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Hongdu JL-8 / K-8 Karakorum


Light Attack / Advanced Jet Trainer Aircraft (1994)


Aviation / Aerospace

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Left side profile illustration view of the Hongdu JL-8 advanced trainer in Pakistani aerial demonstration colors
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Image from the Chinese Ministry of Defense.

Jump-to: Specifications

The Hongdu JL-8 has been in operation service since 1994 and can be used as both an advanced jet trainer and light strike platform.



Authored By: Staff Writer | Last Edited: 04/27/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.
The Hongdu JL-8 / K-8 is a series of indigenous Chinese lightweight jet-powered aircraft. The JL-8 is a dual-role platform that allows for advanced pilot jet training while also retaining inherent combat capabilities for the light strike role. While the JL-8 is produced by Hongdu Aviation Industry Corporation, its origins lay in a design from the well-established Nanchang firm. The Pakistani government, which currently enjoys a close working relationship with China, is involved in the production of a similar variant known as the K-8 "Karakorum" - these being manufactured under the Pakistan Aeronautical Complex label. Operators of the JL-8 / K-8 also include Bolivia, Ghana, Myanmar, Namibia, Sri Lanka, Sudan, Tanzania, Venezuela, Zambia and Zimbabwe. To date, at least 500 examples of this aircraft have been delivered to various budget-conscious customers around the globe, either those looking to upgrade to a more modern jet trainer or those looking for a relatively inexpensive combat platform.

The initial JL-8 prototype was made public in 1989 with first flight being recorded on November 21st, 1990 and operational service being attained on September 21st, 1994. The original internal systems of the JL-8 series were intended to sport American-based technology but the deteriorating political ties between the United States and China following Tiananmen Square (1989) formally disallowed such use. As a result, the aircraft was redrawn to include available non-American parts. Some, therefore, question the inherent reliability of the JL-8 family as several notable - and fatal - crashed have since occurred. Regardless, the aircraft has maintained a growing foothold on the world market, particularly for national air forces needing a modern jet trainer for the instruction of a new generation of airmen with the combat capabilities inherent in the JL-8 family essentially coming as a "bonus" to these customers. As of this writing, China maintains the largest fleet of JL-8s with some 400 aircraft on the books. Egypt has also received (and produced) at least 118 aircraft of which at least forty of these were constructed in local facilities, the rest being manufactured from Chinese supplied "kits".

"JL-8" is used to signify the Chinese Air Force versions that fit a Ukrainian Ivchenko AI-25 TLK turbofan engine. The avionics package is, however, decidedly Chinese in origin. The "L-11" is based on the JL-8 but instead fitted with a Chinese locally-produced version of the Ivchenko AI-25 TLK known as the "WS-11". The "JL-8W" (also known as the "K-8W") is also based on the JL-8 but features an upgraded cockpit and meant for export to the Bolivian Air Force. Another Bolivian-destined product is the similar "JL-8VB" (also known as the "K-8VB"). All of the export models are delivered with the Honeywell TFE731-2A turbofan engine as opposed to the more powerful Chinese WS-11 series turbofan.

The basic "K-8 Karakorum" designation is used to mark initial export production models, these fitting a lesser Garrett/Honeywell TFE731-2A geared turbofan engine of 3,600lbs thrust. The Garrett TFE731 series is a product of Honeywell Aerospace and Garrett AiResearch first fielded in 1970. These engines have proven successful in the corporate jet arena to which some 11,000 powerplants of the type have since been produced, collectively logging millions of flight hours since their inception. The powerplant supplies the K-8 with a top speed of just under 500 miles per hour (approximately Mach 0.75) and an operational range of about 1,400 miles. Her service ceiling is listed at over 42,500 feet. As such, the JL-8 is categorized as subsonic aircraft, meaning she cannot travel at over the speed of sound (Mach 1), a typical design limitation of jet-powered trainer mounts.
The "K-8E" is an Egyptian export model with a revised avionics suite to suite Egyptian Air Force requirements. The "K-8P" is a Pakistani Air Force model also with a revised avionics suite and a modern all-glass cockpit arrangement. The "K-8V" has been consistently used as a developmental airframe for the testing of various system arrangements for future production consideration.

Outwardly, the JL-8 and its series variants maintain a very conventional design appearance yet bears an uncanny resemblance to the BAe Hawk, also utilized by the United States military as the McDonnell Douglas / Boeing T-45 Goshawk. The two-seat cockpit is situated at the front of the short, slim fuselage with the two crewmembers seated in tandem under a long-running, single-piece glass canopy hinged to the right hand side. In the trainer role, the student takes the forward cockpit while the instructor is seated in the rear. In the combat role, the two operators share the workload to decrease flight stresses for each pilot. A dual-control configuration means that the instructor can take control of the aircraft when need be. Martin-Baker ejection seats are allotted for each cockpit position. The cockpit sits behind a short, pointed nose assembly lacking any known radar installations. The fuselage also houses applicable avionics, fuel and the engine (fuel is also housed in each wing). A fuselage spine restricts rearward visibility, particularly for the rear-seated crewmember. Wings are low-set monoplane installations and straight in their design with clipped tips. The empennage is short and sports a single vertical tail fin atop the engine exhaust duct and a pair of horizontal tail planes are situated at the extreme rear of the jet, just under and behind the base of the vertical tail fin. The engine is aspirated by a pair of smallish, oval-type intake vents to either side of the rear cockpit. The undercarriage is a conventional tricycle arrangement with a pair of single-wheeled main legs and a single-wheeled nose leg.

While primarily utilized as a trainer with its customers, modern advanced trainer aircraft such as the JL-8, largely for economical and marketing reasons, can be converted into bonafide warring platforms with some modifications to its base configuration. When in the armed role, the standard armament consists of a 23mm cannon fitted to an external gun pod along the fuselage centerline. This can be supplemented with external provisions (or replaced altogether) with installation of munitions across four additional underwing hardpoints. This allows the JL-8 to mount conventional drop bombs, laser-guided bombs, air-to-air missiles, air-to-surface missiles, unguided rocket pods and fuel drop tanks - the latter to help extend her operational ranges. These arrangements allow the JL-8 series to undertake Close-Air Support (CAS) roles in direct support of allied ground force actions. After combat, the same airframe can then be reverted back to its non-combat training role without loss.

In Pakistani service, the K-8 has been noted for its use in the "Sherdils" aerial acrobatics display team of the Pakistan Air Force. The aircraft has been in this role since the middle part of 2010.

Specifications



Service Year
1994

Origin
China national flag graphic
China

Status
ACTIVE
In Active Service.
Crew
2

Production
525
UNITS


Hongdu - China / Pakistan Aeronautical Complex - Pakistan
National flag of Bolivia National flag of China National flag of Egypt National flag of Myanmar National flag of Namibia National flag of Pakistan National flag of Sri Lanka National flag of Sudan National flag of Tanzania National flag of Venezuela National flag of Zambia National flag of Zimbabwe Bolivia; China; Egypt; Ghana; Myanmar; Namibia; Pakistan; Sri Lanka; Sudan; Tanzania; Venezuela; Zambia; Zimbabwe
(OPERATORS list includes past, present, and future operators when applicable)
Close-Air Support (CAS)
Developed to operate in close proximity to active ground elements by way of a broad array of air-to-ground ordnance and munitions options.
Training (General)
Developed ability to be used as a dedicated trainer for student pilots (typically under the supervision of an instructor).


Length
38.1 ft
(11.60 m)
Width/Span
31.6 ft
(9.63 m)
Height
13.8 ft
(4.21 m)
Empty Wgt
5,924 lb
(2,687 kg)
MTOW
9,546 lb
(4,330 kg)
Wgt Diff
+3,622 lb
(+1,643 kg)
(Showcased structural values pertain to the Hongdu K-8 (Karakorum) production variant)
Installed: 1 x Garrett TFE731-2A-2A non-afterburning turbofan engine delivering 3,600lb of thrust.
Max Speed
497 mph
(800 kph | 432 kts)
Ceiling
42,651 ft
(13,000 m | 8 mi)
Range
1,398 mi
(2,250 km | 4,167 nm)


♦ MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030


(Showcased performance specifications pertain to the Hongdu K-8 (Karakorum) production variant. Compare this aircraft entry against any other in our database. View aircraft by powerplant type)
OPTIONAL:
1 x 23mm cannon in external underfuselage gunpod.

Additionally, Light Strike variants can be outfitted with rocket pods, conventional drop bombs, laser-guided bombs, air-to-air/air-to-surface guided missiles and fuel drop tanks.


Supported Types


Graphical image of an aircraft automatic cannon
Graphical image of an aircraft machine gun pod
Graphical image of an air-to-air missile weapon
Graphical image of a short-range air-to-air missile
Graphical image of aircraft aerial rockets
Graphical image of an aircraft rocket pod
Graphical image of an aircraft conventional drop bomb munition
Graphical image of an aircraft guided bomb munition
Graphical image of an aircraft external fuel tank


(Not all ordnance types may be represented in the showcase above)
Hardpoint Mountings: 5


JL-8 - Chinese Variant; fitted with Ukrainian Ivchenko AI-25 TLK turbofan engine.
JL-8W (K-8W) - Revised cockpit
JL-8VB (K8VB) - Bolivian Export Variant; based on the JL-8W.
L-11 - Chinese Variant; fitted with Chinese WS-11 turbofan engine (license-production of Ivchencko AI-25 TLK turbofan engines).
K-8 "Karakorum" - Base Export Model; fitted with Garrett/Honeywell TFE731-2A turbofan engine.
K-8E - Egyptian Export Model; revised avionics systems.
K-8P - Pakistan Model; revised avionics
K-8V - Developmental Testbed Airframe


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