The Dynon Certified HDX and the affordable glass cockpit that finally cracked the certified aircraft market

The Dynon Certified HDX is the most cost-effective glass cockpit upgrade available for certified general aviation aircraft. At $25,000–$30,000 installed — roughly half the price of a comparable Garmin system — it delivers a complete integrated panel with flight instruments, engine monitoring, GPS navigation, and a two-axis autopilot. For owners of older Cessnas, Pipers, and Beechcraft flying behind aging steam gauges, it represents the first time the economics of a full glass upgrade actually make sense.

How Did Dynon Break Into the Certified Market?

Dynon Avionics has been building affordable glass panels since 2000, when they launched the D10 electronic flight instrument system. For nearly two decades, they dominated the experimental and light sport aircraft world, delivering clean, responsive displays at prices that undercut the established avionics manufacturers by wide margins.

The barrier was regulatory. Certified aircraft require avionics approved through Technical Standard Orders (TSOs) and Supplemental Type Certificates (STCs) — a process costing tens of millions of dollars and taking years to complete. Dynon had the technology and the price point but not the paperwork.

That changed in 2018 when the FAA expanded the use of non-TSO’d avionics in certain certified aircraft under ASTM standards. This regulatory shift opened a path for Dynon to enter the certified market without the full traditional TSO process. Dynon moved quickly, developing the SkyView HDX Certified system and rolling out aircraft-specific STCs.

Which Aircraft Are Approved for the Dynon HDX?

Each aircraft type requires its own STC, meaning Dynon must complete individual engineering work, flight testing, and FAA coordination for every make and model. The current approved list includes:

• Cessna: 150, 152, 170, 172, 175, 180, 182, and several other models
• Piper: PA-28 Cherokee family and PA-32 series
• Beechcraft: Select Bonanza and Baron models

The list continues to grow, but significant gaps remain. Mooney, Grumman, Cessna 210, and Piper Comanche owners are still waiting. If you fly a less common type, installation may not yet be an option.

What Does the Dynon HDX System Include?

The core of the system is a 10-inch or 7-inch HDX display — bright, sunlight-readable, with touchscreen input backed up by physical knobs and buttons. It functions as both a primary flight display and multifunction display, providing:

• Attitude indicator, airspeed, altitude, vertical speed, heading, and turn coordinator
• Engine monitoring (with the engine monitoring module)
• Moving map with terrain awareness
• Traffic display when paired with an ADS-B transceiver
• Weather data
• Integrated two-axis autopilot capable of holding heading, altitude, tracking GPS courses, and flying coupled approaches

The key advantage is single-vendor integration. Flight instruments, engine monitor, autopilot, GPS, intercom, and transponder are all designed as one system with one software update process, one interface philosophy, and one support number. Compare that to a typical mixed-vendor Garmin upgrade stitching together products from four or five companies with different data buses and update schedules.

How Does Dynon HDX Pricing Compare to Garmin?

The cost difference is substantial:

Hardware alone runs $15,000–$18,000 for a Cessna 172 installation. Installation adds $8,000–$12,000 depending on shop rates, existing wiring condition, and scope of the panel teardown.

At $60,000, most owners of older Cessnas and Pipers cannot justify an avionics upgrade that costs more than the airplane itself. At $25,000, the math changes. You’re adding real capability and real value to a $30,000–$40,000 airplane, amortized over years of safer flying.

Where Does the Dynon HDX Fall Short?

Display quality. The HDX screen is good for the price, but it is not a Garmin TXi. The graphics are slightly less polished, map rendering is a generation behind, and the menu structure lacks the refinement Garmin has spent decades perfecting. The difference is noticeable if you’ve flown behind both systems.

Autopilot safety features. Dynon’s autopilot is capable for basic operations, but it lacks the envelope protection found in the Garmin GFC 500. There is no Electronic Stability and Protection (ESP) system and no automatic level mode — a button-press recovery to wings-level flight that has saved lives. For pilots buying an autopilot primarily for safety margins, this is a meaningful gap.

STC coverage. Progress is slow and uneven. Many popular aircraft types remain unsupported, and the STC-by-STC approach, while correct from a safety standpoint, means some owners may wait years.

Installer network. Garmin’s authorized dealer and installer network is vastly larger. Finding a shop with deep Dynon certified installation experience is harder than finding one with decades of Garmin work behind them. Installer experience matters significantly when rebuilding an aircraft panel.

Does a Dynon Panel Hurt Resale Value?

Currently, a Garmin panel commands a higher resale premium than a Dynon panel. Buyers shopping for a glass-equipped 172 will generally gravitate toward a G1000 listing over a Dynon HDX listing, all else being equal. That gap may narrow as Dynon builds market share and brand recognition in the certified world, but today, Garmin is the safer choice if resale value is the primary motivation for upgrading.

Most owners, however, upgrade for operational reasons — eliminating vacuum pump failures, gaining synthetic vision, replacing a $4,000 attitude indicator overhaul with a system delivering ten times the information.

Why Does the Dynon HDX Matter for Flight Schools?

The economics are particularly compelling for flight training operations. Schools operating fleets of Cessna 172s face a dilemma: students need glass cockpit experience for their careers, but fleet-wide Garmin G1000-equivalent upgrades would cost more than the airplanes themselves.

Dynon offers a middle path — glass experience, a modern interface, and integrated autopilot for instrument training at a price a flight school can absorb across a fleet. Early adopters report that students adapt to the Dynon interface quickly.

How Is Dynon Affecting the Broader Avionics Market?

Dynon’s presence in the certified market has already driven competitive responses. Garmin’s G5 standalone digital flight instrument arrived at a price point that would have been unthinkable a decade earlier. The GI 275 represents Garmin’s answer to modular, affordable upgrades. Even pilots who never buy a Dynon product are likely benefiting from lower Garmin prices driven by this competition.

Looking ahead, the key questions are how fast Dynon can expand STC coverage and whether they will add envelope protection to close the autopilot capability gap. The company has signaled a consistent roadmap: more aircraft types, more features, same price philosophy.

Key Takeaways

• The Dynon Certified HDX delivers a complete glass cockpit with autopilot for $25,000–$30,000 installed — roughly half the cost of a comparable Garmin system
• STC coverage is the biggest limitation, with many popular aircraft types still awaiting approval; check Dynon’s current list before planning an upgrade
• The autopilot lacks envelope protection features like ESP and automatic level mode found in Garmin’s GFC 500
• Single-vendor integration is a genuine advantage, eliminating the compatibility headaches of multi-manufacturer panel builds
• Dynon’s market entry is pushing down avionics prices industry-wide, benefiting all aircraft owners regardless of which brand they choose