Free avionics rack

A rack you fill yourself: pick the radios, audio panels, transponders, autopilots and navigators you want and put them in your order, top first. Every unit works as it does on its own; the room left under them is closed by blank plates with screws.

Modeled on: A generic radio-stack rack: units one over the other, empty bays closed by blank plates
Category: Avionics stacks
Size: 3 × 2 cells
Version: 1.0 · 2026-10-19
Plan: Pro
Simulators: MSFS 2020 · MSFS 2024 · X-Plane 11 · X-Plane 12

Variants

Wide 3 x 2v1.0

A 3 x 2 rack

Picker: Free avionics rack > SIZE > Wide 3 x 2

Standing 2 x 3v1.0

A tall 2 x 3 rack, like a real stack beside a display

Picker: Free avionics rack > SIZE > Standing 2 x 3

Small 2 x 2v1.0

A 2 x 2 rack

Picker: Free avionics rack > SIZE > Small 2 x 2

Features

Up to 8 units, chosen from every radio-stack-width unit (list in settings), top first, each at its own faceplate proportions
A new rack starts with the 172's set (GaugeKindInfo.rackDefaults): GMA 340-style audio panel, KX 155A-style NAV/COM, GTX 327-style transponder
Units are never stretched taller than drawn; if they don't fit they are squeezed slightly (to 85%) and then narrowed
Space under the units is filled by matte black blank plates with four screws; an empty rack's first plate says 'Long press to add units'
Each unit is fully live: its own keys, knobs, display and night lighting
Drag an instrument onto the rack to 'Put it in the rack' (at the bottom) or swap places

On the iPad

Use each unit's own controls directly
Long press the rack to open its sheet: move units up or down, take them out, or add a unit at the bottom from the list
Drag a rackable unit from the page onto the rack: choose 'Put ... in the rack' or 'Swap places'

Settings

Size: Wide 3 x 2, Standing 2 x 3, Small 2 x 2
Units (top first, up to 8; move up / move down / take out / add at the bottom). Units that fit: NAV/COM (GNC 215 style), 1 or 2; GFC 500-style autopilot; GFC 600-style autopilot; GMA 350-style audio panel; GTX 345-style transponder; KX 155A-style NAV/COM, 1 or 2; KT 76C-style transponder; KAP 140-style autopilot; KR 87-style ADF; KMA 24-style audio panel; Annunciators and NAV / GPS; GNS 430-style navigator; GNS 530-style navigator; C172-style audio panel; KT 76A-style transponder; GMA 340-style audio panel; GTX 327-style transponder; S-TEC-style autopilot; GNC 255-style NAV/COM, 1 or 2; GTR 225-style COM, 1 or 2; SL30-style NAV/COM, 1 or 2; SL40-style COM, 1 or 2; KX 125-style NAV/COM, 1 or 2; KY 197-style COM, 1 or 2; GTX 330 / 330ES-style transponder; KN 62A-style DME; KAP 150 / KFC 150-style autopilot; GMC 705 / 707-style autopilot controller; KLN 89B-style GPS (the 1-or-2 variants are separate entries, e.g. NAV/COM and NAV/COM 2)