Light Jet - Legacy Production
Learjet 25D: Complete Specs, Performance, and Buyer's Guide (2026)
Learjet (later Bombardier)
Learjet 25D: Complete Specs, Performance, and Buyer's Guide (2026)
The Learjet 25D, produced from 1976 to 1985, is the most-refined variant of the stretched Learjet 25 family that brought meaningfully larger cabin capacity to the original Learjet 24 platform. Powered by twin General Electric CJ610-8A turbojets producing 2,950 lbf each, the 25D delivers 1,246 nautical miles of range, 460+ ktas cruise, and a 51,000 ft service ceiling typically operated with two pilots. A total of 164 Learjet 25D aircraft were built during the nine-year production run. The 25D introduced aerodynamic refinements including a recontoured leading edge that improved cruise performance and low-speed handling. Pre-owned market today: $250,000 to $600,000.
For operators wanting one of the more-attainable vintage Learjet variants with more cabin space than the 24, the 25D remains a recognizable acquisition. The major caveat: Stage 3 noise compliance restrictions apply.
Learjet 25D Specifications at a Glance
| Specification | Value |
|---|---|
| Category | Light Jet - Legacy Production |
| Production Status | Discontinued 1985 |
| Production Years | 1976 to 1985 |
| Total Units Built | 164 |
| Total Learjet 25 Family | ~365 (includes 25, 25B, 25C, 25D, 25G) |
| Original 25 First Flight | August 12, 1966 |
| 25 FAA Certification | October 10, 1967 |
| Crew | 2 pilots |
| Passengers (Standard) | 6 |
| Passengers (Max) | 10 (high density) |
| Max Range | 1,246 nm |
| Range (Long-Range Cruise, all seats filled) | 895 nm |
| Max Cruise Speed | 460 to 480 ktas |
| Long-Range Cruise | 420 ktas |
| Max Operating Altitude | 51,000 ft |
| Engines | 2× General Electric CJ610-8A turbojets |
| Thrust per Engine | 2,950 lbf (5,900 lbf total) |
| Engine Inspection Interval | 5,000 hours |
| Max Takeoff Weight | 15,000 lbs |
| Fuselage Stretch Over 24 | 4.2 ft (3 ft cabin extension) |
| Cabin Length | 12 ft 1 in |
| Cabin Width | 4.9 ft (59 in) |
| Cabin Height | 4.3 ft (52 in) |
| Total Baggage Volume | 40 cu ft (in-cabin only) |
| Balanced Field Length | 3,937 ft |
| Pre-Owned Price (2025) | $250,000 to $600,000 |
History as the Stretched Learjet
The Learjet 25 was the first stretched Learjet, designed concurrently with the Learjet 24 but adding a 4.2-foot fuselage plug that increased cabin length by approximately 3 feet. This stretch enabled six passengers in standard configuration (versus four in the 24) and the option for up to 10 passengers in high-density layouts.
Platform timeline:
- August 12, 1966: Learjet 25 first flight
- October 10, 1967: FAA certification
- November 1967: First customer deliveries
- Late 1970: Learjet 25B introduced
- 1971: Learjet 25C introduced with additional fuel capacity
- 1976: Learjet 25D introduced with aerodynamic refinements
- 1976-1985: 25D production run (164 aircraft)
- 1985: Production ends
The Gates Learjet 25 family was sold under the "Gates Learjet" brand during much of its production, reflecting the corporate ownership at the time.
Key Improvements: 25D vs Earlier 25 Variants
The Learjet 25D introduced multiple refinements over the 25, 25B, and 25C:
- Recontoured leading edge: Improved cruise performance and low-speed handling
- CJ610-8A engines (2,950 lbf): Upgraded from earlier CJ610-4 (2,850 lbf)
- 51,000 ft ceiling capability: Same as Learjet 24E
- Reduced runway requirement: 3,937 ft balanced field length
- 5,000 hour engine inspection interval: Improved from earlier variants
Cabin Interior
The 4.2 ft fuselage stretch over the Learjet 24 transformed the cabin from a 4-passenger to a 6-passenger executive jet:
| Cabin Measurement | Value |
|---|---|
| Cabin Length | 12 ft 1 in |
| Cabin Width | 4.9 ft (59 inches) |
| Cabin Height | 4.3 ft (52 inches) |
Seating Configurations
- Standard 6-Passenger: Four individual forward-facing seats + full-width bench seat aft
- Up to 10 Maximum: High-density configurations
- Half-Width Lavatory: Forward starboard side, across from airstair door
Cabin Features
- 40 cu ft baggage compartment: Aft of fold-down bench seat, accessible only from inside the cabin
- Half-width lavatory: Forward starboard
- No external baggage: All baggage accessed in-cabin
Performance
Speed and Range
| Performance Metric | Value |
|---|---|
| Max Cruise Speed | 460 to 480 ktas |
| Long-Range Cruise | 420 ktas |
| Range (Maximum) | 1,246 nm |
| Range (Seats Full, Long-Range) | 895 nm |
| Service Ceiling | 51,000 ft |
Runway Performance
| Field Performance | Value |
|---|---|
| Balanced Field Length | 3,937 ft |
Engines
Two General Electric CJ610-8A turbojet engines, each producing 2,950 lbf of thrust (5,900 lbf total). Engine inspection interval: 5,000 hours.
Important note: These are turbojet engines (not turbofan). Stage 3 noise compliance is required for U.S. operations since December 31, 2015. Many 25Ds remain operational only with hush kit modifications.
Avionics
Typical Learjet 25D avionics package includes:
- Dual Collins VHF 20 communications
- Dual VIR 20 navigation receivers
- Bendix RDS 81 color weather radar
- Collins FD108 flight director
- FC110 autopilot
Most surviving 25Ds have been retrofit with modern avionics including GPS, ADS-B Out, WAAS/LPV navigation.
Operating Costs
| Cost Item | Per Hour |
|---|---|
| Fuel (turbojet ~240 gph) | $1,680 to $2,160 |
| Engine Reserve | $350 |
| Airframe Maintenance | $500 |
| Misc Variable | $300 |
| Total Variable Cost | ~$2,830 to $3,310/hr |
Operating costs are among the highest in the light jet class due to turbojet engine fuel burn.
Pricing
| Year Range | Price Range |
|---|---|
| 1983 to 1985 Learjet 25D (final production) | $400,000 to $600,000 |
| 1980 to 1982 Learjet 25D | $300,000 to $500,000 |
| 1976 to 1979 Learjet 25D (early production) | $250,000 to $400,000 |
Mission Profile
Best fit profiles:
- Step-Up From Learjet 24: Same family, more cabin capacity
- Aviation Enthusiasts: Vintage Learjet ownership at attainable cost
- Specialty Operations: Cargo or specialty roles where speed matters
- Buyers With Stage 3 Hush Kit Aircraft: Acceptable U.S. operations
Less suited if:
- You need to operate at noise-restricted airports (Stage 3 essential)
- You require modern fuel economics
- You need transcontinental range
- You want modern cabin comfort
- You require single-pilot certification
Pros and Cons
What the Learjet 25D Does Well
- 4.2 ft stretch over Learjet 24 (6-passenger capability)
- 51,000 ft service ceiling
- 460+ ktas cruise
- Distinctive Learjet heritage and ramp presence
- 5,000 hour engine inspection interval
- 164 in-service fleet (much more than rare 24E)
- Aerodynamic refinements over earlier 25 variants
Tradeoffs to Understand
- Turbojet engines: Stage 3 noise issue, very high fuel burn
- All baggage in-cabin (40 cu ft, no external)
- Cabin still small by modern standards
- 1,246 nm range modest
- 50+ year old airframe parts challenges
- Two-pilot operation required
Frequently Asked Questions
How is the Learjet 25D different from earlier Learjet 25 variants?
The 25D (1976) introduced a recontoured leading edge for improved cruise performance and low-speed handling, plus upgraded CJ610-8A engines (2,950 lbf vs 2,850 lbf on earlier 25/25B/25C), 51,000 ft ceiling capability, and reduced runway requirements.
How many Learjet 25D aircraft were built?
A total of 164 Learjet 25D aircraft were built during the 1976 to 1985 production run.
Is the Learjet 25D Stage 3 noise compliant?
The Learjet 25D uses CJ610-8A turbojet engines that are NOT Stage 3 noise compliant. Operations in the U.S. require hush kit modification or specific exemption since December 31, 2015.
How is the Learjet 25 different from the Learjet 24?
The Learjet 25 is a stretched version of the 24, with a 4.2-foot fuselage plug that adds approximately 3 feet of cabin length. The 25 can seat 6 passengers (10 maximum) vs the 24's 4 passengers (6 maximum).
How far can a Learjet 25D fly?
The Learjet 25D has a maximum range of 1,246 nautical miles, with seats-full long-range capability of approximately 895 nm.
Is the Learjet 25D single-pilot certified?
No. The Learjet 25D requires two pilots.
What engines power the Learjet 25D?
Two General Electric CJ610-8A turbojet engines, each producing 2,950 lbf of thrust.
The Bottom Line
The Learjet 25D is the most-refined variant of the stretched Learjet 25 family, offering more cabin space than the foundational Learjet 24 at attainable acquisition cost. The 164-aircraft fleet provides meaningful parts and operator support compared to the rarer 24 family variants. The major caveats are real: turbojet engines mean Stage 3 noise compliance issues and very high fuel burn, all baggage is in-cabin, and the 1,246 nm range is modest. For aviation enthusiasts wanting vintage Learjet ownership at sub-$600K cost, the 25D remains an option, but operating economics and Stage 3 restrictions should be carefully evaluated.
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 Learjet 25D market intelligence, pre-buy diligence with attention to engine programs, hush kit status, and Stage 3 compliance.
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Book a Learjet 25D 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 Learjet 25D 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 Learjet 25D 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 Learjet 25D against alternatives in the same tier, pull live pricing, request a charter quote, schedule aircraft maintenance, list a Learjet 25D 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 Learjet 25D 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.
Learjet 25D Services from Quantum Jets
Quantum Jets supports Learjet 25D 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 Learjet 25D 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 Learjet 25D 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 Learjet 25D-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 Learjet 25D 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 Learjet 25D retains residual value over its operating life.
Fractional jet programs are available for Learjet 25D-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 Learjet 25D 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 Learjet 25D 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:
- Learjet 24E: Predecessor Variant
- Learjet 35A: Turbofan Successor
- Learjet 31A: Modernized Successor
Production of the Learjet 25D ended in 1985. All acquisitions are pre-owned. Stage 3 noise compliance must be verified for U.S. operations. Specifications accurate as of 2026.