Korean Air KF-5F (Jegong-Ho)

Twin-Seat Advanced Jet Trainer (AJT) [ 1982 ]

The Korean Air KF-5F Jegong-Ho is a locally-produced South Korean training-centric variant of the American Northrop F-5 Tiger II.

Authored By: Staff Writer | Last Edited: 09/09/2022 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

Image from the Republic of Korea Ministry of Defense; Public Release.

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The Korean Air KF-5F "Jegong-Ho" lightweight Advanced Jet Trainer (AJT) is nothing more than the American Cold War-era Northrop F-5F "Tiger II" fighter / supersonic trainer aircraft. The designation signifies a locally-produced F-5F for the Republic of Korea Air Force (RoKAF) and the type was first introduced during September of 1982. Twenty airframes were acquired in this fashion. Similarly, the KF-5E are F-5E models also built in South Korea for its air service. Introduction was also had in September of 1982 and 48 airframes were procured by the branch.

The KF-5F and KF-5E models joined F-5A/B variants purchased in 1965 by the RoKAF. F-5E models then followed in August of 1974. This experience led to local production of the type from 1982 to 1986.

For intents and purposes, the South Korean fighters are faithful to the original American design. They seat two in tandem under independent canopies and each position has ejection seats. The cockpits are set aft of a radar-housing nose assembly. The monoplane wings are held low against the sides of the fuselage and each wingtip is usually reserved for short-ranged air-to-air missiles (if armed). The tail unit comprises a single vertical fin with low-set, all-moving horizontal planes to round out the control scheme. Side fuselage intakes aspirate the turbojet engine pairing within. A retractable tricycle style undercarriage allows for the needed ground-running.

As fighters "first", Tiger IIs have a limited ground attack capability. A jettisonable fuel tank is typically fitted at centerline. As Advanced Jet Trainer platforms, they excel in providing pilots their first taste of supersonic flight.

The KF-5 has been succeeded, on paper, by the locally-designed, developed, and produced FA-50 light strike platform from 2001 onward. Today (2022), some 156 F-5E Tiger II fighters are in active inventory while 29 F-5F models are used as Advanced Jet Trainers (AJTs).©MilitaryFactory.com

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Specifications

Korean Air - South Korea
Manufacturer(s)

South Korea
Operators

1982
Service Year

South Korea
National Origin

Active
Project Status

2
Crew

20
Units

TRAINING
Developed ability to be used as a dedicated trainer for student pilots (typically under the supervision of an instructor).

TRAINING, ADVANCED
Dedicated advanced training platform for student pilots having graduated from basic flight training.

48.2 ft
(14.69 meters)
Length

26.7 ft
(8.15 meters)
Width/Span

13.5 ft
(4.10 meters)
Height

9,590 lb
(4,350 kilograms)
Empty Weight

24,692 lb
(11,200 kilograms)
Maximum Take-Off Weight

+15,102 lb
(+6,850 kg)
Weight Difference

monoplane / low-mounted / swept-back
Mainplane Arrangement

Monoplane
Design utilizes a single primary wing mainplane; this represents the most popular modern mainplane arrangement.

Low-Mounted
Mainplanes are low-mounted along the sides of the fuselage.

Swept-Back
The planform features wing sweep back along the leading edges of the mainplane, promoting higher operating speeds.

2 x General Electric J85-GE-21 afterburning turbojet engines developing 3,500lb of thrust each.
Propulsion

1,084 mph
(1,745 kph | 942 knots)
Max Speed

652 mph
(1,050 kph | 567 knots)
Cruise Speed

+432 mph
(+695 kph | 375 knots)
Speed Difference

51,837 ft
(15,800 m | 10 miles)
Ceiling

2,312 miles
(3,720 km | 2,009 nm)
Range

34,500 ft/min
(10,516 m/min)
Rate-of-Climb

MACH Regime (Sonic)

Sub

Trans

Super

Hyper

HiHyper

ReEntry

♦

Typically none unless in armaments training.

5
Hardpoints

X

Hardpoints Key:

Centerline

Wingroot(L)

Wingroot(R)

Wing

Wingtip

Internal

Not Used

KF-5F ("Jegong-Ho") - Base Series Designation; 20 airframes completed.

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Images

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Image of the Korean Air KF-5F (Jegong-Ho)

Image from the Republic of Korea Ministry of Defense; Public Release.

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