GI 275 for Helicopters
Overview

REPLACE ANALOG GAUGES WITH ELECTRONIC DISPLAYS
Adaptable to a range of instrument formats and functions, our GI 275 electronic displays let you retrofit your Part 27 helicopter with modern, reliable touchscreen display technology.
Out with the old, in with the new. It flush mounts in a standard 3-1/8”round cutout.
It's STC'd for select Part 27 helicopters.
How do you see it? Attitude, altitude, airspeed, CDI, HSI or MFD?
It comes with built-in VFR GPS — and it's available with precise digital ADAHRS.
Connect your cockpit with built-in Wi-Fi® connectivity and Bluetooth® technology.
Know you'll get home with up to 60 minutes of optional backup battery power.

Fly with an attitude that inspires trust.

BASIC ATTITUDE
Save weight and maintenance expense: replace that aging vacuum pump-driven attitude indicator with a reliable solid-state ADAHRS-driven GI 275 electronic display.

A LESS ARTIFICIAL HORIZON
To add situational awareness, your display can overlay attitude reference on an optional Garmin HSVT™ synthetic vision landscape with WireAware™ wire-strike avoidance technology.

INSTRUMENT CONSOLIDATION
As your primary flight reference instrument, GI 275 features an integrated display to support all the essential readouts — attitude, altitude, airspeed and heading.

EDGE-TO-EDGE DISPLAY
The bright, high-resolution GI 275 touchscreen is sunlight-readable and maximizes the available space within the instrument panel cutout.

REFERENCE MARKERS
The GI 275 instrument can support display of selectable alerts to mark your arrival at a preselected altitude, heading or airspeed.

STANDBY ADI
GI 275 can function as a standalone standby flight instrument to back up existing attitude indicators or flight displays.

KNOB OR TOUCH CONTROLS
The touchscreen on GI 275 makes accessing its functions a breeze. A traditional concentric knob is also available for those who prefer that style of data input.

Gain solid direction for primary navigation.

NAVIGATION GUIDANCE
In addition to primary magnetic heading reference, GI 275 can accept inputs for VOR/LOC and/or GPS course guidance — along with distance and groundspeed indications.

TRACK IN ALL DIMENSIONS
For climb/descent profiles and approaches, GI 275 can display both vertical and lateral GPS/VOR/LOC course deviation cues, when available.

ENHANCED HSI
With appropriate NAV inputs, GI 275 can optionally add HSI course guidance overlaid on a moving map display with flight plan legs, terrain, obstacles wires, weather and more.

COMPLETE CDI SOLUTION
When paired with select VHF NAV/COMMS or GPS navigators, GI 275 can serve as your primary indicator for making, adjusting and tracking course selections.

DUAL ADVANTAGES
With dual GI 275 displays as your primary flight instrumentation, reversionary backup capability retains attitude and heading data on the remaining HSI or MFD if an outage should occur1.

DIRECT-TO
Built-in VFR GPS navigation enables convenient Direct-to guidance with position depicted on the moving map display.

See more information as you fly your mission.

MULTIFUNCTION DISPLAY
When configured as an MFD, GI 275 can serve multiple roles, supporting displays for moving map, traffic, terrain, wires and obstacles, weather, CDI and more.

MOVING MAP
Within the MFD configuration, a dynamic moving map page offers views of terrain, obstacles, wires, airports, airspace boundaries, navaids, flight plan routings and more.

TRAFFIC AND WEATHER
With select ADS-B “In” datalinks, GI 275 MFD pages will support subscription-free U.S. weather and traffic displays, including TargetTrend™ and TerminalTraffic™ technologies.

ANIMATED NEXRAD
When paired with an optional GDL® 69 SiriusXM® receiver, the MFD-configured GI 275 offers display capability for satellite weather coverage with graphical NEXRAD imagery.

RADAR ALTIMETER
For applications that require precise tracking of aircraft altitude above the terrain, GI 275 can be configured as a dedicated display for select radar altimeters, including our GRA™ altimeter series (sold separately).

HTAWS SUPPORT
In addition to basic forward-looking terrain avoidance technology, GI 275 supports optional HTAWS capabilities when paired with a GTN™ series, GTN Xi series or WAAS-enabled GNS™ series navigator2.

OUTSIDE AIR TEMPERATURE
Pair GI 275 with an optional GTP 59 OAT probe to see true airspeed, density altitude and other essential flight calculations.

WIRELESS DATA STREAMING
Use built-in wireless connectivity to share data between GI 275 and compatible mobile apps. Import databases. Stream weather, traffic, attitude information and more3.
- Both GI 275 units must be ADAHRS versions to support reversionary capability
- Navigator must have HTAWS enabled
- Weather and traffic information requires compatible datalink source
Interfaces
- Garmin products have been designed for compatibility with a wide range of avionics. To confirm compatibility of Garmin equipment with your specific aircraft make/model and current avionics configuration, please consult your Authorized Garmin Dealer.
Interface
Manufacturer
Model
Notes/Info
GPS Source
Garmin
Internal VFR GPS
GNS 430W/530W Series
GNS 480
GTN 650/750 Series
GTN 650Xi/750Xi Series
GTX 335/345
Requires Integrated GPS Variant
Database Updating
Garmin
GSB 15
Garmin Pilot App
Navigation Receiver
Garmin
GNC 255
GNS 430W/430AW
GNS 530W/530AW
GNS 480 (CNX80)
GTN 650/750
GTN 650Xi/750Xi
SL 30
Collins
VIR-32/33
Honeywell (Bendix/King)
KX 155/155A/165/165A
KN 53
Radar Altimeter
Garmin
GRA 55/5500
Collins
RAC-870
FreeFlight
RA-4500
Honeywell (Bendix/King)
KRA 405B
Traffic Source
Garmin
GTS 800/820/825/
850/855
GTX 33/330/335
TIS-A Only
GTX 345
Avidyne (Ryan)
TAS 6XX/TCAD
Honeywell
(Bendix/King)
KTA870/KMH820
KTA970/KMH920
L-3 Communications
(Goodrich)
SKY497
SKY899
Weather Source
Garmin
GDL 69H/GDL 69AH
GTN Series, GTN Xi series or TXi Series must also be connected
GTX 345
Specs
General
| Width | 3.25" (82.6 mm) |
| Height | 3.25" (82.6 mm) |
| Depth | 6.44" (163.6 mm) |
| Depth with connector | 7.40" (188.0 mm) |
| Unit weight | 1.9 lbs (0.86 kg) to 2.4 lbs (1.1 kg) |
| Active display size | 2.69” diameter |
| Display resolution | 480 x 433 pixels |
| Operating voltage | 14/28 VDC |
| Operating temperature range | -20°C to +55°C< |
| Altitude range | -1,500 ft to 55,000 ft |
| Wi-Fi class | 802.11b/g/n |
Rotary Aircraft Models Currently FAA Approved for GI 275 Installation
| Aircraft | Model(s) |
| Airbus AS350 | BA, B2, B3 |
| Bell | 4071 |
| Robinson | R66 |
1Not approved in Bell 407 GXi variants equipped and approved for IFR operations.
Last Updated: 6/6/2023