Inside Gulfstream's G400 Flight Test Process

What it takes to certify a new large-cabin jet.

November 2026

Gulfstream recently showed off a G400 test aircraft, which broke a speed record flying to Las Vegas.

Gulfstream Launches G400 Cabin Tour

First flight is expected later this year, with entry into service scheduled for 2025.

The company explained the work its engineers are doing to bring the latest addition to Gulfstream's large-cabin business jet family to market. This video brought to BJT by sister-publication Aviation International News.

Inside Gulfstream's G400 Flight Test Process

What it takes to certify a new large-cabin jet.

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Gulfstream Launches G400 Cabin Tour

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