators are not force-demand signals.", "Twin turbine, four-blade EC135 with skids and no flaps. Cockpit and mission equipment share this control architecture. Keep main-rotor periodic frequency off until shaft-speed semantics are accepted. ", "120 KIAS is an estimated feel reference, not cruise TAS or a certified limit. No invented Mach, VNE or weight scheduling.", "ADR-0113 read-only mode plus two independently fresh, bounded trim channels. Invalid/stale targets release follow and do not enable a competing local owner. Pause and aircraft change invalidate samples. Native PID or supported absolute-position follow remains inside Armed safety gates. No add-on or firmware configuration is applied.", "Spring 0.35; lateral scale 0.72; trim authorities 0/0; per-axis output cap .55. Editable engineering estimates, not measured hand forces. No body-rate torque, surface following or fabricated hydraulic-failure loads.", "Physical and installed-product checks remain deferred. Original files and static inspection establish the documentary contract, not observed in-flight FTR or AFCS behavior.", "Select the add-on FFB/MOZA joystick mode to supply its neutral contract. Other modes retain the conservative fixed-centering profile. Hardware spring travel and gains remain user calibration." ] }, "derivedFrom": { "kind": "profile", "id": "addon-rotorsim-ec135", "version": 2 }, "createdWith": "FFB-Bridge 1.6", "createdAt": "2026-09-21", "updatedAt": "2026-09-24", "addon": { "developer": "Rotorsim", "product": "EC135", "simulator": "xplane12" } }, "compatibility": { "minAppVersion": "1.6.0-beta.1" }, "modules": [ { "type": "force-model", "schemaVersion": 7, "data": { "Forces": { "SpringStrength": 0.35, "SpringDeadband": 0.02, "ForceGain": 0, "CruiseSpeedRefKnots": 120, "MaxOutputForce": 0.55, "MasterGain": 0.65, "QBlendEnabled": false, "QSpringStartKnots": 8, "QSpringFullKnots": 60.0, "QSpringMinimumFactor": 1, "HydraulicAeroLoadFactor": 0, "LoadShapingExponent": 1.4, "SpringAirspeedStiffenGain": 0, "SpringAirspeedStiffenCap": 5, "ElevatorForceScale": 1, "AileronForceScale": 0.72 }, "Ground": { "Enabled": true, "Rumble": { "MinSpeedKt": 2, "FullSpeedKt": 30, "Gain": 0 }, "Thump": { "ReferenceSinkFps": 6, "MinSinkFps": 1, "Gain": 0.5 }, "Bumps": { "StartSpeedKt": 15, "FullSpeedKt": 60, "Gain": 0 }, "Brake": { "MinSpeedKt": 3, "FullSpeedKt": 30, "BrakeDeadband": 0.05, "Gain": 0 }, "Reverse": { "MinSpeedKt": 30, "FullSpeedKt": 120, "Gain": 0 }, "NosewheelShimmy": { "MinSpeedKt": 5, "FullSpeedKt": 35, "Gain": 0 }, "GroundAccelPitch": { "Gain": 0, "DeadbandG": 0.03 }, "SkidScrape": { "MinSpeedKt": 2, "FullSpeedKt": 10, "MaxSpeedKt": 25, "Gain": 0.1 }, "SurfaceScalingEnabled": true, "Undercarriage": 3 }, "StickFeel": { "TrimFeelEnabled": false, "TrimFeel": { "ElevatorAuthority": 0.6, "AileronAuthority": 0.3 }, "GLoadEnabled": false, "GLoadStiffness": { "MinFactor": 0.6, "GGain": 0.06, "MaxFactor": 1.15 }, "DynamicDeadbandEnabled": false, "DynamicDeadband": { "LowSpeedWidening": 0.15, "FullSpeedRefKnots": 66.0 }, "ControlEdgeEnabled": false, "ControlEdge": { "EdgeStart": 0.85, "Gain": 0.3 }, "RateDampingEnabled": false, "RateDamping": { "PitchGain": 0, "RollGain": 0, "MaxForce": 0.2 }, "StickDropEnabled": false, "StickDrop": { "Force": 0.25, "FadeKts": 36.0 }, "TrimReliefEnabled": false, "TrimRelief": { "ElevatorAuthority": 0, "AileronAuthority": 0 }, "CyclicDampingEnabled": true, "CyclicDamping": { "Gain": 0.35, "MaxForce": 0.35, "VelocityNoiseFloor": 0.12, "SmoothingTimeConstantSeconds": 0.015, "PitchGain": null, "RollGain": null }, "StickFrictionEnabled": false, "StickFriction": { "Strength": 0, "PitchStrength": null, "RollStrength": null }, "ControlInertiaEnabled": false, "ControlInertia": { "PitchStrength": 0, "RollStrength": 0 }, "SoftStopsEnabled": false, "SoftStops": { "PitchStart": 0.85, "PitchStrength": 0, "RollStart": 0.85, "RollStrength": 0 }, "ForceTrimEnabled": false, "ForceTrim": { "HoldStrength": 0.55, "Deadband": 0.02, "BreakoutTravel": 0.3, "BeepTrimRate": 0.25, "FollowUpTrim": false, "FollowUpRate": 0.15, "FollowUpMaxAirspeedKt": 40, "FollowUpDeadband": 0.06 }, "HydraulicTrimCenteringEnabled": false }, "Aero": { "Enabled": true, "Stall": { "Gain": 0 }, "Overspeed": { "Gain": 0.1 }, "Mach": { "MinMach": 0.9, "FullMach": 0.92, "Gain": 0 }, "Turbulence": { "MinStddev": 0.02, "FullStddev": 0.3, "Gain": 0.05, "AmbientGain": 0, "VerticalWindGain": 0, "VerticalWindStartFps": 1, "VerticalWindFullFps": 15 }, "Spoiler": { "MinDeploy": 0.1, "MinSpeedKt": 60, "FullSpeedKt": 200, "Gain": 0 }, "Flap": { "MaxFlapIndex": 1, "MinFlapIndex": 1, "MinSpeedKt": 48.0, "FullSpeedKt": 84.0, "Gain": 0 }, "Gear": { "MinSpeedKt": 80, "FullSpeedKt": 150, "Gain": 0 }, "Etl": { "StartKt": 12, "StopKt": 24, "Gain": 0.06 }, "Vrs": { "MaxIasKt": 28, "OnsetSinkFps": 5, "FullSinkFps": 15, "MinEngineRpmPct": 0.5, "Gain": 0, "MinCollectivePct": 0.4 }, "TwoPerRev": { "MinSpeedKt": 30, "FullSpeedKt": 100, "Gain": 0, "BladeCount": 2 }, "Rbs": { "VneKt": 130, "OnsetFraction": 0.85, "Gain": 0 }, "ShakerEnabled": false, "Shaker": { "Amplitude": 0.5 }, "TurbulenceWindowSamples": 20 }, "AeroDrag": { "Enabled": false, "Flap": { "MaxFlapIndex": 1, "Gain": 0, "MinKnots": 30.0, "FullKnots": 84.0 }, "Spoiler": { "Gain": 0, "MinKnots": 60, "FullKnots": 220, "MinDeploy": 0.05 }, "Gear": { "Gain": 0, "MinKnots": 70, "FullKnots": 200 }, "Propwash": { "Gain": 0, "MinRpm": 0.3, "WashoutKnots": 86.4 } }, "Mechanical": { "Enabled": true, "GearDeploy": { "Gain": 0 }, "FlapStep": { "Gain": 0 }, "FlapMotion": { "Gain": 0, "MinimumPositionDelta": 0.001, "PacketHoldSeconds": 0.12, "ArrivalSettleSeconds": 0.25 }, "GearMotion": { "Gain": 0, "MinimumPositionDelta": 0.001, "PacketHoldSeconds": 0.12, "ArrivalSettleSeconds": 0.25 }, "FlapArrival": { "Gain": 0 } }, "Watchdog": { "StaleSec": 5, "FadeMs": 500 }, "Autopilot": { "FollowEnabled": false, "FollowAuthority": 0.05, "FollowSpringStrength": 0.25, "FollowSpeed": 1, "NeutralHoldEnabled": false, "NeutralHoldStrength": 0.6 }, "Engine": { "Enabled": false, "Rumble": { "IdleRpmPct": 0.55, "FullRpmPct": 1, "Gain": 0, "IdleRoughnessGain": 0, "IdleSmoothRpmPct": 0.45, "FrequencyAtMaxRpmHz": 0 }, "Rotor": { "NominalRotorRpm": 0, "IdleRpmPct": 0.05, "FullRpmPct": 1, "Gain": 0, "GovernorDroopBelowPct": 0.97, "GovernorDroopFloorPct": 0.85, "GovernorDroopGain": 0 } }, "StickAlive": { "Enabled": true, "RotationKick": { "Enabled": false, "PitchGain": 0, "RollGain": 0, "MaxOutput": 0, "DeadbandRadPerSec2": 0.75 }, "SurfaceFollow": { "Enabled": false, "Gain": 0, "FullAirspeedKnots": 100, "MinAirspeedKnots": 30, "DeltaDeadband": 0.05, "MaxOutput": 0 }, "SideslipCoupling": { "Enabled": false, "Gain": 0, "FullAirspeedKnots": 110, "MinAirspeedKnots": 40, "BetaDeadbandRad": 0.02, "MaxOutput": 0 }, "UseSimEngineVibration": false, "UseTireLoadThump": false, "TireLoadGain": 0 }, "ControlInput": { "Mode": 0, "Pitch": { "CommandForce": 0.5, "ForceDeadZone": 0.05, "Travel": 0.25, "Positive": null, "Negative": null, "PositiveCommandForce": 0.5, "NegativeCommandForce": 0.5, "PositiveForceDeadZone": 0.05, "NegativeForceDeadZone": 0.05, "PositiveTravel": 0.25, "NegativeTravel": 0.25 }, "Roll": { "CommandForce": 0.5, "ForceDeadZone": 0.05, "Travel": 0.25, "Positive": null, "Negative": null, "PositiveCommandForce": 0.5, "NegativeCommandForce": 0.5, "PositiveForceDeadZone": 0.05, "NegativeForceDeadZone": 0.05, "PositiveTravel": 0.25, "NegativeTravel": 0.25 }, "OverRangeCue": true }, "Hydraulics": { "LossLoadIncrease": 0 }, "ControlSystem": 3 } } ] }