Midsize Jet - Legacy Production
Gulfstream G100: Complete Specs, Performance, and Buyer's Guide (2026)
Gulfstream Aerospace (rebrand of IAI Astra SPX)
Gulfstream G100: Complete Specs, Performance, and Buyer's Guide (2026)
The Gulfstream G100, produced from 2001 to 2006, is the rebrand of the IAI Astra SPX following Gulfstream's 2001 acquisition of Israel Aircraft Industries' executive jet division. The aircraft is mechanically identical to the Astra SPX (production 1994-2001), with the same Honeywell TFE-731-40R-200G engines, winglets, Rockwell Collins Pro Line 4 avionics, and proven Israeli engineering. The G100 represents the same proven Astra platform with worldwide Gulfstream service infrastructure replacing the smaller IAI support network. Powered by twin TFE-731-40R turbofan engines producing 4,250 lbf each (one of the most powerful setups in midsize class), the G100 delivers 2,517 nautical miles of NBAA IFR range, 465 ktas (Mach 0.82) maximum cruise, and a 45,000 ft service ceiling typically operated with two pilots. Cabin seating accommodates up to 9 passengers. Production ended in 2006 as Gulfstream introduced the G150 successor. Pre-owned market today: $1.7 million average ($2M-$2.9M range per Vref).
For operators seeking proven Astra SPX capability with Gulfstream's worldwide service infrastructure, the G100 represents the platform's most-supported variant.
Gulfstream G100 Specifications at a Glance
| Specification | Value |
|---|---|
| Category | Midsize Jet - Legacy Production |
| Production Status | Discontinued 2006 (replaced by Gulfstream G150) |
| Origin | Rebrand of IAI Astra SPX (post-2001 Gulfstream acquisition) |
| Mechanical Differences From Astra SPX | None (same aircraft) |
| Production Years | 2001 to 2006 |
| Predecessor | IAI Astra SPX (1994-2001) |
| Successor | Gulfstream G150 (2006-2017) |
| Manufacturer Heritage | IAI engineering, Gulfstream support |
| Crew | 2 pilots |
| Passengers (Standard) | 6 to 7 |
| Passengers (Max) | 9 |
| Max Range (NBAA IFR) | 2,517 nm |
| Range (Seats Full) | 2,456 nm |
| Max Cruise Speed | 465 ktas (Mach 0.82, 536 mph) |
| Max Operating Altitude | 45,000 ft |
| Engines | 2× Honeywell TFE-731-40R-200G turbofans |
| Thrust per Engine | 4,250 lbf (8,500 lbf total) |
| Winglets | Yes (inherited from Astra SPX) |
| Avionics | Rockwell Collins Pro Line 4 |
| Major Inspection Interval | 5,000 hours |
| Max Takeoff Weight | 24,650 lb |
| Length | 55 ft 7 in |
| Height | 18 ft 2 in |
| Wingspan | 52 ft 8 in |
| Cabin Length | 17 ft 1 in |
| Cabin Width | 4 ft 9 in (57 in) |
| Cabin Height | 5 ft 6 in (66 in) |
| Cabin Volume | 375 cu ft |
| Total Baggage Volume | 51 cu ft (9 internal + 42 external) |
| Balanced Field Length | 5,000 ft |
| Landing Distance (Over 50 ft Obstacle) | 2,400 ft |
| Average Pre-Owned Price | $1,700,000 |
| Pre-Owned Range (per Vref) | $2,000,000 to $2,900,000 |
| Average Operating Cost | $5,189/hr |
History as the Gulfstream-Branded Astra SPX
The G100 began as the IAI Astra SPX in 1994 (the third generation of the Astra platform after the original Astra and Astra SP). In 2001, Gulfstream acquired the IAI executive jet division and rebranded the SPX as the G100, providing worldwide Gulfstream service infrastructure to the proven Israeli platform.
Platform timeline:
- 1985: Original IAI Astra introduced
- 1990: Astra SP introduced
- 1994: Astra SPX introduced
- 1994-2001: Production as IAI Astra SPX
- 2001: Gulfstream acquires IAI executive jet division
- 2001: Astra SPX rebranded as Gulfstream G100
- 2001-2006: G100 production
- 2005: Gulfstream G150 announced
- 2006: G100 production ends in favor of G150
- 2017: G150 production ends
The Gulfstream rebrand provided substantial market advantages: worldwide Gulfstream parts distribution, established service network, and the prestigious Gulfstream brand association.
Why "Same Aircraft, Better Support" Matters
The G100 and Astra SPX are mechanically identical aircraft. The differences are in support infrastructure:
IAI Astra SPX Support (Pre-2001)
- Smaller IAI executive jet support network
- Israel-based engineering and parts distribution
- More limited worldwide presence
- Specialty operators network
Gulfstream G100 Support (Post-2001)
- Worldwide Gulfstream parts distribution network
- Established Gulfstream service center network
- Major service operations in multiple regions
- Brand prestige
- Comprehensive engineering support
For owners considering Astra SPX vs G100 transactions, the operational support difference is meaningful: Gulfstream support is materially better for most operators than smaller IAI-era networks.
Inherited Design Features From Astra SPX
The G100 retains all Astra SPX design elements:
1. Honeywell TFE-731-40R-200G Engines
- 4,250 lbf per engine: One of the most powerful in midsize class
- Wider operating envelope: Better hot-and-high performance
- Strong cruise speed: 465 ktas at FL410
- Proven reliability: Established TFE731 family
2. Winglets
- Reduced drag: Improved cruise efficiency
- Range improvement: 2,517 nm NBAA
- Visual distinguishing feature: Identifies G100/SPX vs original Astra and SP
3. Rockwell Collins Pro Line 4
- Glass-panel cockpit: Modern for era
- System redundancy: Modern design
- Common retrofits: ADS-B Out, WAAS/LPV upgrades
4. 5,000-Hour Major Inspection Interval
- Longer maintenance interval: Lower operating costs
- Higher reliability: Inherited proven design
Cabin Interior
The G100 cabin retains the proven Astra SPX dimensions:
| Cabin Measurement | Value |
|---|---|
| Cabin Length | 17 ft 1 in |
| Cabin Width | 4 ft 9 in (57 inches) |
| Cabin Height | 5 ft 6 in (66 inches) |
| Cabin Volume | 375 cu ft |
Seating Configurations
- Standard 7-Passenger: Club-and-a-half seating arrangement
- 9 Maximum Certified: With belted lavatory
- Extra Seat in Lavatory Option: If required
- Aft Full-Width Lavatory: Standard
- Forward Galley: Standard
- Skylight Window: Distinctive feature
Cabin Features
- Engines mounted high/far back: Quieter cabin
- Newer interiors common: Many post-2001 aircraft have refurbished interiors
- 51 cu ft baggage: 9 internal + 42 external
- Skylight window: Unique to Astra family
Performance
Speed and Range
| Performance Metric | Value |
|---|---|
| Max Cruise Speed (FL410) | 465 ktas (Mach 0.82) |
| Normal Cruise | 450 ktas |
| Range (NBAA IFR) | 2,517 nm |
| Range (Seats Full) | 2,456 nm |
| Service Ceiling | 45,000 ft |
Runway Performance
| Field Performance | Value |
|---|---|
| Balanced Field Length | 5,000 ft |
| Landing Distance (Over 50 ft Obstacle) | 2,400 ft |
The G100 was designed to travel long distances, with the newer versions boasting coast-to-coast range in the United States.
Typical Mission Examples
- New York to Los Angeles (2,140 nm) - achievable with light load
- Miami to Bogotá (~1,500 nm) - comfortable
- London to Istanbul (~1,500 nm) - comfortable
- New York to Dallas (1,373 nm) - comfortable
Models fitted with extension fuel tanks (option) have less baggage space (6 suitcases) but extended range capability. Models without extension tanks fit more luggage.
Engines
Two Honeywell TFE-731-40R-200G turbofan engines, each producing 4,250 lbf of thrust (8,500 lbf total). One of the most powerful midsize engine configurations available, providing substantial performance margin.
Avionics
Rockwell Collins Pro Line 4 integrated avionics. Common retrofits include ADS-B Out, WAAS/LPV navigation, and modernized GPS systems.
Operating Costs
| Cost Item | Per Hour |
|---|---|
| Fuel (~220 gph) | $1,540 to $1,980 |
| Engine Reserve | $450 |
| Airframe Maintenance | $600 |
| Misc Variable | $350 |
| Total Variable Cost | ~$2,940 to $3,380/hr |
Annual operating budget at 450 hours: approximately $2.3 to $2.6 million all-in.
Average operating cost per AviaCost: $5,189/hr (450-hour basis).
Charter rates: $4,500 to $5,500 per hour.
Pricing
| Year | Pre-Owned Price |
|---|---|
| 2005 to 2006 G100 (final production) | $2,500,000 to $2,900,000 |
| 2003 to 2004 G100 | $2,200,000 to $2,500,000 |
| 2001 to 2002 G100 (early production) | $2,000,000 to $2,300,000 |
Average pre-owned: $1,700,000 (varies by source).
Mission Profile
Best fit profiles:
- Step-Up From Astra SPX: Same aircraft, better Gulfstream support
- Transcontinental U.S. Operators: 2,517 nm range
- Charter and Corporate Operators: Gulfstream-supported platform
- Owner-Operators: Strong value with Gulfstream backing
Less suited if:
- You need modern Garmin G5000 touchscreen avionics
- You require single-pilot certification (not certified)
- You want stand-up cabin (5'6" not full stand-up)
- You need newest production support (consider G150)
Pros and Cons
What the Gulfstream G100 Does Well
- 2,517 nm NBAA IFR range
- 465 ktas (Mach 0.82) cruise
- 45,000 ft service ceiling
- One of the most powerful engine setups in midsize class
- Winglet-improved aerodynamics
- Rockwell Collins Pro Line 4 avionics
- 5,000-hour maintenance interval
- 2,400 ft landing distance
- WORLDWIDE GULFSTREAM SUPPORT (vs IAI Astra SPX)
- Newly-fitted interiors common (still good charter solution)
Tradeoffs to Understand
- Same aircraft as Astra SPX (no aircraft improvements over SPX)
- 4'9" cabin width (narrower than newer competitors)
- 5'6" cabin height (not full stand-up)
- Production ended 2006
- Two-pilot operation required
- Most G100s now quite dated (20+ year old airframes)
- Replaced by G150 with better range/cabin
Frequently Asked Questions
Is the Gulfstream G100 the same as the Astra SPX?
Yes, mechanically identical. In 2001, Gulfstream acquired the IAI executive jet division and rebranded the Astra SPX as the G100. The aircraft, engines, avionics, and basic specifications are identical. The only differences are the brand identification and support infrastructure (worldwide Gulfstream network vs smaller IAI network).
How is the G100 different from the G150?
The Gulfstream G150 (2006-2017) is a substantially refined successor with longer range (2,691 nm seats full vs G100's 2,456 nm), larger cabin (5'9" W vs G100's 4'9" W), Pro Line 21 avionics (vs Pro Line 4), and modernized systems. The G150 is a meaningful upgrade in cabin width and range while maintaining Astra platform heritage.
How many Gulfstream G100s were built?
Production figures for the G100 (combined with Astra SPX) total approximately 80-100 aircraft. Specific Gulfstream G100 production (2001-2006) was a smaller subset of the broader Astra SPX program.
How far can a Gulfstream G100 fly?
The Gulfstream G100 has a maximum NBAA IFR range of 2,517 nautical miles, with seats-full range of 2,456 nm.
Is the G100 single-pilot certified?
No. The G100 requires two pilots.
What is the support situation for the G100?
Gulfstream provides worldwide parts distribution, service centers, and engineering support for the G100 platform. This is a substantial advantage over the smaller IAI executive jet support network that preceded the 2001 Gulfstream acquisition.
Should I buy an Astra SPX or G100?
Mechanically the aircraft are identical, so the decision should be based on aircraft condition, history, and post-2001 cabin upgrades (most G100s have refurbished interiors). Many operators prefer G100s for the Gulfstream brand association and clearer support infrastructure history.
What engines power the Gulfstream G100?
Two Honeywell TFE-731-40R-200G turbofan engines, each producing 4,250 lbf of thrust. Same engines as the Astra SPX predecessor.
The Bottom Line
The Gulfstream G100 is the post-2001 rebrand of the proven IAI Astra SPX with worldwide Gulfstream service infrastructure. While mechanically identical to the Astra SPX, the G100 benefits from substantially better parts distribution, service network, and brand association. At current pre-owned pricing of $1.7 million average ($2M-$2.9M Vref range), the G100 offers exceptional value as a 2,500 nm midsize jet with Gulfstream backing. The tradeoffs are real: 4'9" cabin width is narrow vs newer competitors, and production ended in 2006. But for operators valuing efficient transcontinental capability with the worldwide Gulfstream support network, the G100 represents the most-supported Astra-family variant.
Quantum Jets supports the platform across private jet charter, private jet rental, private jet card programs, aircraft purchase, jet purchase, jet sales, aircraft sales, aircraft management, jet management, private jet management, aircraft maintenance, aircraft refurbishment, fractional jet access, aircraft lease, and aircraft leasing structures.
Talk to a Quantum Jets broker for Gulfstream G100 market intelligence and pre-buy diligence.
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Book a Gulfstream G100 on the Quantum Jets App by AVIA Technologies
The Quantum Jets mobile app, built by AVIA Technologies, is the private jet charter marketplace app for the Gulfstream G100 and the rest of the Quantum Jets catalog. The Quantum Jets app is available as an iOS app on the Apple App Store and as an Android app on Google Play. Whether the goal is a one-off jet charter, recurring private jet rental, a private jet card program, or a deeper engagement spanning aircraft purchase, jet purchase, jet sales, aircraft management, jet management, private jet management, aircraft maintenance, aircraft refurbishment, fractional jet access, aircraft lease, aircraft leasing, or aircraft sales, the Quantum Jets app surfaces live Gulfstream G100 availability and routes the booking through the Quantum Jets brokerage team.
AVIA Technologies is the technology platform behind the Quantum Jets mobile app. The AVIA Technologies app powers the private jet charter marketplace experience: search the catalog, compare a Gulfstream G100 against alternatives in the same tier, pull live pricing, request a charter quote, schedule aircraft maintenance, list a Gulfstream G100 for jet sales, manage a fleet under aircraft management or private jet management, and execute a private jet card purchase, all from one private jet app. The Quantum Jets app and the AVIA Technologies app share the same backend so client data, trip history, and aircraft preferences carry across both surfaces.
Download the Quantum Jets app on the Apple App Store (iOS app) or Google Play (Android app), then search the Gulfstream G100 to start booking. The Quantum Jets mobile app is the fastest path from research to booking for any private jet, jet charter, private jet rental, or private jet charter marketplace transaction in the Quantum Jets catalog. AVIA Technologies maintains the private jet charter marketplace app on a continuous deployment schedule with new aircraft, new operators, and refined private jet management tooling shipping every release.
Gulfstream G100 Services from Quantum Jets
Quantum Jets supports Gulfstream G100 operators and prospective owners across the full lifecycle of private jet ownership. Whether the goal is jet charter for a one-off trip, a private jet rental for a busy season, or a private jet charter program tied to a recurring travel pattern, our team builds the right structure around the Gulfstream G100 for the mission.
For buyers, our aircraft purchase and jet purchase advisory walks through inspection, valuation, financing, and closing. Jet sales and aircraft sales clients work with our team to position the Gulfstream G100 for the strongest possible exit, with market intelligence on every comparable transaction. A private jet card program through Quantum Jets is a lower-commitment way to access Gulfstream G100-class lift without a full aircraft purchase, and is structured to credit toward a future jet purchase when the time is right.
Once an aircraft is in hand, aircraft management and jet management at Quantum Jets cover crew, scheduling, regulatory compliance, charter revenue programs, and detailed reporting. Private jet management is structured to keep the Gulfstream G100 flying safely and profitably with minimum owner overhead. Aircraft maintenance is coordinated through manufacturer-authorized service centers, and aircraft refurbishment programs (interior, paint, avionics, connectivity) are managed end-to-end so the Gulfstream G100 retains residual value over its operating life.
Fractional jet programs are available for Gulfstream G100-class travelers who want guaranteed access without sole ownership. Aircraft lease and aircraft leasing arrangements (operating, finance, dry, wet) are structured to match the operator's hours, geography, and balance sheet. The Gulfstream G100 fits naturally into all of these structures, and Quantum Jets handles the structuring, documentation, and lifecycle service so the owner can focus on flying.
If you are evaluating a Gulfstream G100 for purchase, charter, lease, fractional access, management, refurbishment, or sale, talk to a Quantum Jets broker for a custom market scan and pre-buy diligence.
Related Aircraft Guides:
- IAI Astra SPX: Pre-2001 Same Aircraft (Different Brand and Support)
- Gulfstream G150: Direct Successor (Extended Range, Wider Cabin)
- IAI Astra SP: Earlier Astra Variant (Pre-Winglets)
Production of the Gulfstream G100 ended in 2006. All acquisitions are pre-owned. Gulfstream provides parts/support. Specifications accurate as of 2026.