The Dynon Certified SkyView HDX and the affordable glass cockpit breaking Garmin's grip on certified aircraft panels

The Dynon Certified SkyView HDX is reshaping the certified aircraft avionics market by delivering glass cockpit capability at 30 to 50 percent less than comparable Garmin installations. For owners of mid-value certified singles like the Cessna 172 and Piper Cherokee, the system offers a realistic path to panel modernization that finally pencils out against hull value.

How Did Dynon Break Into Certified Avionics?

Dynon Avionics, based in Woodinville, Washington, spent nearly two decades proving its hardware in the experimental and light sport market before tackling certified aircraft. Since 2003, the SkyView HDX became the panel of choice for Van’s RV, Zenith, and Kitfox builders — accumulating hundreds of thousands of flight hours on experimental airframes.

In 2020, the FAA granted Dynon its first Supplemental Type Certificate (STC) for installation in the Cessna 172S. That approval has since expanded to the Cessna 182, the Piper PA-28 series, and additional airframes continue to be added. The certified version meets FAA Technical Standard Order (TSO) requirements while maintaining the same core hardware and software proven in the experimental fleet.

What Does the SkyView HDX Certified System Include?

The system centers on a 10-inch or 7-inch HDX display (most owners opt for the 10-inch, often installing two for redundancy). Each screen delivers:

• Primary flight display (PFD) with synthetic vision
• Moving map multifunction display
• Engine monitoring
• Integrated autopilot interface
• 1,200 x 800 resolution at 1,000 nits brightness — fully readable in direct sunlight
• ~15 watts power draw per unit

The critical advantage is integration. Dynon bundles the attitude and heading reference system (AHRS), air data computer, engine monitor, GPS navigator, and autopilot servo interface into a single ecosystem. In Garmin’s architecture, each of those is typically a separate box with its own price tag and installation labor. That consolidation is where the real savings emerge — a Dynon system replaces what might be five or six separate Garmin part numbers.

How Much Does Dynon Certified Cost vs. Garmin?

A typical dual-screen SkyView HDX Certified installation with engine monitoring and autopilot interface runs $25,000 to $40,000 installed, depending on the shop and complexity. A comparable Garmin G500 TXi setup with engine monitoring and GFC 500 autopilot typically costs $60,000 to $80,000.

That 30 to 50 percent savings changes the financial equation entirely. On an airplane worth $120,000 to $200,000, spending $35,000 on Dynon glass makes financial sense where $80,000 on Garmin glass does not. This is the market segment Dynon is targeting — and it represents a huge portion of the general aviation fleet.

What Are the Limitations of Dynon Certified?

Four factors deserve honest consideration before committing:

Limited STC coverage. Garmin holds STCs for nearly every certified piston single and light twin built in the last 50 years. Dynon’s list is expanding but still narrower. Owners of Mooneys, Bonanzas, and other types may still be waiting for coverage. Always verify your specific airframe and serial number range.

IFR navigation nuances. The SkyView HDX Certified includes a solid WAAS-enabled GPS and is approved for IFR flight. However, it is not currently approved as a sole-source IFR navigation solution the way a Garmin GTN 650Xi is. Most owners retain a standalone IFR-approved GPS navigator in the stack, adding cost and panel space.

Autopilot approval rollout. Dynon manufactures its own autopilot servos, and they perform well. But certified autopilot STCs are rolling out aircraft by aircraft, and Garmin’s GFC 500 currently has broader coverage. If autopilot is the primary motivator, check the STC list carefully.

Smaller dealer network. Garmin’s massive dealer network means nearly every avionics shop in the country knows the product. Dynon’s certified dealer network is growing but smaller. Owners based at remote fields may need to fly their aircraft to a Dynon-authorized shop for installation and service.

How Is Dynon Changing the Avionics Market?

For roughly 20 years, Garmin held what amounted to a near-monopoly in certified glass cockpit retrofits — not because of inferior competition, but because the FAA certification process is expensive, slow, and complicated enough to keep others out. Dynon invested years and significant capital to break through that barrier.

The competitive pressure is already producing results across the board. Garmin’s G5 instrument (a standalone 3.5-inch display replacing a single attitude indicator for about $3,000) and the GI 275 both reflect a downmarket push that coincides with Dynon’s upward expansion. Every pilot benefits from this competition, regardless of which brand they ultimately choose.

Why Does Affordable Glass Matter for Safety?

The average certified piston aircraft is over 45 years old. These airplanes are mechanically sound but fly with instrument panels from another era — vacuum-driven attitude indicators, mechanical directional gyros, and analog engine gauges that signal problems well after they’ve begun.

Modern glass panels deliver synthetic vision, engine trend monitoring, traffic awareness, and weather overlay — capabilities that directly reduce spatial disorientation accidents, undetected engine failures, and controlled-flight-into-terrain events. But these safety improvements only matter if owners can afford to install them. A product delivering 80 percent of the capability at 40 percent of the price will reach far more cockpits.

Should You Buy the Dynon Certified SkyView HDX?

Best fit: Owners of Cessna 172S/SP or Piper PA-28 aircraft who want glass but cannot justify Garmin pricing. The product is mature, backed by extensive real-world flight hours on experimental airframes, and the certified version is the same core system with FAA paperwork completed.

Garmin still leads if: You fly primarily IFR and need a fully integrated navigation solution with LPV approach capability from a single box. The GTN series remains hard to beat for pure IFR utility.

Resale consideration: Garmin glass currently commands a higher premium on the used market due to brand recognition, but that gap is narrowing as buyer awareness of Dynon grows.

Experimental owners: The conversation is effectively settled. Dynon has dominated that space for years, and the SkyView HDX remains the default choice.

Key Takeaways

• Dynon’s Certified SkyView HDX delivers glass cockpit capability to certified aircraft at $25,000–$40,000 installed, roughly 30–50% less than comparable Garmin systems
• STC coverage currently includes the Cessna 172S, Cessna 182, and Piper PA-28 series, with more airframes being added
• Integration is the key advantage — Dynon bundles AHRS, air data, engine monitoring, GPS, and autopilot interface into one ecosystem, replacing multiple separate Garmin boxes
• Limitations remain in IFR sole-source navigation approval, autopilot STC breadth, and dealer network size compared to Garmin
• Competition between Dynon and Garmin is driving better products and lower prices across the entire certified avionics market