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Pentastar Aviation has received a supplemental type certificate (STC) from the FAA approving installation of the Gogo Galileo HDX satcom system on Gulfstream IV, G450, GV, and G550 series jets.
The STC covers the GIV and GIV-X, as well as the GV and GV-SP variants. Initial installations were completed on a G450 owned by a private customer and a G550 operated by Hatzolah Air Aviation Rescue.
The Galileo HDX system connects to the Eutelsat OneWeb low-earth-orbit satellite network, providing global broadband connectivity with low latency. Pentastar said the system adds redundancy for operators upgrading from existing Gogo Avance air-to-ground connectivity systems.
“The speed and coverage combined with the integration abilities truly make Galileo an exceptional one-of-a-kind solution,” said Pentastar president and CEO Brad Bruce. He added that the approval expands connectivity options for Gulfstream operators and highlighted Hatzolah’s use of the system to maintain real-time medical data links during its missions.
“Owners of these Gulfstream aircraft can now optimize our advanced technology solution for best-in-class connectivity through these latest STCs,” said Gogo chief commercial officer Michael Skov Christensen, and they will benefit from around-the-clock technical support, training, and cybersecurity services.
The compact HDX antenna is designed for installation across a wide range of business aviation aircraft, from turboprops to large-cabin business jets.
In a May 2025 interview with AIN, Gogo outlined how its Satcom Direct integration is reshaping the company’s international strategy, particularly in Europe. CEO Chris Moore said the merger created a unified connectivity provider spanning air-to-ground, 5G, and LEO and GEO satellite services, supported by Satcom Direct’s global sales, support, and data infrastructure. Moore highlighted growing demand for dual LEO-GEO configurations to provide global coverage, regulatory flexibility, and consistent connectivity across mixed aircraft fleets.