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Fax: +49 7051 967163
Email: office@businessaviation.com
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GULFSTREAM IV / IV-SP / G400
Gulfstream IV / GIV-SP / G400: The Dynasty Builder
The 1985 Revolution That Lasted 40 Years
In 1985, Gulfstream introduced the Gulfstream IV — the aircraft that defined large cabin aviation for a generation. With Rolls-Royce Tay engines, 7,815 km (4,220 nm) range, and the quietest cabin in business aviation, the GIV became the most successful large cabin jet in history with over 500 delivered.
Specifications That Built an Empire
• Range: 7,815 km (4,220 nm) — transatlantic with reserves
• Speed: 935 km/h (505 knots) — Mach 0.88 maximum
• Capacity: 12 – 19 passengers in the definitive Gulfstream cabin
• Engines: Two Rolls-Royce Tay Mk 611-8 (13,850 lbf) — efficient, reliable
• Cabin altitude: 6,000 ft at FL450 — passenger comfort priority
The GIV-SP (1988) added higher weights and improved avionics. The G400 (2002) was the final evolution with PlaneView avionics and updated systems.
• Speed: 935 km/h (505 knots) — Mach 0.88 maximum
• Capacity: 12 – 19 passengers in the definitive Gulfstream cabin
• Engines: Two Rolls-Royce Tay Mk 611-8 (13,850 lbf) — efficient, reliable
• Cabin altitude: 6,000 ft at FL450 — passenger comfort priority
The GIV-SP (1988) added higher weights and improved avionics. The G400 (2002) was the final evolution with PlaneView avionics and updated systems.
The Market Today
Pre-owned Gulfstream IV aircraft trade between $2M and $4M — remarkable value for a transatlantic icon. GIV-SP models command $3M – $5M for the upgrades. G400 models: $5M – $8M for the modern avionics. Operating costs: $3,500 – 4,500 per hour — reasonable for the capability.
The Verdict
The Gulfstream IV / GIV-SP / G400 is the aircraft that defined large cabin aviation. It took everything that worked in the GIII and perfected it for the modern era.
For the buyer seeking a GIV, you're acquiring the dynasty builder — the aircraft that established Gulfstream as the undisputed leader in large cabin jets.
For the buyer seeking a GIV, you're acquiring the dynasty builder — the aircraft that established Gulfstream as the undisputed leader in large cabin jets.
GULFSTREAM IV / IV-SP / G400 OVERVIEW
GULFSTREAM IV / IV-SP / G400 ROUTE PERFOMANCE