Start here
A few places to begin, from the aircraft’s story to the people who fly it.
Aircraft and simulator background
The Il-18D described in Nemeth's technical reference uses four AI-20 turboprops, retractable landing gear and electric flaps. Its elevator control is mechanically linked with a loading spring; the aileron runs combine rods and cables.
Ilyushin Il-18D
nemethdesigns.com · Read more ↗Mechanical controls and trim
Sections 2.1.5–2.1.7 describe rigid mechanical elevator controls with a loading spring and aileron runs using rods and cables. Elevator trim acts through a mechanical tab, and the right aileron has electric trim. The four-engine propulsion installation is separate from those primary-control mechanisms.
Ilyushin Il-18D
nemethdesigns.com · Read more ↗Transport equipment
The technical description identifies four AI-20 turboprops, retractable gear, electric flaps and the AP-6E autopilot. Passenger and cargo roles share this control-system description.
Ilyushin Il-18D
nemethdesigns.com · Read more ↗Meet Ilyushin Il-18D
The Il-18D described in Nemeth's technical reference uses four AI-20 turboprops, retractable landing gear and electric flaps. Its elevator control is mechanically linked with a loading spring; the aileron runs combine rods and cables.
The simulation is released for MSFS 2024. The technical PDF describes trim and an AP-6E autopilot, while a separate cockpit document identifies the instrument and control layout.
Ilyushin Il-18D
Ilyushin → · Explore the family →
Ilyushin Il-18D
nemethdesigns.com · Ilyushin Il-18D Civil Airliner — manual ↗Aircraft type designators
No type designator selected for this reference.
History & design
How the Il-18 family evolved
The Il-18 developed through A, B, V, E and D versions as the cabin, structure and onboard systems changed. Nemeth describes the early A as an 80-seat aircraft, followed by the strengthened B and later rearrangements for greater capacity. The D took the family toward longer non-stop sectors through increased fuel capacity. Its add-on represents a late, upgraded D, so descriptions of early passenger layouts or fuel systems should not be treated as universal across the family.
nemethdesigns.com · Ilyushin Il-18D Civil Airliner — manual ↗Nemeth technical description, Part 1, page 3; scope is the late Il-18D recreation.
Systems & details
Mechanical controls and trim
Sections 2.1.5–2.1.7 describe rigid mechanical elevator controls with a loading spring and aileron runs using rods and cables. Elevator trim acts through a mechanical tab, and the right aileron has electric trim. The four-engine propulsion installation is separate from those primary-control mechanisms.
Transport equipment
The technical description identifies four AI-20 turboprops, retractable gear, electric flaps and the AP-6E autopilot. Passenger and cargo roles share this control-system description.
In your simulator
Systems, equipment and documentation for each developer’s aircraft.
MSFS 2024Nemeth Designs Ilyushin Il-18D
Nemeth Designs · Released
Nemeth Designs Ilyushin Il-18D
Nemeth Designs · Released
Manuals & resources
Find your next read
Choose a topic for a short introduction and a link to the original source. Simulator references identify the developer and edition they cover.
Developer documentation
Ilyushin Il-18D Civil Airliner — product and aircraft referenceIlyushin Il-18D
Product description, configuration and simulator editions
nemethdesigns.com · Read the source ↗Developer manual
Ilyushin Il-18D Civil Airliner — manualIlyushin Il-18D
Nemeth technical description; sections 2.1.5–2.1.7 primary controls and trim; AP-6E and equipment
nemethdesigns.com · Read the source ↗Ilyushin Il-18D Civil Airliner — manualIlyushin Il-18D
Aircraft description and cockpit reference
nemethdesigns.com · Read the source ↗Read the original documentation from the people who created it. Manuals open on their publisher’s website.
Developer documentation
Ilyushin Il-18D Civil Airliner — product and aircraft referencenemethdesigns.com · Product description, configuration and simulator editionsDeveloper manual
Ilyushin Il-18D Civil Airliner — manualnemethdesigns.com · Nemeth technical description; sections 2.1.5–2.1.7 primary controls and trim; AP-6E and equipment Ilyushin Il-18D Civil Airliner — manualnemethdesigns.com · Aircraft description and cockpit referenceBuilt-in force-feedback profiles
Read the documentary basis, editable starting settings and remaining questions for the aircraft you fly. Each explanation refers to the exact profile revision shown.
Catalogue programme-20261011-v3 · 2 profile choices
Nemeth Designs Ilyushin Il-18D
Nemeth Designs · Free and Pro · Revision 1 · Partial review
MSFS 2024
A four-turboprop transport with mechanical flight controls and separate trim systems.
Ilyushin Il-18D Civil Airliner
Free and Pro · Revision 1 · Partial review
MSFS 2020 · MSFS 2024 · X-Plane 12
A four-turboprop transport with mechanical flight controls and separate trim systems.
Ilyushin Il-18D Civil Airliner
A four-turboprop transport with mechanical flight controls and separate trim systems.
Aircraft and simulator scope
- Ilyushin Il-18D Civil Airliner · MSFS 2020 · Variant starting point
- Ilyushin Il-18D Civil Airliner · MSFS 2024 · Variant starting point
- Ilyushin Il-18D Civil Airliner · X-Plane 12 · Variant starting point
Universal named airframe/configuration; intended MSFS2020/MSFS2024/XP12 starting point, not add-on or edition acceptance. · Physical facts and prior documentary review are reused from their archived dated sources; new market availability is not inferred.
The simulator model and controls
A four-turboprop transport with mechanical flight controls and separate trim systems.
How this profile feels
Spring resistance builds with the selected airspeed response. A separate aerodynamic term adds speed-dependent control load.
Valid trim provides the configured pressure relief. Autopilot following is off.
Aircraft and configuration
Four AI-20 turboprops, retractable gear and electrically driven wing flaps.
Technical sections 2.1.5-2.1.7 describe rigid mechanical elevator controls with a loading spring and mixed rod/cable aileron controls.
Mechanical controls and trim
Sections 2.1.5–2.1.7 describe rigid mechanical elevator controls with a loading spring and aileron runs using rods and cables. Elevator trim acts through a mechanical tab, and the right aileron has electric trim. The four-engine propulsion installation is separate from those primary-control mechanisms.
Transport equipment
The technical description identifies four AI-20 turboprops, retractable gear, electric flaps and the AP-6E autopilot. Passenger and cargo roles share this control-system description.
About the values
Strengths are normalized hardware-feel settings. They set the effect balance; hand force depends on the device and its limits. The IAS reference is a tuning value.
What the documentation establishes
Ilyushin Il-18D Civil Airliner: Four AI-20 turboprops, retractable gear and electrically driven wing flaps.
Ilyushin Il-18D Civil Airliner: Technical sections 2.1.5-2.1.7 describe rigid mechanical elevator controls with a loading spring and mixed rod/cable aileron controls.
Documentary review and sources
These decisions describe the documentary basis and remaining gaps for this revision. Aircraft documentation and a starting setting describe different kinds of evidence.
Aircraft and variant
ReviewedA four-turboprop transport with mechanical flight controls and separate trim systems.
Flight controls
InheritedA four-turboprop transport with mechanical flight controls and separate trim systems.
Trim
InheritedRight-aileron trim: Electric. Pitch authority 0.3 provides load relief and permitted centre movement; roll authority is 0.09.
Autopilot and stability
ReviewedAutopilot following is off; the configured spring and load retain the hardware feel.
Equipment
InheritedFour AI-20 turboprops, retractable gear and electrically driven wing flaps.
Speeds and limits
InheritedThe indicated-speed references set the profile response scale; they are separate from aircraft operating limits.
Simulator integration
ReviewedThe profile targets msfs2020, msfs2024, xplane12. Add-on-specific controls use only the supported references configured by this profile.
Force-feedback settings
InheritedThe settings define the profile’s effect balance. Device output limits affect physical hand force.
Starting settings and their rationale
These configured values are starting estimates. The explanations describe what each setting controls; physical validation appears separately below.
| Setting | Starting value | What it controls and why |
|---|---|---|
| Spring strength | Starting value0.74 | What it controls and whyElevator controls: Mechanical, with loading spring. The baseline spring is 0.74. Its low-speed blend reaches baseline strength at 95 KIAS. |
| Master force gain | Starting value0.85 | What it controls and whyScales overall profile strength while preserving effect balance, subject to device and output limits. |
| Profile force gain | Starting value0.8 | What it controls and whyThe aerodynamic-load gain is 0.8 with an indicated-speed reference of 190 KIAS. This supplies speed-dependent loading alongside the spring. |
| Profile force gain | Starting value0.8 | What it controls and whyThe aerodynamic-load gain is 0.8 with an indicated-speed reference of 190 KIAS. This supplies speed-dependent loading alongside the spring. |
| Profile force gain | Starting value0.8 | What it controls and whyThe aerodynamic-load gain is 0.8 with an indicated-speed reference of 190 KIAS. This supplies speed-dependent loading alongside the spring. |
| Force tuning speed/reference | Starting value190 kt | What it controls and whySets the IAS reference for aerodynamic loading. It is an estimate, not published cruise TAS or a flight limit. |
| Spring response reference speed | Starting value95.0 kt | What it controls and whySets the IAS where the low-speed blend reaches baseline strength; high-speed stiffening also uses it. |
| Aileron force scale | Starting value0.72 | What it controls and whyRoll and pitch aerodynamic scales are 0.72 and 1, respectively. They set the aerodynamic axis balance. No custom spring-travel curve is enabled. |
| Elevator force scale | Starting value1 | What it controls and whyScales pitch aerodynamic loading; pitch spring travel and trim responses are separate settings. |
| Trim feel | Starting valueEnabled | What it controls and whyRetained for compatibility and group membership. Trim relief, rather than this flag, controls centre movement. |
| Trim relief | Starting valueEnabled | What it controls and whyAllows trim relief with supported control law and valid telemetry. Axis authorities set its amount. |
| Autopilot follow | Starting valueDisabled | What it controls and whyAutopilot following is off; the configured spring and load retain the hardware feel. |
All 46 starting settings and their rationale
The settings define the profile’s effect balance. Device output limits affect physical hand force.
| Setting | Starting value | What it controls and why |
|---|---|---|
| Spring strength | Starting value0.74 | What it controls and whyElevator controls: Mechanical, with loading spring. The baseline spring is 0.74. Its low-speed blend reaches baseline strength at 95 KIAS. |
| Profile force gain | Starting value0.8 | What it controls and whyThe aerodynamic-load gain is 0.8 with an indicated-speed reference of 190 KIAS. This supplies speed-dependent loading alongside the spring. |
| Elevator force scale | Starting value1 | What it controls and whyScales pitch aerodynamic loading; pitch spring travel and trim responses are separate settings. |
| Aileron force scale | Starting value0.72 | What it controls and whyRoll and pitch aerodynamic scales are 0.72 and 1, respectively. They set the aerodynamic axis balance. No custom spring-travel curve is enabled. |
| Output force limit | Starting value0.55 | What it controls and whyCaps directed-force output. Native spring effects and device limits remain separate. |
Ilyushin Il-18D Civil Airliner: Mechanical elevator tab and electric right-aileron trim documented; independent pitch/lateral relief estimates. Rudder trim not roll trim. Estimated pitch/roll trim authorities 0.3/0.09; exact add-on sign, travel, units and build-specific neutral remain unqualified. Rudder trim never substitutes for roll trim.
| Setting | Starting value | What it controls and why |
|---|---|---|
| Elevator Authority | Starting value0.3 | What it controls and whyRight-aileron trim: Electric. Pitch authority 0.3 provides load relief and permitted centre movement; roll authority is 0.09. |
| Aileron Authority | Starting value0.09 | What it controls and whyScales supported roll-trim relief and permitted centre movement. Zero removes roll response. |
Ilyushin Il-18D Civil Airliner: 190 KIAS is the retained estimated tuning reference. It is not published cruise TAS, VNE, a new flight limit or a measured force threshold. Source-specific operating quantities remain attached to their original configuration and conditions.
| Setting | Starting value | What it controls and why |
|---|---|---|
| Force tuning speed/reference | Starting value190 kt | What it controls and whySets the IAS reference for aerodynamic loading. It is an estimate, not published cruise TAS or a flight limit. |
Manual control loading remains an estimate; four turboprops do not establish hydraulic primary-control boost.
| Setting | Starting value | What it controls and why |
|---|---|---|
| Profile force gain | Starting value0.8 | What it controls and whyThe aerodynamic-load gain is 0.8 with an indicated-speed reference of 190 KIAS. This supplies speed-dependent loading alongside the spring. |
Equipment scripts and cabin choices supply no qualified force events. Movement and primary-control gains remain estimates.
| Setting | Starting value | What it controls and why |
|---|---|---|
| Gain | Starting value0.12 | What it controls and whyEquipment scripts and cabin choices supply no qualified force events. Movement and primary-control gains remain estimates. |
| Gain | Starting value0.12 | What it controls and whyEquipment scripts and cabin choices supply no qualified force events. Movement and primary-control gains remain estimates. |
| Profile force gain | Starting value0.8 | What it controls and whyThe aerodynamic-load gain is 0.8 with an indicated-speed reference of 190 KIAS. This supplies speed-dependent loading alongside the spring. |
Exact configured values with software explanations. Force magnitudes remain editable estimates; disabled features retain inactive values.
| Setting | Starting value | What it controls and why |
|---|---|---|
| Spring deadband | Starting value0.045 | What it controls and whySets travel around the centre before the baseline spring resists. Smaller values engage it sooner. |
| Master force gain | Starting value0.85 | What it controls and whyScales overall profile strength while preserving effect balance, subject to device and output limits. |
| QBlend Enabled | Starting valueEnabled | What it controls and whyAllows baseline spring strength to rise with indicated airspeed where the control law permits it. |
| QSpring Minimum Factor | Starting value0.5 | What it controls and whySets low-speed spring strength as a fraction of baseline when blending is enabled. One keeps full strength. |
| QSpring Start Knots | Starting value26.6 kt | What it controls and whySets the IAS where the low-speed spring blend starts rising. This is a feel threshold, not a flight limit. |
| Spring response reference speed | Starting value95.0 kt | What it controls and whySets the IAS where the low-speed blend reaches baseline strength; high-speed stiffening also uses it. |
| Airspeed spring stiffening gain | Starting value0.15 | What it controls and whyThe high-speed spring-stiffening gain is 0.15. It strengthens the permitted spring response above 95 KIAS, with the squared-speed ratio capped at 5. |
| Airspeed spring stiffening limit | Starting value5 | What it controls and whyLimits the squared airspeed ratio used for high-speed spring stiffening; it is not a device-force cap. |
| Trim feel | Starting valueEnabled | What it controls and whyRetained for compatibility and group membership. Trim relief, rather than this flag, controls centre movement. |
| Trim relief | Starting valueEnabled | What it controls and whyAllows trim relief with supported control law and valid telemetry. Axis authorities set its amount. |
| Force Trim Enabled | Starting valueDisabled | What it controls and whyEnables local force trim, separate from aircraft-owned trim and add-on integration qualification. |
| GLoad Enabled | Starting valueEnabled | What it controls and whyAllows load-factor changes to modify permitted spring laws. Passive fly-by-wire feel can suppress it. |
| Rate Damping Enabled | Starting valueEnabled | What it controls and whyEnables rate damping with the configured coefficients and control law. |
| Autopilot follow | Starting valueDisabled | What it controls and whyAutopilot following is off; the configured spring and load retain the hardware feel. |
| Autopilot follow authority | Starting value0.1 | What it controls and whySets admitted AP-follow gain, not a percentage of travel. Runtime ownership and input limits still apply. |
| Autopilot neutral hold | Starting valueDisabled | What it controls and whyPermits centering hold during a supported AP state, separate from following a moving target. |
| Autopilot neutral hold strength | Starting value0.6 | What it controls and whySets admitted AP neutral-hold strength; inactive while neutral hold is disabled. |
| Enabled | Starting valueEnabled | What it controls and whyEnables aerodynamic cues; each still needs nonzero strength and its simulator conditions. |
| Gain | Starting value0.35 | What it controls and whySets stall-buffet strength. Zero removes the cue without changing simulator stalls or warnings. |
| Gain | Starting value0 | What it controls and whySets high-Mach buffet strength; onset and full-strength thresholds are separate. |
| Gain | Starting value0 | What it controls and whySets flap buffet at the configured position and speed gates. Flap movement texture is separate. |
| Maximum flap index | Starting value2 | What it controls and whySets the final flap index for detent normalization. UP plus three detents uses maximum index3. |
| Minimum flap index | Starting value2 | What it controls and whySets the first flap detent that admits buffet; this is a handle index, not degrees. |
| Gain | Starting value0 | What it controls and whySets gear aerodynamic buffet; movement and ground-contact cues are separate. |
| Shaker Enabled | Starting valueDisabled | What it controls and whyPermits shaker at supported warning conditions; the switch does not establish aircraft equipment. |
| Stick shaker amplitude | Starting value0.5 | What it controls and whySets triggered shaker strength; inactive while the shaker feature is disabled. |
| Enabled | Starting valueEnabled | What it controls and whyEnables ground effects; each still needs its own strength and contact or motion telemetry. |
| Gain | Starting value0.4 | What it controls and whySets rolling texture strength, modified by speed, surface and undercarriage configuration. |
| Gain | Starting value0.25 | What it controls and whySets gear-bump texture during ground motion, separate from touchdown impact. |
| Gain | Starting value0.65 | What it controls and whySets landing-impact strength; landing telemetry and response shape determine the pulse. |
| Gain | Starting value0 | What it controls and whySets reverse-thrust vibration with valid reverser and engine conditions. Zero removes the cue. |
| Enabled | Starting valueEnabled | What it controls and whyEnables engine cues with nonzero settings and valid running-engine telemetry. |
| Gain | Starting value0.12 | What it controls and whySets estimated engine vibration using configured telemetry and response, not measured cockpit vibration. |
| Enabled | Starting valueEnabled | What it controls and whyEnables accessory cues with configured strengths and observed accessory movement. |
Limits and open questions
- Ilyushin Il-18D Civil Airliner is a universal starting point; exact add-on matching, edition operation and physical hand-force calibration remain unqualified.
- Autopilot movement and unknown custom trim, failure or force-input signals are disabled. Confirm the selected equipment fit and trim direction for the implementation in use.
- Force magnitudes and speed tuning are editable inherited estimates. Owner physical and installed-aircraft acceptance remain pending.
Physical validation
No physical force validation is recorded in this public catalogue for this revision. Documentary review and software checks do not establish how a particular device feels.
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