Start here
A few places to begin, from the aircraft’s story to the people who fly it.
Aircraft and configuration
X-Hangar's Sonex B package includes tricycle and tailwheel versions, a 100 hp Volkswagen-derived piston engine and electric flaps. The product is specific to X-Plane 12.
Sonex B Tailwheel
X-Hangar · Read more ↗Meet Sonex B Tailwheel
X-Hangar's Sonex B package includes tricycle and tailwheel versions, a 100 hp Volkswagen-derived piston engine and electric flaps. The product is specific to X-Plane 12.
History & design
The first major Sonex-family revision
The B-model range was introduced at Sun ’n Fun in April 2016. In his factory visit and flight report, Paul Dye describes it as the first major upgrade to the original Sonex/Waiex design, available with the Sonex’s conventional tail or the Waiex’s Y-tail.
Kitplanes / Paul Dye; archived by Sonex Aircraft · Waiex-B: firsthand flight evaluation and B-model development ↗Paul Dye factory visit and Waiex-B evaluation, Kitplanes May 2017; shared B-model development
More room drives the redesign
Removing the original fuselage taper between the seat and firewall made space for a wider engine installation and cockpit. A taller, vertical instrument panel accommodated larger displays. These were B-family changes; Dye’s flight evaluation itself used a Waiex-B, so its flying impressions are not a direct Sonex-B test.
Kitplanes / Paul Dye; archived by Sonex Aircraft · Waiex-B: firsthand flight evaluation and B-model development ↗Paul Dye factory visit and Waiex-B evaluation, Kitplanes May 2017; shared B-model development
Systems & details
Controls and equipment
Sonex's control-installation drawing shows mechanical pushrods and a control stick, an electric flap actuator and an elevator trim tab.
In your simulator
No released simulator product is listed for this aircraft in the developers reviewed. Announced products are excluded.
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.
Aircraft systems
Controls and equipmentSonex B Tailwheel
Sonex's control-installation drawing shows mechanical pushrods and a control stick, an electric flap actuator and an elevator trim tab.
Sonex B controls installation · SNB-C01 revision D
Sonex Aircraft · Read the source ↗Read the original documentation from the people who created it. Manuals open on their publisher’s website.
Simulator documentation
Sonex B Tailwheel — simulator documentationX-Hangar · Sonex B controls installation · SNB-C01 revision DAircraft documentation
Sonex B Tailwheel — aircraft documentationSonex Aircraft · Sonex B controls installation · SNB-C01 revision DAircraft history
Waiex-B: firsthand flight evaluation and B-model developmentKitplanes / Paul Dye; archived by Sonex Aircraft · Paul Dye factory visit and Waiex-B evaluation, Kitplanes May 2017; shared B-model developmentBuilt-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 · 4 profile choices
X-Hangar Sonex B tricycle
X-Hangar · Free and Pro · Revision 2 · Inherited starting point
X-Plane 12
A homebuilt light-aircraft family offered with tricycle or tailwheel gear.
X-Hangar Sonex B tailwheel
X-Hangar · Free and Pro · Revision 2 · Inherited starting point
X-Plane 12
A homebuilt light-aircraft family offered with tricycle or tailwheel gear.
Sonex B Tailwheel
Free and Pro · Revision 1 · Partial review
MSFS 2020 · MSFS 2024 · X-Plane 12
A homebuilt light-aircraft family offered with tricycle or tailwheel gear.
Sonex B Tricycle
Free and Pro · Revision 1 · Partial review
MSFS 2020 · MSFS 2024 · X-Plane 12
A homebuilt light-aircraft family offered with tricycle or tailwheel gear.
X-Hangar Sonex B tailwheel
A homebuilt light-aircraft family offered with tricycle or tailwheel gear.
Aircraft and simulator scope
- X-Hangar Sonex B tailwheel · X-Hangar · X-Plane 12 · Add-on starting point
The simulator model and controls
X-Hangar Sonex B tailwheel is the selected X-Hangar configuration.
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
X-Hangar's Sonex B package includes tricycle and tailwheel versions, a 100 hp Volkswagen-derived piston engine and electric flaps. The product is specific to X-Plane 12.
Controls and equipment
Sonex's control-installation drawing shows mechanical pushrods and a control stick, an electric flap actuator and an elevator trim tab.
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.
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
InheritedX-Hangar Sonex B tailwheel is the selected X-Hangar configuration.
Flight controls
InheritedA homebuilt light-aircraft family offered with tricycle or tailwheel gear.
Trim
InheritedSonex's control-installation drawing shows mechanical pushrods and a control stick, an electric flap actuator and an elevator trim tab. 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
InheritedX-Hangar's Sonex B package includes tricycle and tailwheel versions, a 100 hp Volkswagen-derived piston engine and electric flaps. The product is specific to X-Plane 12.
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 whySonex's control-installation drawing shows mechanical pushrods and a control stick, an electric flap actuator and an elevator trim tab. The baseline spring is 0.74. Its low-speed blend reaches baseline strength at 57.5 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 115 KIAS. This supplies speed-dependent loading alongside the spring. |
| Force tuning speed/reference | Starting value115 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 value57.5 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 value0.86 | What it controls and whyRoll and pitch aerodynamic scales are 0.86 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 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 whySonex's control-installation drawing shows mechanical pushrods and a control stick, an electric flap actuator and an elevator trim tab. The baseline spring is 0.74. Its low-speed blend reaches baseline strength at 57.5 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 115 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 value8 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 value57.5 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 value115 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 57.5 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 value0.86 | What it controls and whyRoll and pitch aerodynamic scales are 0.86 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. |
| 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 whySonex's control-installation drawing shows mechanical pushrods and a control stick, an electric flap actuator and an elevator trim tab. 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
- Manual control stick and pushrod linkage with q-dependent force estimate. The older Sport Trainer conversion is not the B-model control installation.
- Pitch-only tab relief estimate. No permanent pitch spring preload inferred from a rudder return spring or flap-handle compression spring.
- No qualified add-on AP output; follow and hold disabled.
- Selected XP12 edition only. Contact layout remains aircraft-owned; no arbitrary lateral-force difference between wheel versions.
- 115 KIAS is an estimated control-feel reference, not cruise TAS, V-speeds or an operating limit.
- Spring 0.74, lateral scale 0.86, trim relief 0.17/0; editable estimates, not measured hand forces.
- Physical and installed-aircraft checks are deferred. Save this profile as the aircraft default if telemetry omits its developer or configuration.
- Only actual accessory-position changes drive movement textures. No pressure-dependent failures, guessed servo outputs or input compensation.
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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