Start here
A few places to begin, from the aircraft’s story to the people who fly it.
Meet the aircraft
Aeropro’s EuroFOX has an enclosed side-by-side cockpit and folding wings. The Slovak design is offered with either tricycle or tailwheel landing gear; in North America those layouts are marketed as the Aerotrek 240 and 220. VSKYLABS includes tricycle, conventional tailwheel and large-tyre tailwheel versions.
Aircraft background
VSKYLABS · Read more ↗Released product and variants
The package includes tricycle, conventional tailwheel and tundra-tyre tailwheel aircraft. VSKYLABS identifies these with the Aerotrek 240, 220 and 220 STOL names and models a 100 hp Rotax 912 installation.
EuroFOX / Aerotrek · VSKYLABS · X-Plane 11 · X-Plane 12
VSKYLABS · Read more ↗Into the cockpit
YouTube Dark Lord · 15 min ·
Introduction to the EuroFOX (Aeropro) Microlight Light Aircraft
An owner explains his EuroFOX 912iS, including folding wings, storage and cockpit features.
Real aircraft · Aeropro EuroFOX
Watch on YouTube ↗Preview images are served by AirframeDB. Videos open on YouTube only when you choose to watch.
Meet Aeropro EuroFOX
Aeropro’s EuroFOX has an enclosed side-by-side cockpit and folding wings. The Slovak design is offered with either tricycle or tailwheel landing gear; in North America those layouts are marketed as the Aerotrek 240 and 220.
VSKYLABS includes tricycle, conventional tailwheel and large-tyre tailwheel versions. All three simulated variants use a 100 hp Rotax 912 installation, with the cockpit and flight model built around X-Plane’s native aircraft systems.
Aeropro EuroFOX
Aeropro → · Explore the family →
Aeropro EuroFOX
VSKYLABS · VSKYLABS Aerospace Simulations Aircraft Center: VSKYLABS Aeropro EuroFOX ↗EuroFOX tricycle / Aerotrek 240
VSKYLABS · VSKYLABS Aerospace Simulations Aircraft Center: VSKYLABS Aeropro EuroFOX ↗VSKYLABS · X-Plane 11 · X-Plane 12 →EuroFOX tailwheel / Aerotrek 220
VSKYLABS · VSKYLABS Aerospace Simulations Aircraft Center: VSKYLABS Aeropro EuroFOX ↗VSKYLABS · X-Plane 11 · X-Plane 12 →EuroFOX tundra tyres / Aerotrek 220 STOL
VSKYLABS · VSKYLABS Aerospace Simulations Aircraft Center: VSKYLABS Aeropro EuroFOX ↗VSKYLABS · X-Plane 11 · X-Plane 12 →Aircraft type designators
Use the code for the model you are flying. The linked authority lists the applicable aircraft.
History & design
An Avid-inspired starting point
Aeropro dates the Fox project to 1990 and identifies the Avid Flyer as its starting concept. Refinements produced a side-by-side, high-wing tailwheel aircraft. The company was established in 1992 to build it, grounding the EuroFOX story in a small Slovak manufacturer rather than a new name for a single simulator model.
Aeropro · Aeropro: development of the Fox and EuroFOX ↗Manufacturer history, development and company formation
The EuroFOX name and export development
The manufacturer records Slovak production and repair approvals in 1995, followed by use of the Eurofox name for export. Continued development retained the compact two-seat format while expanding equipment and undercarriage choices.
Aeropro · Aeropro: development of the Fox and EuroFOX ↗Manufacturer history; family equipment described separately
Systems & details
The flap and roll functions share a surface
Dual sticks operate the elevator and ailerons through rods; the rudder uses cables. A mixer combines flap and lateral commands at the flaperons. This explains the linked flap/roll arrangement, without establishing a measured stick-force curve.
The undercarriage changes the ground story
The 2K has a steerable tailwheel; the 3K has a steerable nosewheel. Both use fixed main gear. Ground handling depends on the selected variant, while retracting-gear motion is absent.
Folding wings are part of the design
Hinges and the strut arrangement let the wings fold beside the fuselage for storage or transport. The construction combines a steel-tube fuselage with fabric-covered wings.
In your simulator
Systems, equipment and documentation for each developer’s aircraft.
X-Plane 11 · X-Plane 12EuroFOX / Aerotrek
VSKYLABS · Released
EuroFOX / Aerotrek
VSKYLABS · 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.
Simulator documentation
Released product and variantsEuroFOX / Aerotrek · VSKYLABS · X-Plane 11 · X-Plane 12
The package includes tricycle, conventional tailwheel and tundra-tyre tailwheel aircraft. VSKYLABS identifies these with the Aerotrek 240, 220 and 220 STOL names and models a 100 hp Rotax 912 installation.
Official developer / designated-store reference · checked 2026-09-14
VSKYLABS · Read the source ↗Read the original documentation from the people who created it. Manuals open on their publisher’s website.
Developer documentation
VSKYLABS Aerospace Simulations Aircraft Center: VSKYLABS Aeropro EuroFOXVSKYLABS · Official developer / designated-store reference · checked 2026-09-14 VSKYLABS Aeropro EuroFOX add-on for X-Plane Flight Simulator.VSKYLABS · Official developer / designated-store reference · checked 2026-09-14Type designator
ICAO Doc 8643 — aircraft type designatorsInternational Civil Aviation Organization · Public search data retrieved 2026-09-14; authority update 2026-09-03Manufacturer or official developer documentation
EuroFOX construction, controls and specificationsAeropro · Manufacturer family reference; engine and approval options vary Aeropro: development of the Fox and EuroFOXAeropro · Manufacturer development history, checked 12 October 2026Built-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-20261022-v1 · 5 profile choices
VSKYLABS Aeropro EuroFOX A220
VSKYLABS · Free and Pro · Revision 3 · Inherited starting point
X-Plane 12
VSKYLABS Aeropro EuroFOX A220: The flaperon mixer connects lateral control and flap function; the profile approximates the resulting reversible stick resistance.
VSKYLABS Aeropro EuroFOX A220 STOL
VSKYLABS · Free and Pro · Revision 3 · Inherited starting point
X-Plane 12
VSKYLABS Aeropro EuroFOX A220 STOL: The flaperon mixer connects lateral control and flap function; the profile approximates the resulting reversible stick resistance.
VSKYLABS Aeropro EuroFOX A240
VSKYLABS · Free and Pro · Revision 3 · Inherited starting point
X-Plane 12
VSKYLABS Aeropro EuroFOX A240: The flaperon mixer connects lateral control and flap function; the profile approximates the resulting reversible stick resistance.
Aeropro EuroFOX
Free and Pro · Revision 2 · Inherited starting point
X-Plane 12 · X-Plane 11
Aeropro EuroFOX: The flaperon mixer connects lateral control and flap function; the profile approximates the resulting reversible stick resistance.
Aeropro EuroFOX (tricycle)
Free and Pro · Revision 1 · Partial review
X-Plane 12 · X-Plane 11
Aeropro EuroFOX (tricycle): The flaperon mixer connects lateral control and flap function; the profile approximates the resulting reversible stick resistance.
VSKYLABS Aeropro EuroFOX A220 STOL
VSKYLABS Aeropro EuroFOX A220 STOL: The flaperon mixer connects lateral control and flap function; the profile approximates the resulting reversible stick resistance.
Aircraft and simulator scope
- VSKYLABS Aeropro EuroFOX A220 STOL · VSKYLABS · X-Plane 12 · Add-on starting point
The simulator model and controls
Aeropro’s EuroFOX has an enclosed side-by-side cockpit and folding wings. The Slovak design is offered with either tricycle or tailwheel landing gear; in North America those layouts are marketed as the Aerotrek 240 and 220.
This profile selects VSKYLABS Aeropro EuroFOX A220 STOL for X-Plane 12.
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.
Controls and trim
The EuroFOX combines manual controls with a flaperon mixer. The manufacturer documents adjustable elevator trim, while the aileron tabs are fixed. Aerotrek A220 denotes the tailwheel layout and A240 the tricycle layout. VSKYLABS also supplies a large-tyre A220 STOL configuration. These undercarriages distinguish ground contact; they do not themselves establish different primary-control forces.
The selected implementation
The A220 STOL selects large-tyre tailwheel gear without an invented tyre-pressure signal; the Rotax/flaperon architecture stays shared.
About the values
The gains are normalized profile settings. They describe the chosen effect balance; hand force depends on the device and its output limits. IAS references are tuning values rather than operating limits. Physical acceptance of this revision remains pending.
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
InheritedThis profile selects VSKYLABS Aeropro EuroFOX A220 STOL for X-Plane 12.
Flight controls
InheritedThe EuroFOX combines manual controls with a flaperon mixer. The manufacturer documents adjustable elevator trim, while the aileron tabs are fixed. Aerotrek A220 denotes the tailwheel layout and A240 the tricycle layout. VSKYLABS also supplies a large-tyre A220 STOL configuration. These undercarriages distinguish ground contact; they do not themselves establish different primary-control forces.
Trim
InheritedThe adjustable elevator tab supports pitch relief. Fixed aileron tabs are not a pilot-operated roll-trim channel. Pitch authority 0.3 provides load relief and permitted centre movement; roll authority is 0.
Autopilot and stability
InheritedAutopilot following is off; the configured spring and load retain the hardware feel.
Equipment
InheritedThe A220 STOL selects large-tyre tailwheel gear without an invented tyre-pressure signal; the Rotax/flaperon architecture stays shared.
Speeds and limits
InheritedThe indicated-speed references set the profile response scale; they are separate from aircraft operating limits.
Simulator integration
InheritedThe profile targets 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 whyThe flaperon mixer connects lateral control and flap function; the profile approximates the resulting reversible stick resistance. The baseline spring is 0.74. Its low-speed blend reaches baseline strength at 45 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 85 KIAS. This supplies speed-dependent loading alongside the spring. |
| Force tuning speed/reference | Starting value85 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 value45 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 value1.0 | What it controls and whyScales pitch aerodynamic loading; pitch spring travel and trim responses are separate settings. |
| Trim feel | Starting valueDisabled | 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. |
| Autopilot neutral hold | Starting valueDisabled | What it controls and whyPermits centering hold during a supported AP state, separate from following a moving target. |
| Output force limit | Starting value0.55 | What it controls and whyCaps directed-force output. Native spring effects and device limits remain separate. |
All 44 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 whyThe flaperon mixer connects lateral control and flap function; the profile approximates the resulting reversible stick resistance. The baseline spring is 0.74. Its low-speed blend reaches baseline strength at 45 KIAS. |
| Spring deadband | Starting value0.04 | What it controls and whySets travel around the centre before the baseline spring resists. Smaller values engage it sooner. |
| Profile force gain | Starting value0.8 | What it controls and whyThe aerodynamic-load gain is 0.8 with an indicated-speed reference of 85 KIAS. This supplies speed-dependent loading alongside the spring. |
| 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 value0.55 | 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 value10 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 value45 kt | What it controls and whySets the IAS where the low-speed blend reaches baseline strength; high-speed stiffening also uses it. |
| Force tuning speed/reference | Starting value85 kt | What it controls and whySets the IAS reference for aerodynamic loading. It is an estimate, not published cruise TAS or a flight limit. |
| 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 45 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. |
| 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 value1.0 | What it controls and whyScales pitch aerodynamic loading; pitch spring travel and trim responses are separate settings. |
| Output force limit | Starting value0.55 | What it controls and whyCaps directed-force output. Native spring effects and device limits remain separate. |
| Trim feel | Starting valueDisabled | 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. |
| Elevator Authority | Starting value0.3 | What it controls and whyThe adjustable elevator tab supports pitch relief. Fixed aileron tabs are not a pilot-operated roll-trim channel. Pitch authority 0.3 provides load relief and permitted centre movement; roll authority is 0. |
| Aileron Authority | Starting value0 | What it controls and whyScales supported roll-trim relief and permitted centre movement. Zero removes roll response. |
| 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 value3 | 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. |
| Gain | Starting value0.12 | What it controls and whySets texture from observed flap movement; a command without movement does not establish the cue. |
| Gain | Starting value0 | What it controls and whySets texture from observed gear movement, separate from aerodynamic and touchdown effects. |
Limits and open questions
- Current XP12 v9.0.1 has 100hp Rotax912 versions. Va95/Vne124/Vfe81 and stall36/43 are published IAS, not hardware force stops. Experimental LSA AP servo outputs remain unqualified.
- Physical and installed-aircraft acceptance deferred. Gains, damping, frequency envelopes and airspeed references are estimates.
- No unqualified AP following, trim actuator demand, failure behavior or dynamic equipment detection.
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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