Midsize Jet - Modernized Vintage
Dassault Falcon 20F-5B (TFE731 Retrofit): Complete Specs, Performance, and Buyer's Guide (2026)
Dassault Aviation (with TFE731 retrofit)
Dassault Falcon 20F-5B (TFE731 Retrofit): Complete Specs, Performance, and Buyer's Guide (2026)
The Dassault Falcon 20F-5B is the TFE731-retrofitted variant of the original Falcon 20F, representing one of business aviation's most successful aftermarket modernization programs. The retrofit replaces the original General Electric CF700 turbojet-style engines (noisy, fuel-inefficient, Stage 3 non-compliant) with modern Honeywell TFE731-5 turbofan engines (quieter, dramatically more efficient, Stage 3 compliant). The conversion is so successful that performance numbers between a retrofitted Falcon 20F-5B and a factory Falcon 200 are virtually identical. Over 100 Falcon 20s have been converted to this configuration, representing the smart approach to modernizing the foundational Dassault business jet platform for continued operational utility. The Falcon 20F-5B delivers 2,194 nautical miles of seats-full range (up from 1,307 nm in the original Falcon 20F), 455 ktas cruise speed (up from 435 ktas), and a 42,000 ft service ceiling. The cabin retains the 5 ft 8 in stand-up dimensions with seating for 9 passengers. The aircraft is operated by two pilots. Pre-owned market today: $500K to $1.2 million (Falcon 20F-5B); $700K to $1.5 million (Falcon 20F-5BR with -5BR engines).
For operators wanting a modernized vintage Falcon platform with extended range and Stage 3 noise compliance at exceptional value, the Falcon 20F-5B represents one of the smartest paths to attainable Dassault business jet ownership.
Falcon 20F-5B Specifications at a Glance
| Specification | Value |
|---|---|
| Category | Midsize Jet - Modernized Vintage |
| Production Status | Original 1970-1988; TFE731 retrofit ongoing |
| Designation | Dassault Falcon 20F-5 / 20F-5B / 20F-5BR |
| Manufacturer (Original) | Dassault Aviation |
| Retrofit Programs | Multiple specialty providers |
| Original Production Years | 1970 to 1988 |
| Retrofit Era | 1990s to present |
| Predecessor Variant | Falcon 20F (original CF700 engines) |
| Sibling Variant | Falcon 20F-5BR (improved -5BR engines) |
| Total Conversions | Over 100 |
| Crew | 2 pilots |
| Passengers (Standard) | 9 |
| Engines (After Retrofit) | 2× Honeywell TFE731-5 turbofans |
| Stage 3 Noise Compliance | Yes (vs original CF700 non-compliant) |
| Max Range (NBAA IFR, Seats Full) | 2,194 nm |
| Max Cruise Speed | 455 ktas (524 mph) |
| Max Operating Altitude | 42,000 ft |
| Performance vs Factory Falcon 200 | Virtually identical |
| Cabin Length | 24 ft 4 in |
| Cabin Width | 6 ft 1 in |
| Cabin Height | 5 ft 8 in (stand-up) |
| Total Baggage Volume | 60 cu ft (internal) |
| Balanced Field Length | 5,167 ft |
| Landing Distance | 3,055 ft (5B), 2,673 ft (5BR) |
| Pre-Owned Average | $980,000 |
| Pre-Owned Range (2025) | $500,000 to $1,500,000 |
| Variable Operating Cost | $5,613/hr (450-hr basis) |
History as the Smart Modernization Program
The Falcon 20F-5B program represents one of business aviation's most successful aftermarket modernization initiatives. With the original CF700-powered Falcon 20F facing Stage 3 noise compliance issues (effective December 31, 2015 in the U.S.) and limited operational range, the TFE731-5 retrofit transformed the platform into a modernized, fuel-efficient, compliant aircraft suitable for continued long-term operations.
Platform timeline:
- 1990s: TFE731 retrofit programs developed
- 1990s-2000s: Major conversion era
- December 31, 2015: U.S. Stage 3 noise compliance deadline (original CF700 non-compliant)
- Today: Over 100 conversions completed, additional ongoing
- Future: Continued utility into 2030s with TFE731 reliability
The retrofit is so successful that performance is virtually identical to the factory Falcon 200 (1983-1988), which similarly featured upgraded engines for the Falcon 20 family.
Why the TFE731 Retrofit Is Transformative
The Falcon 20F-5B conversion delivers dramatic improvements:
1. Range Dramatically Improved
- 2,194 nm vs original 1,307 nm: +68% range improvement
- True transcontinental U.S. operations: vs Falcon 20F's regional limitations
- Newark to Chicago non-stop: With headwinds (Falcon 20F required Ohio stop)
2. Stage 3 Noise Compliance
- Quiet operation: Modern TFE731 turbofan technology
- U.S. operations permitted: Without hush kit modifications
- Worldwide compliance: Modern operating envelope
- CRITICAL OPERATIONAL ADVANTAGE: Original CF700 requires hush kits or restrictions
3. Dramatically Improved Fuel Efficiency
- Modern turbofan technology: Per Honeywell TFE731-5
- Lower fuel burn: Modern operating economics
- Better operating costs: Vs CF700-powered original
- Modern reliability: Established TFE731 family ubiquity
4. Performance Improvements
- 455 ktas cruise: vs 435 ktas original
- Improved climb rate: Modern engine performance
- Better hot-and-high performance: TFE731 advantages
- Same airframe handling: Fighter-jet tolerances retained
5. Modern Parts and Service Network
- TFE731 family ubiquity: Most common business jet engine family
- Parts plentiful: Wide service network
- Most shops know it: Maintenance accessibility
- Established hourly cost maintenance plans: Operating cost predictability
Falcon 20F-5 Family Variants
The conversion program produced several variants:
| Variant | Engine | Key Differences |
|---|---|---|
| Falcon 20F-5 | TFE731-5 | Initial retrofit configuration |
| Falcon 20F-5B | TFE731-5 (B variant) | Refined retrofit |
| Falcon 20F-5BR | TFE731-5BR | Latest retrofit (improved engines) |
The 5BR engines provide additional performance benefits with the most advanced TFE731 variant.
Cabin Interior
The Falcon 20F-5B cabin retains the original Falcon 20 stand-up configuration:
| Cabin Measurement | Value |
|---|---|
| Cabin Length | 24 ft 4 in |
| Cabin Width | 6 ft 1 in |
| Cabin Height | 5 ft 8 in (stand-up) |
| Total Baggage Volume | 60 cu ft (internal) |
Seating Configurations
- Standard 9-Passenger: Various executive layouts
- Forward Galley: Standard
- Aft Lavatory: Standard
- Internal Baggage: Standard
- Interior refurbishment common: ~$75K typical refresh
Performance
Speed and Range (After TFE731 Retrofit)
| Performance Metric | Value |
|---|---|
| Max Cruise Speed | 455 ktas (524 mph) |
| Normal Cruise Speed | 440 ktas |
| Range (NBAA IFR, Seats Full) | 2,194 nm |
| Service Ceiling | 42,000 ft |
Runway Performance
| Field Performance | Value |
|---|---|
| Balanced Field Length | 5,167 ft |
| Landing Distance (5B) | 3,055 ft |
| Landing Distance (5BR) | 2,673 ft |
Comparison to Falcon 200
Per Business Jet Traveler: "Performance numbers between a retrofitted Falcon 20F-5B and a factory Falcon 200 are virtually identical." Both deliver:
- ~2,000-2,200 nm range
- ~455 ktas cruise
- Modern Honeywell engines (TFE731-5 in 20F-5B vs ATF3-6A in 200)
- Stage 3 noise compliance
The key difference: TFE731-5 in 20F-5B is much more common than ATF3-6A in Falcon 200, providing better parts/service support.
Engines (After Retrofit)
Two Honeywell TFE731-5 (or TFE731-5BR) turbofan engines.
Key advantages of TFE731:
- Ubiquitous engine family: Parts plentiful
- Most shops know it: Maintenance accessibility
- Engine overhaul interval: 4,200 hours typical
- Engine overhaul cost: $250,000 each (average)
- Hourly cost maintenance plans: Available
Avionics
Falcon 20F-5B avionics are typically retrofitted to modern standards:
- Common retrofits: Garmin GPS, WAAS/LPV, ADS-B Out
- Modern weather radar: Standard
- Updated communications: Modern
- Modern autopilot integration: Standard
Operating Costs
| Cost Item | Per Hour |
|---|---|
| Fuel (TFE731 efficient) | $1,500 to $1,900 |
| Engine Reserve | $500 |
| Airframe Maintenance | $800 |
| Misc Variable | $400 |
| Total Variable Cost | ~$3,200 to $3,600/hr |
Annual operating budget at 450 hours: approximately $2.5 million all-in.
Variable operating cost per AviaCost: $5,613/hr (all-in 450-hour basis).
The TFE731 retrofit substantially improves operating economics vs original CF700 configuration.
Pricing
| Variant | Pre-Owned Price |
|---|---|
| Falcon 20F-5B (TFE731 Retrofit) | $500,000 to $1,200,000 |
| Falcon 20F-5BR (TFE731-5BR Retrofit) | $700,000 to $1,500,000 |
Average pre-owned (20F-5): $980,000.
The conversion premium over original Falcon 20F is typically $300K-$700K, reflecting the substantial value added by the engine retrofit.
Mission Profile
Best fit profiles:
- Step-Up From Original Falcon 20F: Major operational improvements
- Stage 3 Compliant Vintage Operations: U.S.-friendly
- Owner-Operators Seeking Falcon 200 Alternative: Better parts support
- Aviation Enthusiasts: Modernized foundational Dassault platform
- Charter Operators With Cost-Conscious Operations: Strong value
Less suited if:
- You need modern integrated avionics out of box (typically retrofitted)
- You require single-pilot certification (not certified)
- You want modern factory product support
- You require winglets or modern aerodynamic refinements
- You need transcontinental U.S. coast-to-coast (2,194 nm marginal)
Pros and Cons
What the Falcon 20F-5B Does Well
- 2,194 nm range (vs Falcon 20F's 1,307 nm)
- 455 ktas cruise (vs Falcon 20F's 435 ktas)
- Stage 3 noise compliant (CF700 was not)
- Honeywell TFE731-5 ubiquity (parts plentiful)
- Performance virtually identical to factory Falcon 200
- Fighter-jet tolerance airframe (unlimited life)
- 5'8" stand-up cabin
- 60 cu ft internal baggage
- 4,200-hour engine overhaul interval
- Modern operating economics
- Strong specialty service network
Tradeoffs to Understand
- Two-pilot operation required
- 35+ year old airframes
- Avionics typically retrofitted
- Interior typically requires refurbishment
- Limited modern factory product support
- Conversion premium over original Falcon 20F
Frequently Asked Questions
What is the Falcon 20F-5B?
The Falcon 20F-5B is a Falcon 20F that has been retrofitted with Honeywell TFE731-5 turbofan engines (replacing the original GE CF700 engines). The conversion dramatically improves range (1,307 nm → 2,194 nm), provides Stage 3 noise compliance, and modernizes fuel efficiency and operating economics. The performance is virtually identical to the factory Falcon 200.
How is the Falcon 20F-5B different from the Falcon 200?
Performance-wise, they're virtually identical (2,000-2,200 nm range, 455 ktas cruise, Stage 3 compliant). The key differences: The Falcon 200 was factory-built (1983-1988, 35 produced) with the Garrett ATF3-6A engine. The Falcon 20F-5B is an aftermarket TFE731-5 retrofit of an original Falcon 20F (over 100 conversions). The Falcon 20F-5B is generally preferred for the more common TFE731 engine family with better parts/service support.
What is the Falcon 20F-5BR?
The Falcon 20F-5BR is the most advanced TFE731 retrofit variant, using the TFE731-5BR engines (latest TFE731-5 variant). Performance is similar to the -5B but with the latest engine variant improvements.
How many Falcon 20s have been converted to TFE731?
Over 100 Falcon 20s have been converted with TFE731-5 retrofits (Falcon 20F-5/5B/5BR variants).
Is the Falcon 20F-5B Stage 3 noise compliant?
Yes. The Honeywell TFE731-5 turbofan engines provide Stage 3 noise compliance without hush kit modifications. This is a critical operational advantage over the original CF700-powered Falcon 20F.
Is the Falcon 20F-5B single-pilot certified?
No. The Falcon 20F-5B requires two pilots.
Should I buy a Falcon 20F-5B or a Falcon 200?
Both deliver virtually identical performance. The Falcon 20F-5B is generally preferred for: more common TFE731 engine family (vs Falcon 200's less common ATF3), better parts and service network, larger fleet (100+ conversions vs 35 Falcon 200s), and substantial existing operator base. The Falcon 200 is preferred for: original factory production status, original engineering integration, and collector value.
What engines power the Falcon 20F-5B?
Two Honeywell TFE731-5 turbofan engines (or TFE731-5BR in the 5BR variant).
The Bottom Line
The Dassault Falcon 20F-5B represents one of business aviation's most successful aftermarket modernization programs, transforming the original Falcon 20F into a modern, fuel-efficient, Stage 3-compliant business jet with performance virtually identical to the factory Falcon 200. With over 100 conversions completed and ongoing additional retrofits, the platform offers substantial operator support and proven reliability. At current pre-owned pricing of $500K to $1.5 million (depending on -5B vs -5BR variant), the Falcon 20F-5B offers exceptional value as a modernized vintage Falcon platform. The combination of TFE731 engine ubiquity (vs Falcon 200's less common ATF3), substantial fleet support, and dramatic capability improvements over the original Falcon 20F makes the 20F-5B a smart path to attainable Falcon family ownership.
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 Falcon 20F-5B market intelligence and pre-buy diligence.
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Dassault Falcon 20F-5B (TFE731 Retrofit) Services from Quantum Jets
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Related Aircraft Guides:
- Dassault Falcon 20F: Pre-Retrofit Original Variant (CF700 Engines)
- Dassault Falcon 200: Factory-Built Performance Variant (ATF3 Engines)
- Dassault Falcon 50: Trijet Super-Midsize Sibling
Falcon 20F-5B aircraft are retrofitted versions of original 1970-1988 Falcon 20F airframes. All acquisitions are pre-owned. TFE731-5 retrofit provides Stage 3 noise compliance and modern operating economics. Specifications accurate as of 2026.