Gates Learjet Model 28 and Model 29 Longhorn

Learjet 28/29 in flight (NASA photo). · Photo: NASA via Wikimedia Commons, Public domain

Learjet · Light Jet

Learjet 28 / 29 Longhorn

Built 1979–1982Out of production2 pilots

The winglet version of the Learjet 25 and the last new Learjet design with the original turbojet engines.

46JetGrade70 = typical for light jets

A fast, high-flying piece of aviation history that most buyers should not own. It cannot fly to or from airports in the lower 48 states without special FAA permits, range is short, and the unique wing has no spare-parts pool.

Buy it if

You are a museum, collector or experienced Learjet operator based outside the lower 48 states, and you value its history and 51,000 ft performance more than range, cost or resale.

Skip it if

You need a jet you can fly from US airports, carry four people more than about 800 nm, or sell later. A hushkitted Learjet 25D or a Learjet 35A does the job legally.

Biggest compromise

The US noise rule. Since January 1, 2016, jets of this size that miss Stage 3 noise limits may not fly to or from airports in the lower 48 states except under special FAA permits.

The numbers that matter

What it costs per year

$1.21M

at 300 hrs · two professional pilots

How far it flies

800 nm

About 800 nm with 4 passengers

How fast

458 kt

high-speed cruise

Seats

6

6 typical, 8 maximum; Model 29 fewer

Pilots needed

2

Two pilots required; the captain needs a Learjet (LR-JET) type rating.

Price

What one costs to buy

Typical asking price

$0

Other sites

0 observed on other sites

Priced vs call

0 / 0

with a price / call for price

None are listed for sale and no published value guide covers the model. With nine built and US flying restricted, any price would be negotiated privately.

Price vs its family and alternatives

Scroll to explore · select a jet for details

Learjet 23Learjet 24 (24, 24A–24F)Learjet 25 / 25B / 25C / 25DLearjet 55Learjet 35 / 35ACitation II (550)$0$250K$500K$920K

Learjet 23

$80K–$301K guide

Guide value, not a listed asking price.

See the Learjet 23

For sale now

None listed right now

Cost to own

What it costs per year to run

300hours / year

Per year

$1,206,247

Per flight hour

$4,021

Estimate — your operator will quote actual numbers.

Fuel, airframe maintenance, engine overhaul reserve and other operating costs rise as you fly more. Two professional pilots, recurrent training, two pilots, hangar and insurance stay the same however much you fly.

Where the money goes

$1.21Mper year$4,021/hr
  • Two professional pilots$216,59218%
  • Recurrent training, two pilots$33,0523%
  • Hangar$35,4193%
  • Insurance$25,7392%
  • Fuel$597,84050%
  • Airframe maintenance$132,00011%
  • Engine overhaul reserve$136,80011%
  • Other operating costs$28,8052%

Fuel is the biggest single cost at 50% of the total.

The JetGrade

46 out of 100 — Well below its class

Peer group: Learjet 24, Learjet 25 / 25D, Cessna Citation I, Cessna Citation II, Mitsubishi Diamond I

Seven categories at a glance

- - - 70 = typical— This aircraft

Strongest on speed & trip time, weakest on airport access.

Grades are editorial opinions about the model, not any specific aircraft. Sponsors and affiliates have no input. Reviewed 2026-09-29.

Where it flies

Sample trips and reach

Typical trips on a map

Out of reach

0 of 6 sample trips are comfortable nonstops.

Sample flight times

  • Carlsbad → Las Vegas

    205 nm · Barred by US noise rule; special permits only

  • Carlsbad → Aspen

    625 nm · Barred by US noise rule; special permits only

  • Santa Ana → San José del Cabo

    765 nm · Barred by US noise rule; special permits only

  • Teterboro → West Palm Beach

    900 nm · Barred by US noise rule; special permits only

  • Dallas → Teterboro

    1,190 nm · Barred by US noise rule; special permits only

  • Carlsbad → Teterboro

    2,100 nm · Barred by US noise rule; special permits only

Lineage

What came before and after

What changed from the Learjet 25

  • New wing with winglets, the first on any production jet.
  • Wingtip fuel tanks removed; fuel moved to a larger tank in the fuselage.
  • Model 28 seats up to eight; Model 29 trades two seats for extra fuel.
  • Same GE CJ610-8A turbojets as the Learjet 25D, 2,950 lb of thrust each.

Size and cabin

How big it is, inside and out

Outside

Silhouette · scaled to length

5′ 11″Car 14′ 9″Length 47′ 7″Wingspan 43′ 10″Height 12′ 3″

Length

47′ 7″

Wingspan

43′ 10″

Height

12′ 3″
3.0×the length of a midsize car
1.2×the width of a tennis court, wingtip to wingtip
1.2×a one-story ceiling, ground to tail tip

Inside the cabin

6 seatsPlan · schematic
◀ FRONTLength 12′ 1″4′ 10″12′ 1″ long · 4′ 10″ wide · 4′ 3″ tall

Cabin length

12′ 1″

Width

4′ 10″

Height

4′ 3″
Stoopa 6 ft adult ducks about 1′ 9″
4′ 0″of cabin per seat row
LayoutSingle passenger seats either side of a narrow aisle, up to eight in the Model 28.
6 seats typicalBaggage 40 cu ftUnknownCabin altitude ~7,100 ft

Compare

How it stacks up

This aircraft

Learjet 28 / 29 Longhorn

JetGrade
46
Cost per year
$1.21M
Range
1,300 nm
Speed
458 kt
Seats
6
Cabin length
12′ 1″
Pilots
2
Years built
1979–1982

← Before

Learjet 25 / 25B / 25C / 25D

JetGrade
54
Price
$150K–$400K guide
Cost per year
$1.24M
Range
1,535 nm
Speed
464 kt
Seats
7
Cabin length
12′ 0″
Pilots
2
Years built
1967–1982

After →

Learjet 55

JetGrade
65
Price
$649K
Cost per year
$1.93M
Range
2,244 nm
Speed
458 kt
Seats
7
Cabin length
13′ 7″
Pilots
2
Years built
1981–1986

Alternative

Learjet 35 / 35A

JetGrade
67
Price
$581K–$920K guide
Cost per year
$1.31M
Range
2,196 nm
Speed
451 kt
Seats
6
Cabin length
12′ 11″
Pilots
2
Years built
1974–1993

Alternative

Cessna Citation II (550)

JetGrade
67
Price
$895K
Cost per year
$919K
Range
1,159 nm
Speed
355 kt
Seats
6
Cabin length
15′ 9″
Pilots
2
Years built
1978–1994
  • Learjet 25D instead: Same fuselage, engines and speed, with an approved hushkit that makes it legal in the lower 48 and about 1,000 nm of range.
  • Learjet 35A instead: Quieter, more efficient turbofan Lear with far more range and a large support network, often at a similar price.
  • Cessna Citation II instead: Slower, but a roomier cabin, lower fuel burn and a deep parts and resale market.

Gold marks the best figure in each row.

Owning one

What to know before you buy

Engines & inspections

2 × GE CJ610-8A · 2,950 lbf each

No APU

Engine hours until overhaul

0 hr5,000 hr overhaul
  • 300-hour A inspection · 300 hr
  • 600-hour B inspection · 600 hr
  • 1,200-hour C inspection · 1,200 hr
  • 2,400-hour D inspection · 2,400 hr
  • Engine overhaul · 5,000 hr
  • 12,000-hour inspection · 12,000 hr
  • 12-year structural inspection every 144 months

Owners pay for overhauls as they come due; U.S. Turbine & Accessory and a few other shops still overhaul and lease these engines.

Known issues

  • Barred from lower-48 airports

    It misses Stage 3 noise limits and no approved hushkit covers it, so US flights need special FAA permits.

  • One-of-nine wing

    The winglet wing exists on only nine airframes, so major structural repairs have no donor parts.

  • Costly 12-year inspection

    About $90,000 in labor alone at one specialist, plus parts and five to six weeks of downtime.

Pre-buy checklist

0 of 8 checked

A few US Learjet specialists still price 20-series inspections, and several shops overhaul and lease CJ610 engines. Parts are shared with the Learjet 25 except the unique wing and winglets.

Review

The full review

Strengths

  • High-speed cruise of about 450–465 knots, faster than most light jets built today.
  • Certified to 51,000 ft with a published climb rate of about 6,350 feet per minute.
  • Takeoff distance of about 3,040 ft at 15,000 lb maximum weight.

Limitations

  • Barred from normal flights to or from airports in the lower 48 states since 2016 because it misses Stage 3 noise limits.
  • Twin turbojets burn roughly 245–285 gallons an hour, about double a modern light jet.
  • Cabin is 4 ft 3 in tall and 4 ft 10 in wide, with about 800 nm of practical range.

The Learjet 28 and its long-range sister, the Learjet 29, are the rarest Learjets ever sold. Gates Learjet built just five 28s and four 29s between 1979 and 1982. Both used the fuselage and General Electric CJ610 turbojet engines of the Learjet 25 and added a new wing with winglets, making them the first production jets to fly with them. The design was nicknamed the Longhorn, and the same wing idea carried on into the larger Learjet 55.

Pilot's take

The 28 flies like the 20-series Learjet it is. Two yaw dampers are required for flight, a stick pusher guards the stall, and the airplane rewards precise speed control near its 0.82 Mach limit. The winglet wing was designed to improve climb and high-altitude efficiency, and the published 51,000 ft ceiling and brisk climb reflect that. The trade is fuel: a pair of turbojets that are happiest very high, and a range that makes every leg a reserves calculation. Anyone considering one should start with the noise rule, not the logbook.

— TheJetGrade editorial

Who this is for

Aviation museums, collectors and Learjet specialists outside the United States who want the first production jet with winglets and have the crews and shops to keep a 1979 turbojet flying.

Ask about this aircraft

Answers come only from our research file on the Learjet Learjet 28 / 29 Longhorn.

Your earlier questions

Owners

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