Start here
A few places to begin, from the aircraft’s story to the people who fly it.
Aircraft and simulator background
The DoubleEnder configuration in Got Friends' manual places two Rotax engines on the same longitudinal line. It uses 35-inch tyres and a free-castering tailwheel. Pitch trim moves the horizontal stabiliser.
DoubleEnder
Got Friends · Read more ↗Flap area and spoileron interlock
The second handle position extends flap area without changing the angle and locks the spoilerons. The remaining settings are 0, 20, 40 and 60 degrees. This area change is a separate part of the high-lift arrangement.
DoubleEnder
Got Friends · Read more ↗Trim and ground configuration
Pitch trim moves the horizontal stabiliser. Inline Rotax engines, 35-inch tyres and a free-castering tailwheel define the represented configuration, with an optional Type 400A flight director.
DoubleEnder
Got Friends · Read more ↗Compatibility and navigation updates
The v1.0.6 notes record MSFS 2024 compatibility, WTT GTN650 support and autopilot/navigation fixes.
DoubleEnder
Developer content; publisher or attributed mirror as URL · Read more ↗Meet DoubleEnder
The DoubleEnder configuration in Got Friends' manual places two Rotax engines on the same longitudinal line. It uses 35-inch tyres and a free-castering tailwheel. Pitch trim moves the horizontal stabiliser.
Its flap handle has an area-extension position that does not change flap angle and locks the spoilerons. The other positions are 0, 20, 40 and 60 degrees. Optional Type 400A flight-director equipment accompanies the cockpit.
DoubleEnder
DoubleEnder → · Explore the family →
DoubleEnder
Got Friends · DoubleEnder Download original download ↗Aircraft type designators
No type designator selected for this reference.
History & design
From Super Cub to twin-engine bush aircraft
The DoubleEnder grew through successive revisions from a Piper PA-18 Super Cub into a purpose-built backcountry aircraft. Its two Rotax engines use a tractor-and-pusher arrangement, while automatic leading-edge slats, large spoilerons and a freely castoring tailwheel serve the short-field role. The extensive glazing gives the pilot a view of the landing area that is central to the design. Got Friends brought the aircraft to MSFS after its Wilga project, carrying forward its wear and environmental-interaction systems.
Developer · DoubleEnder – Got Friends ↗Got Friends describes the physical design lineage and, separately, the development of its simulation.
Systems & details
Flap area and spoileron interlock
The second handle position extends flap area without changing the angle and locks the spoilerons. The remaining settings are 0, 20, 40 and 60 degrees. This area change is a separate part of the high-lift arrangement.
Trim and ground configuration
Pitch trim moves the horizontal stabiliser. Inline Rotax engines, 35-inch tyres and a free-castering tailwheel define the represented configuration, with an optional Type 400A flight director.
Compatibility and navigation updates
The v1.0.6 notes record MSFS 2024 compatibility, WTT GTN650 support and autopilot/navigation fixes.
In your simulator
Systems, equipment and documentation for each developer’s aircraft.
MSFS 2020 · MSFS 2024Got Friends DoubleEnder
Got Friends · Released
Got Friends DoubleEnder
Got Friends · 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
DoubleEnder Download original downloadDoubleEnder
PDF2/4/16/20; PDF20 image reviewed
Got Friends · Read the source ↗DoubleEnder – Got FriendsDoubleEnder
Product description and feature list
Developer · Read the source ↗Current Got Friends avionics enhancement prerequisitesDoubleEnder
Product description and feature list
Got Friends · Read the source ↗Developer legacy compatibility updateDoubleEnder
DoubleEnder v1.0.6
Developer content; publisher or attributed mirror as URL · Read the source ↗Read the original documentation from the people who created it. Manuals open on their publisher’s website.
Developer documentation
DoubleEnder Download original downloadGot Friends · PDF2/4/16/20; PDF20 image reviewed DoubleEnder – Got FriendsDeveloper · Product description and feature list Current Got Friends avionics enhancement prerequisitesGot Friends · Product description and feature list Developer legacy compatibility updateDeveloper content; publisher or attributed mirror as URL · DoubleEnder v1.0.6Built-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
Got Friends DoubleEnder
Got Friends · Free and Pro · Revision 5 · Inherited starting point
MSFS 2020 · MSFS 2024
An inline twin-Rotax utility aircraft with large tyres and a movable-stabiliser trim system.
DoubleEnder
Free and Pro · Revision 1 · Partial review
MSFS 2020 · MSFS 2024 · X-Plane 12
An inline twin-Rotax utility aircraft with large tyres and a movable-stabiliser trim system.
DoubleEnder
An inline twin-Rotax utility aircraft with large tyres and a movable-stabiliser trim system.
Aircraft and simulator scope
- DoubleEnder · MSFS 2020 · Variant starting point
- DoubleEnder · MSFS 2024 · Variant starting point
- DoubleEnder · 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
An inline twin-Rotax utility aircraft with large tyres and a movable-stabiliser trim system.
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
Fixed 35-inch tires, two Rotax 916 installations with governed propellers and the documented flap-position schedule.
Flap area and spoileron interlock
The second handle position extends flap area without changing the angle and locks the spoilerons. The remaining settings are 0, 20, 40 and 60 degrees. This area change is a separate part of the high-lift arrangement.
Trim and ground configuration
Pitch trim moves the horizontal stabiliser. Inline Rotax engines, 35-inch tyres and a free-castering tailwheel define the represented configuration, with an optional Type 400A flight director.
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
DoubleEnder: Fixed 35-inch tires, two Rotax 916 installations with governed propellers and the documented flap-position schedule.
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
ReviewedAn inline twin-Rotax utility aircraft with large tyres and a movable-stabiliser trim system.
Flight controls
InheritedAn inline twin-Rotax utility aircraft with large tyres and a movable-stabiliser trim system.
Trim
InheritedPitch trim: Moving horizontal stabiliser. Pitch authority 0.3 provides load relief and permitted centre movement; roll authority is 0.
Autopilot and stability
ReviewedAutopilot following is off; the configured spring and load retain the hardware feel.
Equipment
InheritedFixed 35-inch tires, two Rotax 916 installations with governed propellers and the documented flap-position schedule.
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 whyThe second handle position extends flap area without changing the angle and locks the spoilerons. The baseline spring is 0.74. Its low-speed blend reaches baseline strength at 55 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 90 KIAS. This supplies speed-dependent loading alongside the spring. |
| Force tuning speed/reference | Starting value90 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 value55 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 value0.8 | What it controls and whyRoll and pitch aerodynamic scales are 0.8 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 whyThe second handle position extends flap area without changing the angle and locks the spoilerons. The baseline spring is 0.74. Its low-speed blend reaches baseline strength at 55 KIAS. |
| Profile force gain | Starting value0.8 | What it controls and whyThe aerodynamic-load gain is 0.8 with an indicated-speed reference of 90 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 value0.8 | What it controls and whyRoll and pitch aerodynamic scales are 0.8 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. |
DoubleEnder: Physical stabilizer motion and normalized simulator trim are not assumed equal angles. Estimated pitch/roll trim authorities 0.3/0; 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 whyPitch trim: Moving horizontal stabiliser. 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. |
DoubleEnder: 90 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 value90 kt | What it controls and whySets the IAS reference for aerodynamic loading. It is an estimate, not published cruise TAS or a flight limit. |
A flap-area/detent description does not establish a detent-force impulse or hydraulic load. Movement texture remains an estimate.
| Setting | Starting value | What it controls and why |
|---|---|---|
| Gain | Starting value0.12 | What it controls and whyA flap-area/detent description does not establish a detent-force impulse or hydraulic load. Movement texture remains an estimate. |
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. |
| 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 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 value55 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 55 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 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. |
| 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 | What it controls and whySets texture from observed gear movement, separate from aerodynamic and touchdown effects. |
Limits and open questions
- DoubleEnder 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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