Boeing · Airliner

Boeing 737 family

Artificial pitch q-feel, spring-and-cam roll resistance, autopilot column following and a stick shaker.

Meet the aircraft

The first 737 flew in 1967. Boeing retained the six-abreast fuselage width familiar from its earlier jets while placing two engines under the wing. The aircraft subsequently developed through the Original, Classic, Next Generation and MAX generations.

Engines, displays and systems differ between the early 737-200, the 737-800 and the 737 MAX. Simulator products add another layer of variation, from bundled aircraft to specialist implementations with their own failures, options and documentation.

Read the full aircraft reference →

Catalogue programme-20261011-v3

FFB-BRIDGE BUILT-IN PROFILE

Boeing 737-800

Free and ProRevision 4Partial review

Artificial pitch q-feel, spring-and-cam roll resistance, autopilot column following and a stick shaker.

Aircraft and simulator scope

  • Boeing 737-800 · MSFS 2024 · family starting point
  • Boeing 737-800 · X-Plane 12 · family starting point
  • Boeing 737-800 · X-Plane 11 · family starting point
  • Boeing 737-800 · MSFS 2020 · family starting point

Compiled factory starter revision 4; documentary sources do not qualify every simulator add-on.

The simulator model and controls

The first 737 flew in 1967. Boeing retained the six-abreast fuselage width familiar from its earlier jets while placing two engines under the wing. The aircraft subsequently developed through the Original, Classic, Next Generation and MAX generations.

The factory starting point selects Boeing 737-800 across MSFS 2024, X-Plane 12, X-Plane 11, MSFS 2020.

How this profile feels

Spring resistance builds with the selected airspeed response. Directed aerodynamic loading is omitted.

Pitch-trim relief is off. Autopilot following is enabled for supported control references.

Controls and trim

The 737's aileron feel uses a cam, roller and spring-centering unit with breakout and gradient that stays constant with airspeed. Pitch artificial feel differs, so the total pitch-to-roll effort balance can change with speed. PMDG's NG introduction also distinguishes electric-trim limits by model and flap state, and CWS from CMD. Those NG details are not automatically MAX, Classic or early-737 interface evidence.

Pitch and roll feel

The aircraft’s documented roll spring is speed-independent. This revision uses a shared profile airspeed response where enabled; it does not provide a separate measured pitch-versus-roll feel schedule.

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.

What the documentation establishes

The aileron feel is purely spring — a cam, roller, and spring centering unit with a breakout-then-gradient shape that stays constant with airspeed. The real pitch-to-roll force ratio therefore grows with speed.

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
Reviewed

The factory starting point selects Boeing 737-800 across MSFS 2024, X-Plane 12, X-Plane 11, MSFS 2020.

Flight controls
Reviewed

The 737's aileron feel uses a cam, roller and spring-centering unit with breakout and gradient that stays constant with airspeed. Pitch artificial feel differs, so the total pitch-to-roll effort balance can change with speed. PMDG's NG introduction also distinguishes electric-trim limits by model and flap state, and CWS from CMD. Those NG details are not automatically MAX, Classic or early-737 interface evidence.

Trim
Not yet reviewed

Documented electric-trim limits vary with model and flap state; a selected trim response is a simplification and does not recreate every NG or MAX trim law. Pitch relief is off, with stored authority 0.3; roll authority is 0.09.

Autopilot and stability
Not yet reviewed

Following is on at 1 authority when a supported, valid autopilot control reference is available.

Equipment
Reviewed

Gear, flap and ground cues follow the selected settings and available simulator-reported states.

Speeds and limits
Not yet reviewed

The indicated-speed references set the profile response scale; they are separate from aircraft operating limits.

Simulator integration
Not yet reviewed

The profile targets msfs2024, xplane12, xplane11, msfs2020. Add-on-specific controls use only the supported references configured by this profile.

Force-feedback settings
Not yet reviewed

The 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.

Estimated starting settings · revision 4
SettingStarting valueWhat it controls and why
Spring strengthStarting value0.2 What it controls and whyThe fixed roll-feel mechanism and separate pitch artificial feel motivate distinct axis balance; an aerodynamic scale alone cannot describe total pitch/roll effort. The baseline spring is 0.2. Low-speed spring blending is off.
Master force gainStarting value1 What it controls and whyScales overall profile strength while preserving effect balance, subject to device and output limits.
Profile force gainStarting value0 What it controls and whyThe 0 gain omits sustained directed airspeed loading. Spring resistance remains independent.
Force tuning speed/referenceStarting value280 ktWhat 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 speedStarting value122 ktWhat it controls and whySets the IAS where the low-speed blend reaches baseline strength; high-speed stiffening also uses it.
Aileron force scaleStarting value1.8 What it controls and whyRoll and pitch aerodynamic scales are 1.8 and 0.9, respectively. These stored weights do not create directed aerodynamic loading while that term is inactive. No custom spring-travel curve is enabled.
Elevator force scaleStarting value0.9 What it controls and whyScales pitch aerodynamic loading; pitch spring travel and trim responses are separate settings.
Trim feelStarting valueDisabled What it controls and whyRetained for compatibility and group membership. Trim relief, rather than this flag, controls centre movement.
Trim reliefStarting valueDisabled What it controls and whyAllows trim relief with supported control law and valid telemetry. Axis authorities set its amount.
Autopilot followStarting valueEnabled What it controls and whyFollowing is on at 1 authority when a supported, valid autopilot control reference is available.
Autopilot neutral holdStarting valueDisabled What it controls and whyPermits centering hold during a supported AP state, separate from following a moving target.
Output force limitStarting value0.7 What it controls and whyCaps directed-force output. Native spring effects and device limits remain separate.
All 49 starting settings and their rationale

The settings define the profile’s effect balance. Device output limits affect physical hand force.

Estimated starting settings · revision 4
SettingStarting valueWhat it controls and why
Spring strengthStarting value0.2 What it controls and whyThe fixed roll-feel mechanism and separate pitch artificial feel motivate distinct axis balance; an aerodynamic scale alone cannot describe total pitch/roll effort. The baseline spring is 0.2. Low-speed spring blending is off.
Spring deadbandStarting value0 What it controls and whySets travel around the centre before the baseline spring resists. Smaller values engage it sooner.
Starting centering forceStarting value0.08 What it controls and whyAdds smoothly ramped resistance outside the centre deadband. Zero removes this preload.
Profile force gainStarting value0 What it controls and whyThe 0 gain omits sustained directed airspeed loading. Spring resistance remains independent.
Master force gainStarting value1 What it controls and whyScales overall profile strength while preserving effect balance, subject to device and output limits.
Spring response reference speedStarting value122 ktWhat it controls and whySets the IAS where the low-speed blend reaches baseline strength; high-speed stiffening also uses it.
Airspeed spring stiffening gainStarting value1 What it controls and whyThe high-speed spring-stiffening gain is 1. It strengthens the permitted spring response above 122 KIAS, with the squared-speed ratio capped at 7.8.
Airspeed spring stiffening limitStarting value7.8 What it controls and whyLimits the squared airspeed ratio used for high-speed spring stiffening; it is not a device-force cap.
Aileron force scaleStarting value1.8 What it controls and whyRoll and pitch aerodynamic scales are 1.8 and 0.9, respectively. These stored weights do not create directed aerodynamic loading while that term is inactive. No custom spring-travel curve is enabled.
Elevator force scaleStarting value0.9 What it controls and whyScales pitch aerodynamic loading; pitch spring travel and trim responses are separate settings.
Output force limitStarting value0.7 What it controls and whyCaps directed-force output. Native spring effects and device limits remain separate.
Autopilot followStarting valueEnabled What it controls and whyFollowing is on at 1 authority when a supported, valid autopilot control reference is available.
Autopilot follow authorityStarting value1 What it controls and whySets admitted AP-follow gain, not a percentage of travel. Runtime ownership and input limits still apply.
Autopilot neutral holdStarting valueDisabled What it controls and whyPermits centering hold during a supported AP state, separate from following a moving target.
Autopilot neutral hold strengthStarting value0.6 What it controls and whySets admitted AP neutral-hold strength; inactive while neutral hold is disabled.
Trim feelStarting valueDisabled What it controls and whyRetained for compatibility and group membership. Trim relief, rather than this flag, controls centre movement.
Trim reliefStarting valueDisabled What it controls and whyAllows trim relief with supported control law and valid telemetry. Axis authorities set its amount.
Maximum flap indexStarting value8 What it controls and whySets the final flap index for detent normalization. UP plus three detents uses maximum index3.
Minimum flap indexStarting value1 What it controls and whySets the first flap detent that admits buffet; this is a handle index, not degrees.
Stick shaker amplitudeStarting value0.9 What it controls and whySets triggered shaker strength; inactive while the shaker feature is disabled.

Exact configured values with software explanations. Force magnitudes remain editable estimates; disabled features retain inactive values.

Estimated starting settings · revision 4
SettingStarting valueWhat it controls and why
Center Starting Force TransitionStarting value0.05 What it controls and whySets the travel used to ramp in centre preload. Wider intervals make its onset more gradual.
QBlend EnabledStarting valueDisabled What it controls and whyAllows baseline spring strength to rise with indicated airspeed where the control law permits it.
QSpring Minimum FactorStarting 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 KnotsStarting value0 ktWhat it controls and whySets the IAS where the low-speed spring blend starts rising. This is a feel threshold, not a flight limit.
Force tuning speed/referenceStarting value280 ktWhat it controls and whySets the IAS reference for aerodynamic loading. It is an estimate, not published cruise TAS or a flight limit.
Travel EnabledStarting valueDisabled What it controls and whyApplies the configured pitch and roll spring travel curves.
OutputStarting value1 What it controls and whySets response at the second pitch-curve point; it is an endpoint only if its input position is full travel.
OutputStarting value1 What it controls and whySets response at the second roll-curve point; its input position and other points determine the travel law.
Elevator AuthorityStarting value0.3 What it controls and whyDocumented electric-trim limits vary with model and flap state; a selected trim response is a simplification and does not recreate every NG or MAX trim law. Pitch relief is off, with stored authority 0.3; roll authority is 0.09.
Aileron AuthorityStarting value0.09 What it controls and whyScales supported roll-trim relief and permitted centre movement. Zero removes roll response.
Force Trim EnabledStarting valueDisabled What it controls and whyEnables local force trim, separate from aircraft-owned trim and add-on integration qualification.
GLoad EnabledStarting valueDisabled What it controls and whyAllows load-factor changes to modify permitted spring laws. Passive fly-by-wire feel can suppress it.
Rate Damping EnabledStarting valueDisabled What it controls and whyEnables rate damping with the configured coefficients and control law.
EnabledStarting valueEnabled What it controls and whyEnables aerodynamic cues; each still needs nonzero strength and its simulator conditions.
GainStarting value0.3 What it controls and whySets stall-buffet strength. Zero removes the cue without changing simulator stalls or warnings.
GainStarting value0.44 What it controls and whySets high-Mach buffet strength; onset and full-strength thresholds are separate.
GainStarting value0.36 What it controls and whySets flap buffet at the configured position and speed gates. Flap movement texture is separate.
GainStarting value0.38 What it controls and whySets gear aerodynamic buffet; movement and ground-contact cues are separate.
Shaker EnabledStarting valueEnabled What it controls and whyPermits shaker at supported warning conditions; the switch does not establish aircraft equipment.
EnabledStarting valueEnabled What it controls and whyEnables ground effects; each still needs its own strength and contact or motion telemetry.
GainStarting value0.4 What it controls and whySets rolling texture strength, modified by speed, surface and undercarriage configuration.
GainStarting value0.32 What it controls and whySets gear-bump texture during ground motion, separate from touchdown impact.
GainStarting value0.9 What it controls and whySets landing-impact strength; landing telemetry and response shape determine the pulse.
GainStarting value0.5 What it controls and whySets reverse-thrust vibration with valid reverser and engine conditions. Zero removes the cue.
EnabledStarting valueEnabled What it controls and whyEnables engine cues with nonzero settings and valid running-engine telemetry.
GainStarting value0.11 What it controls and whySets estimated engine vibration using configured telemetry and response, not measured cockpit vibration.
EnabledStarting valueEnabled What it controls and whyEnables accessory cues with configured strengths and observed accessory movement.
GainStarting value0.34 What it controls and whySets texture from observed flap movement; a command without movement does not establish the cue.
GainStarting value0.18 What it controls and whySets texture from observed gear movement, separate from aerodynamic and touchdown effects.
Limits and open questions
  • Physical force validation is not established for the current revision by documentary review.
  • Generic simulator telemetry and configured control responses require the stated aircraft and device scope.

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.

FFB-Bridge maintains this profile’s revisions and tuning discussion.

Revision 4 and download availability in FFB-Bridge ↗
Exact profile identity
Profile
b737800
Artifact SHA-256
7da3ce27ea6738019f83235c03bf22b6d3f3450592ac0b4607693209b808518e
Bytes
11901
Spring strength
Forces.SpringStrength
Spring deadband
Forces.SpringDeadband
Starting centering force
Forces.CenterStartingForce
Profile force gain
Forces.ForceGain
Master force gain
Forces.MasterGain
Spring response reference speed
Forces.QSpringFullKnots
Airspeed spring stiffening gain
Forces.SpringAirspeedStiffenGain
Airspeed spring stiffening limit
Forces.SpringAirspeedStiffenCap
Aileron force scale
Forces.AileronForceScale
Elevator force scale
Forces.ElevatorForceScale
Output force limit
Forces.MaxOutputForce
Autopilot follow
Autopilot.FollowEnabled
Autopilot follow authority
Autopilot.FollowAuthority
Autopilot neutral hold
Autopilot.NeutralHoldEnabled
Autopilot neutral hold strength
Autopilot.NeutralHoldStrength
Trim feel
StickFeel.TrimFeelEnabled
Trim relief
StickFeel.TrimReliefEnabled
Maximum flap index
Aero.Flap.MaxFlapIndex
Minimum flap index
Aero.Flap.MinFlapIndex
Stick shaker amplitude
Aero.Shaker.Amplitude
Center Starting Force Transition
Forces.CenterStartingForceTransition
QBlend Enabled
Forces.QBlendEnabled
QSpring Minimum Factor
Forces.QSpringMinimumFactor
QSpring Start Knots
Forces.QSpringStartKnots
Force tuning speed/reference
Forces.CruiseSpeedRefKnots
Travel Enabled
SpringResponse.TravelEnabled
Output
SpringResponse.Pitch.Points.1.Output
Output
SpringResponse.Roll.Points.1.Output
Elevator Authority
StickFeel.TrimRelief.ElevatorAuthority
Aileron Authority
StickFeel.TrimRelief.AileronAuthority
Force Trim Enabled
StickFeel.ForceTrimEnabled
GLoad Enabled
StickFeel.GLoadEnabled
Rate Damping Enabled
StickFeel.RateDampingEnabled
Enabled
Aero.Enabled
Gain
Aero.Stall.Gain
Gain
Aero.Mach.Gain
Gain
Aero.Flap.Gain
Gain
Aero.Gear.Gain
Shaker Enabled
Aero.ShakerEnabled
Enabled
Ground.Enabled
Gain
Ground.Rumble.Gain
Gain
Ground.Bumps.Gain
Gain
Ground.Thump.Gain
Gain
Ground.Reverse.Gain
Enabled
Engine.Enabled
Gain
Engine.Rumble.Gain
Enabled
Mechanical.Enabled
Gain
Mechanical.FlapMotion.Gain
Gain
Mechanical.GearMotion.Gain