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Gulfstream Adds First Fully Outfitted G400 to Flight-Test Program

October 22, 2026

2 min read

Key Takeaways

Gulfstream starts flight testing G400 with complete passenger cabin.
The aircraft flew for 2 hours and 46 minutes, reaching 48,000 feet.
G400 features 11-passenger interior and advanced cabin systems.
Gulfstream aims to evaluate passenger comfort and cabin performance.

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Strategic Implications

The G400's progress may indicate Gulfstream's growing confidence in its new business jet, which could strengthen the company's competitive position in the market. The aircraft's advanced features and cabin configurations suggest a focus on passenger comfort and experience, which may appeal to customers seeking premium business aviation solutions.

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What Happened

Business Jet Manufacturer Advances Toward Certification With Cabin Testing

Gulfstream has begun flight testing the first G400 business jet with a complete passenger cabin, marking a significant milestone in the aircraft’s certification program. The company showcased the aircraft at NBAA-BACE 2026 in Las Vegas, where it also announced a Miami-Las Vegas speed record set by another G400. The G400 has undergone high-altitude and cold-weather testing, and its development is part of Gulfstream’s efforts to expand its fleet and improve maintenance support. The latest flight comes more than two years after the G400 first flew in August 2024, as reported by AeroTime.

Source | Originally Published: October 22, 2026

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