Boeing Super 27-100
A rear-engined trijet built to bring jet service to shorter routes and smaller airports.
Aircraft and simulator scope
- Boeing Super 27-100 · MSFS 2020 · Variant starting point
- Boeing Super 27-100 · MSFS 2024 · Variant starting point
- Boeing Super 27-100 · X-Plane 12 · Variant starting point
Boeing Super 27-100 universal civil family/configuration. Documentary mechanism clauses keep the source's stated aircraft or family scope; simulator targets are Bridge selection scopes.
The simulator model and controls
A rear-engined trijet built to bring jet service to shorter routes and smaller airports.
How this profile feels
The spring stays independent of airspeed. A separate aerodynamic term adds speed-dependent control load.
Pitch-trim relief is off. Autopilot following is off.
Aircraft and configuration
The 727 control documentation describes hydraulically powered flight controls, hydraulic elevator feel computers, and spring-based aileron feel and centering.
Aileron trim repositions the control-wheel neutral point; pitch trim changes stabilizer angle, with column-neutral movement described only over a conditional stabilizer-trim range.
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
The 727 control documentation describes hydraulically powered flight controls, hydraulic elevator feel computers, and spring-based aileron feel and centering.
Aileron trim repositions the control-wheel neutral point; pitch trim changes stabilizer angle, with column-neutral movement described only over a conditional stabilizer-trim range.
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 rear-engined trijet built to bring jet service to shorter routes and smaller airports.
Flight controls
ReviewedA rear-engined trijet built to bring jet service to shorter routes and smaller airports.
Trim
ReviewedThe profile uses the trim behaviour configured below. Pitch relief is off, with stored authority 0; roll authority is 0.
Autopilot and stability
ReviewedAutopilot following is off; the configured spring and load retain the hardware feel.
Equipment
ReviewedThe 727 control documentation describes hydraulically powered flight controls, hydraulic elevator feel computers, and spring-based aileron feel and centering.
Speeds and limits
InheritedThe indicated-speed references set the profile response scale; they are separate from aircraft operating limits.
Simulator integration
Not yet 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 value0.8 | What it controls and whyThis profile uses powered-control feel for Boeing 727. The baseline spring is 0.8. Low-speed spring blending is off. |
| 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 value0.25 | What it controls and whyThe aerodynamic-load gain is 0.25 with an indicated-speed reference of 250 KIAS. The hydraulic-load factor of 0.45 scales that modeled term; it is a selected artificial-feel approximation. |
| Force tuning speed/reference | Starting value250 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 value70 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 value0.7 | What it controls and whyRoll and pitch aerodynamic scales are 0.7 and 0.86, respectively. They set the aerodynamic axis balance. No custom spring-travel curve is enabled. |
| Elevator force scale | Starting value0.86 | 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 valueDisabled | 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 value0.8 | What it controls and whyThis profile uses powered-control feel for Boeing 727. The baseline spring is 0.8. Low-speed spring blending is off. |
| Profile force gain | Starting value0.25 | What it controls and whyThe aerodynamic-load gain is 0.25 with an indicated-speed reference of 250 KIAS. The hydraulic-load factor of 0.45 scales that modeled term; it is a selected artificial-feel approximation. |
| Master force gain | Starting value0.85 | What it controls and whyScales overall profile strength while preserving effect balance, subject to device and output limits. |
| Output force limit | Starting value0.55 | What it controls and whyCaps directed-force output. Native spring effects and device limits remain separate. |
| Elevator force scale | Starting value0.86 | What it controls and whyScales pitch aerodynamic loading; pitch spring travel and trim responses are separate settings. |
| Aileron force scale | Starting value0.7 | What it controls and whyRoll and pitch aerodynamic scales are 0.7 and 0.86, respectively. They set the aerodynamic axis balance. No custom spring-travel curve is enabled. |
Boeing Super 27-100: 250 indicated knots is the inherited feel reference, not cruise TAS, a published flight limit or a measured force threshold.
| Setting | Starting value | What it controls and why |
|---|---|---|
| Force tuning speed/reference | Starting value250 kt | What it controls and whySets the IAS reference for aerodynamic loading. It is an estimate, not published cruise TAS or a flight limit. |
| QSpring Start Knots | Starting value20 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 value70 kt | What it controls and whySets the IAS where the low-speed blend reaches baseline strength; high-speed stiffening also uses it. |
Boeing Super 27-100: generic device trim feel, trim relief, force trim, hydraulic trim centering, autopilot following and neutral hold are disabled because portable state and neutral-motion contracts remain unqualified.
| Setting | Starting value | What it controls and why |
|---|---|---|
| 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 valueDisabled | 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. |
| 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. |
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 value0.04 | What it controls and whySets travel around the centre before the baseline spring resists. Smaller values engage it sooner. |
| QBlend Enabled | Starting valueDisabled | 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. |
| Airspeed spring stiffening gain | Starting value0 | What it controls and whyThe high-speed spring-stiffening gain is 0. No additional speed-driven stiffening is added; this does not disable independent aerodynamic loading. |
| 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. |
| Elevator Authority | Starting value0 | What it controls and whyThe profile uses the trim behaviour configured below. Pitch relief is off, with stored authority 0; 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. |
| 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 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 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 value0.3 | 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 value6 | 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 value0.9 | 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 value0.32 | What it controls and whySets gear-bump texture during ground motion, separate from touchdown impact. |
| Gain | Starting value0.9 | 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 value0.06 | 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 value0.12 | What it controls and whySets texture from observed gear movement, separate from aerodynamic and touchdown effects. |
Limits and open questions
- The primary mechanism source is727-family documentation;100-specific gearing and the conversion's force gradients are not published. Vendor buttons/display states are not portable force telemetry.
- Generic selection scope; installed add-on matching, custom states and device operation remain unqualified.
- Force magnitudes and cue amplitudes are inherited estimates; no physical calibration or certification is claimed.
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.