GPS, NAV & COM Upgrades in Virginia

A modern GPS, NAV, or COM upgrade isn't just a box swap — it's a decision that affects every approach you fly, every controller you talk to, and every dollar you'll put into the aircraft over the next decade. At SkyWorld Aviation, we take that seriously. Our team helps owners navigate the real questions behind every avionics decision: what works with your existing panel, what unlocks the capability you actually want, and what protects the long-term value of your aircraft.

Whether you're upgrading from a non-WAAS unit to gain LPV approach capability, replacing an aging COM radio that's been frustrating you for years, or building a fully integrated NAV/COM/GPS stack from scratch, we approach the work the same way we approach every aircraft that enters our hangar — with technical precision, honest communication, and a commitment to doing it right the first time. We'll tell you when a new unit makes sense, when a repair is the smarter call, and when keeping what you have is the right answer for your mission and your budget.

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What's the difference between a WAAS and non-WAAS GPS, and do I need to upgrade?
A WAAS-capable GPS uses the FAA's Wide Area Augmentation System to deliver the precision required for LPV approaches, which provide near-ILS minimums at thousands of airports without ground-based equipment. Non-WAAS units (such as the original Garmin GNS 430 or 530, Bendix/King KLN 94, and similar legacy navigators) cannot fly LPV approaches and are increasingly limited in IFR utility. Most owners flying IFR or planning to fly IFR in the next five years benefit from upgrading. SkyWorld Aviation helps owners evaluate whether a WAAS upgrade fits their mission profile, panel layout, and budget before recommending any installation.
Can I keep my existing avionics and only replace one unit, or do I have to replace the whole stack?
In most cases, owners can replace a single GPS, NAV, or COM unit without overhauling the entire panel. Modern Garmin, Avidyne, and other current-generation avionics are designed to integrate with a wide range of legacy equipment through standard interfaces, though compatibility depends on the specific units involved, the aircraft's wiring, and the autopilot in the panel. SkyWorld Aviation reviews each aircraft individually and provides a direct answer on what will integrate cleanly, what may require additional interface work, and where a partial upgrade saves money versus where it creates more problems than it solves.
How long will my aircraft be down for a GPS, NAV, or COM upgrade?
A GPS, NAV, or COM replacement typically requires one to three weeks in the shop, depending on the complexity of the install, autopilot integration, certification paperwork, and supply chain availability for the specific unit. Multi-unit panel upgrades generally require four to eight weeks. SkyWorld Aviation provides a written timeline before work begins, communicates proactively if anything changes during the install, and works to return every aircraft to service as quickly as quality and compliance allow.

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Common GPS/NAV/COMS QUESTIONS

What's the difference between a WAAS and non-WAAS GPS, and do I need to upgrade?

Can I keep my existing avionics and only replace one unit, or do I have to replace the whole stack?

How long will my aircraft be down for a GPS, NAV, or COM upgrade?

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