GMC 705-style autopilot controller
The GFC 700's stand-alone mode controller as fitted on the console of a Cirrus with Perspective avionics: mode keys with lit triangles, the boxed AP key, blue LVL and the DN / UP pitch wheel. It drives the simulator's autopilot modes from the iPad; the Perspective+ GMC 707 is the second model.
- Modeled on
- Garmin GMC 705-style (GFC 700 mode controller, Cirrus Perspective)
- Category
- Autopilots
- Size
- 2 × 1 cells
- Version
- 1.0 · 2026-10-19
- Plan
- Pro
- Simulators
- MSFS 2020 · MSFS 2024 · X-Plane 11 · X-Plane 12
Variants
GMC 705 (Perspective)v1.0
Keys only: HDG, NAV, APR | AP, LVL, FD, YD | the wheel | FLC, ALT, VS, VNV; four screws, white dividers
Picker: MODEL > GMC 705 (Perspective)
GMC 707 (Perspective+)v1.0
Larger keys between an HDG knob and an ALT SEL knob (both PUSH SYNC); no YD key
Picker: MODEL > GMC 707 (Perspective+)
Features
- A small triangle over each key that glows green while its mode is engaged
- Boxed AP key, LVL key with its blue ring (blue-level mode)
- HDG, NAV, APR, AP, LVL, FD, YD, FLC, ALT, VS and VNV keys, each toggling its mode
- Ribbed pitch wheel in its slot with the DN / UP arrow; it visibly rolls as you drag it
- The real unit's typeface on the keys; keys press down with a click
- At night the faceplate and keys take the red flood light; the mode triangles keep their own color, dimmed
- Thin 2 x 1 unit: stackable with another thin module or rackable
On the iPad
- Tap a key to toggle its mode (AP engages or disengages the autopilot)
- Drag the wheel up (toward DN) for nose down, down (toward UP) for nose up: one step per rib
- Tap the top half of the wheel for one step DN, the bottom half for one step UP
Settings
- Model: GMC 705 (Perspective) or GMC 707 (Perspective+) (picker variant)
Keys and controllers
Map any of these to a key, a game controller's button or axis, or a MIDI knob (how):
- Autopilot AP
- Autopilot FD
- Autopilot YD
- Autopilot HDG
- Autopilot NAV
- Autopilot APR
- Autopilot BC
- Autopilot ALT
- Autopilot VS
- Autopilot FLC
- Autopilot LVL
- Autopilot UP / DN +
- Autopilot UP / DN -
- Altitude +
- Altitude -
- Altitude sync
Simulator data
What the Hub reads from the simulator for this instrument, and what the instrument sends back. Names are the simulators' own: MSFS SimVars and events, X-Plane datarefs and commands.
Reads
| Value | MSFS | X-Plane |
|---|---|---|
| Autopilot modes, one bit each (ApBit: ap, fd, yd, hdg, nav, apr, bc, alt, vs, flc, lvl, gs, vnv) (bitfield) | AUTOPILOT MASTER (bool)AUTOPILOT FLIGHT DIRECTOR ACTIVE (bool)AUTOPILOT YAW DAMPER (bool)AUTOPILOT HEADING LOCK (bool)AUTOPILOT NAV1 LOCK (bool)AUTOPILOT APPROACH HOLD (bool)AUTOPILOT BACKCOURSE HOLD (bool)AUTOPILOT ALTITUDE LOCK (bool)AUTOPILOT VERTICAL HOLD (bool)AUTOPILOT FLIGHT LEVEL CHANGE (bool)AUTOPILOT WING LEVELER (bool)AUTOPILOT GLIDESLOPE HOLD (bool) | sim/cockpit2/autopilot/servos_onsim/cockpit2/autopilot/flight_director_modesim/cockpit2/switches/yaw_damper_onsim/cockpit2/autopilot/heading_statussim/cockpit2/autopilot/nav_statussim/cockpit2/autopilot/approach_statussim/cockpit2/autopilot/backcourse_statussim/cockpit2/autopilot/altitude_hold_statussim/cockpit2/autopilot/vvi_statussim/cockpit2/autopilot/speed_statussim/cockpit2/autopilot/roll_statussim/cockpit2/autopilot/glideslope_status |
Sends
| When you… | MSFS | X-Plane |
|---|---|---|
| Each key, with its ApBit (hdg, nav, apr, ap, lvl, fd, yd, flc, alt, vs, vnv) | AP_MASTERTOGGLE_FLIGHT_DIRECTORYAW_DAMPER_TOGGLEAP_PANEL_HEADING_HOLDAP_NAV1_HOLDAP_APR_HOLDAP_BC_HOLDAP_ALT_HOLDAP_PANEL_VS_HOLDFLIGHT_LEVEL_CHANGEAP_WING_LEVELER | sim/autopilot/servos_togglesim/autopilot/fdir_togglesim/systems/yaw_damper_togglesim/autopilot/headingsim/autopilot/NAVsim/autopilot/approachsim/autopilot/back_coursesim/autopilot/altitude_holdsim/autopilot/vertical_speedsim/autopilot/level_changesim/autopilot/wing_leveler |
| Pitch wheel: rolled toward DN negative, toward UP positive, a step per rib; tap top/bottom half for one step | AP_VS_VAR_SET_ENGLISHAP_SPD_VAR_SETAP_PITCH_REF_INC_UPAP_PITCH_REF_INC_DN | sim/cockpit2/autopilot/vvi_dial_fpmsim/cockpit2/autopilot/airspeed_dial_kts_machsim/autopilot/nose_upsim/autopilot/nose_down |
Add-on aircraft with their own systems may use other variables; the Hub reads the standard ones.
Changes
The instrument's version counts what its faces share (the case, the mechanism, the data, the sounds); a face's own version counts that face alone.
- 1.0 2026-10-19
- First numbered version.
