Midsize Jet - Legacy Production
IAI Astra SPX: Complete Specs, Performance, and Buyer's Guide (2026)
Israel Aircraft Industries (IAI) / Gulfstream (post-2001)
IAI Astra SPX: Complete Specs, Performance, and Buyer's Guide (2026)
The IAI Astra SPX (Model 1125 Astra SPX), produced from 1994 to 2001 and later rebranded as the Gulfstream G100 from 2001 to 2006, is the substantially upgraded third generation of Israel Aircraft Industries' Astra business jet platform. The SPX introduced winglets (a distinguishing visual feature), more powerful Honeywell TFE-731-40R-200G engines producing 4,250 lbf each (vs the SP's 3,700 lbf TFE731-3), Rockwell Collins Pro Line 4 avionics, and improved range. The Astra SPX delivers 2,517 nautical miles of range with NBAA IFR reserves, 465 ktas (Mach 0.82) maximum cruise at FL410, a 45,000 ft service ceiling, and is operated by two pilots with seating for up to 9 passengers. In 2001, Gulfstream acquired the IAI executive jet division and rebranded the SPX as the Gulfstream G100 until production ended in 2006. Pre-owned market today: $1.7 million average ($2M-$2.9M range per Vref).
For operators seeking the most-capable Astra variant with Gulfstream support infrastructure, the SPX/G100 represents the platform's apex.
IAI Astra SPX Specifications at a Glance
| Specification | Value |
|---|---|
| Category | Midsize Jet - Legacy Production |
| Production Status | Discontinued 2006 (as Gulfstream G100) |
| Designation | IAI 1125 Astra SPX (later Gulfstream G100) |
| Manufacturer | IAI (1994-2001), Gulfstream (2001-2006) |
| Introduced | 1994 |
| Production Years (Total) | 1994 to 2006 |
| Production Years (IAI Astra SPX) | 1994 to 2001 |
| Production Years (Gulfstream G100) | 2001 to 2006 |
| Predecessor | Astra SP (1990-1995) |
| Successor | Gulfstream G150 (2005-2017) |
| 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) |
| Engine Thrust Upgrade Over SP | +550 lbf per engine (+15%) |
| Winglets | Yes (distinguishing visual feature) |
| Avionics | Rockwell Collins Pro Line 4 |
| Maintenance Major Inspection | 5,000-hour interval |
| 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 (some sources 304) |
| 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 Price Range (Vref) | $2,000,000 (1996) to $2,900,000 (2001) |
| Average Operating Cost | $5,189/hr |
History as the Astra Platform Apex
The Astra SPX represented the most-refined evolution of the Astra platform, with winglets and more powerful engines delivering substantial performance improvements over the predecessor SP.
Platform timeline:
- 1985: Original Astra introduced
- 1990: Astra SP introduced (aerodynamic wing redesign)
- 1994: Astra SPX introduced (TFE731-40R, winglets)
- 1994-2001: Astra SPX production as IAI
- 2001: Gulfstream acquires IAI executive jet division
- 2001: Astra SPX rebranded as Gulfstream G100
- 2001-2006: G100 production
- 2005: Gulfstream G150 introduced (Astra SPX successor)
- 2006: G100 production ends in favor of G150
- 2017: G150 production ends
The Gulfstream G100 designation reflects the same aircraft as the Astra SPX, with worldwide Gulfstream support infrastructure.
Key Improvements Over Astra SP
The Astra SPX introduced multiple substantial upgrades:
1. Honeywell TFE-731-40R-200G Engines
The substantially more powerful engines replaced the SP's TFE731-3:
- 4,250 lbf per engine: vs SP's 3,700 lbf (+550 lbf, +15%)
- One of the most powerful setups in midsize class: Strong performance
- Better hot-and-high performance: Critical operational benefit
- Higher cruise speed: 465 ktas vs SP's 460 ktas
- Improved climb performance: Faster to cruise altitude
2. Winglets
The SPX introduced winglets as a distinguishing visual feature:
- Reduced drag: Improved cruise efficiency
- Range improvement: 2,517 nm NBAA vs SP's 2,330 nm
- Better high-speed handling: Modern aerodynamics
- Visual distinction: Easy identification vs SP
3. Rockwell Collins Pro Line 4 Avionics
Modern glass-panel avionics suite:
- Advanced situational awareness: Standard
- System redundancy: Modern design
- Modern flight management: Integrated
- Common retrofits: ADS-B Out, WAAS/LPV
4. Maintenance Efficiency
- 5,000-hour major inspection interval: Lower operating costs
- Higher reliability: Improved systems
5. Increased Service Ceiling
- 45,000 ft operating altitude: Up from SP's 39,700 ft
Cabin Interior
The Astra SPX cabin features comfortable midsize proportions:
| 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 option
- Aft full-width lavatory: Standard
- Forward galley: Standard
- Skylight window: Distinctive feature
Cabin Features
- Engines mounted high and far back: Quieter cabin
- Full-width aft lavatory: Comfort upgrade
- Forward galley: Refreshment center
- Skylight window: Unique cabin feature
- 51 cu ft baggage: 9 internal + 42 external
Performance
Speed and Range
| Performance Metric | Value |
|---|---|
| Max Cruise Speed (FL410) | 465 ktas (Mach 0.82) |
| Cruise Speed (Full Fuel) | 488 ktas |
| Normal Cruise | 450 ktas |
| Range (NBAA IFR) | 2,517 nm |
| Range (Seats Full) | 2,456 nm |
| Range (Typical Operational) | 2,300 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 |
Typical Mission Examples
- New York to Dallas (1,373 nm)
- Los Angeles to Chicago (1,512 nm)
- Miami to Bogotá (~1,500 nm)
- London to Istanbul (~1,500 nm)
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 engine setups in the midsize jet class, providing substantial performance margin.
Avionics
Rockwell Collins Pro Line 4 integrated avionics:
- Glass cockpit: Modern for era
- Advanced situational awareness: Standard
- System redundancy: Modern design
- Flight management system: Integrated
- Common retrofits: ADS-B Out, WAAS/LPV, Garmin avionics upgrades
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 | Price Range |
|---|---|
| 2001 Astra SPX / Early G100 | $2,500,000 to $2,900,000 |
| 1998 to 2000 Astra SPX | $2,000,000 to $2,500,000 |
| 1996 to 1997 Astra SPX (early production) | $1,700,000 to $2,000,000 |
Average pre-owned: $1,700,000.
Mission Profile
Best fit profiles:
- Step-Up From Astra SP: Winglets, more powerful engines, higher ceiling
- Transcontinental Operators: 2,517 nm range
- Charter and Corporate Operators: Gulfstream support infrastructure
- Owner-Operators: Strong value at $1.7M average pre-owned
Less suited if:
- You need modern Garmin G5000 touchscreen avionics
- You require single-pilot certification
- You want stand-up cabin (5'6" not full stand-up)
- You need newer fuel efficiency
Pros and Cons
What the Astra SPX Does Well
- 2,517 nm NBAA IFR range
- 465 ktas (Mach 0.82) cruise
- 45,000 ft service ceiling
- Winglet-improved aerodynamics
- TFE731-40R engines (4,250 lbf - very powerful for class)
- Rockwell Collins Pro Line 4 avionics
- 5,000-hour maintenance interval
- 2,400 ft landing distance over 50 ft obstacle
- Engines mounted high/far back (quieter cabin)
- Gulfstream support infrastructure (post-2001)
- Worldwide Gulfstream parts/service network
Tradeoffs to Understand
- 4'9" cabin width (narrower than newer competitors)
- 5'6" cabin height (not full stand-up)
- 6-7 typical passenger capacity
- Production ended 2006
- Two-pilot operation required
- Avionics dated vs current Garmin G5000
Frequently Asked Questions
How is the Astra SPX different from the Astra SP?
The Astra SPX (1994) introduced more powerful TFE-731-40R engines (4,250 lbf vs SP's 3,700 lbf), winglets (visual distinguishing feature), Rockwell Collins Pro Line 4 avionics, higher 45,000 ft service ceiling (vs SP's 39,700 ft), and improved range (2,517 nm vs SP's 2,330 nm).
Is the Astra SPX the same as the Gulfstream G100?
Yes. In 2001, Gulfstream acquired the IAI executive jet division and rebranded the Astra SPX as the Gulfstream G100. The aircraft was the same; only the name and support infrastructure changed. G100 production continued until 2006.
How many Astra SPX/G100 aircraft were built?
The Astra family includes multiple variants. The Astra SPX/G100 production from 1994 to 2006 produced a meaningful fleet, though specific production totals vary by source. The combined Astra/Westwind family includes 240+ aircraft globally.
How far can an Astra SPX fly?
The Astra SPX has a maximum NBAA IFR range of 2,517 nautical miles, with seats-full range of 2,456 nm and typical operational range of 2,300 nm.
Is the Astra SPX single-pilot certified?
No. The Astra SPX requires two pilots.
What was the Gulfstream acquisition impact?
In 2001, Gulfstream acquired IAI's executive jet division, gaining the Astra SPX (renamed G100) and the larger Galaxy (renamed G200) platforms. Customers benefited from worldwide Gulfstream support infrastructure, including a comprehensive parts network and service operations. Most current Astra SPX/G100 operators rely on Gulfstream's support network.
What replaced the Astra SPX/G100?
The Gulfstream G150 (2005-2017) replaced the G100. The G150 was a substantial refinement with extended range, larger cabin, and modernized systems while maintaining the broader Astra platform heritage.
The Bottom Line
The IAI Astra SPX, later rebranded as the Gulfstream G100, represents the apex of the proven Astra platform with winglets, powerful TFE-731-40R engines, and Pro Line 4 avionics. With Gulfstream support infrastructure providing worldwide parts and service, the platform retains strong operational viability. At current pre-owned pricing of $1.7 million average, the SPX/G100 offers exceptional value as a 2,500 nm midsize jet with proven engineering. The tradeoffs are real: 4'9" cabin width and 5'6" cabin height are narrow vs newer competitors, and production ended in 2006. But for operators valuing efficient transcontinental capability with Gulfstream backing, the Astra SPX/G100 delivers.
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 Astra SPX / Gulfstream G100 market intelligence and pre-buy diligence.
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Book a IAI Astra SPX 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 IAI Astra SPX 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 IAI Astra SPX 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 IAI Astra SPX against alternatives in the same tier, pull live pricing, request a charter quote, schedule aircraft maintenance, list a IAI Astra SPX 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 IAI Astra SPX 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.
IAI Astra SPX Services from Quantum Jets
Quantum Jets supports IAI Astra SPX 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 IAI Astra SPX 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 IAI Astra SPX 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 IAI Astra SPX-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 IAI Astra SPX 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 IAI Astra SPX retains residual value over its operating life.
Fractional jet programs are available for IAI Astra SPX-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 IAI Astra SPX 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 IAI Astra SPX 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 SP: Predecessor Variant (Pre-Winglets, Pre-TFE731-40R)
- Gulfstream G100: Same Aircraft, Post-2001 Rebrand
- Gulfstream G150: Direct Successor With Extended Range
Production of the Astra SPX / Gulfstream G100 ended in 2006. All acquisitions are pre-owned. Gulfstream provides parts/support. Specifications accurate as of 2026.