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KAI KT-1 Woong-bi

Basic Trainer / Light Attack Aircraft

South Korea | 2000

"The versatile KAI KT-1 Woongbi of South Korean origin can handle basic training and light attack duties."

Authored By: Staff Writer | Last Edited: 06/03/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
Modern military air services rely on many training platforms when graduating airmen from the classroom to the cockpit. From general instruction comes basic flight training and this phase is typically accomplished through the tried-and-true, prop-driven aircraft seating two (instructor and student). The KAI KT-1 "Wong-bi" is such an aircraft and is a product of local South Korean industry. A first-flight was recorded in November of 1991 and production (ongoing since 1999) has yielded over 175 examples to date (2017). Once adopted, the KT-1 became the first, wholly-designed and developed indigenous South Korean aircraft and has since been committed to by the nations of Indonesia, Peru, Senegal and Turkey in various numbers.

The KT-1 was born under the local "KTX" program of the late-1980s and the development contract was given to Korea Aerospace Industries (KAI). Computer-aided design was used in bringing the KTX to life and the result was a highly-conventional, all-modern basic trainer in the KT-1. The program encompassed nine total prototypes and deliveries to the South Korean Air Force followed in 2000. The service received 85 total KT-1 models and 20 KA-1 models (detailed below).

The KT-1 showcases a length of 33.7 feet with a wingspan of 34.8 feet and height of 12 feet. Its empty weight is 4,200lb against a Maximum Take-Off Weight (MTOW) of 7,300lb. Power is from a Pratt & Whitney Canada PT6A-62 turboprop engine of 950 horsepower output driving a four-bladed propeller unit at the nose. Performance specifications include a maximum speed of 360 miles per hour, a range out to 830 miles and a service ceiling of 38,000 feet. Rate-of-climb is 3,180 feet per minute.

As designed, the KT-1 features its crew of two seated in tandem (the instructor to the rear) under a lightly-framed single-piece cockpit canopy. The cockpit is set aft of the nose assembly housing the engine. The wing mainplanes are straight appendages with clipped tips and mounted under the cockpit. Each mainplane exhibits noticeable dihedral (upward angle). The empennage is traditional, sporting a single rudder with low-set horizontal planes. The tricycle undercarriage is wholly retractable, each leg being single-wheeled.

The production run of the Woong-bi has expanded to include several notable variants: KTX-1 "Yeo-myung" was used to designate prototypes and these were powered by PWC PT6A-25A series turboprops of 550 horsepower. Then followed the production-minded KT-1 with PWC PT6A-62 engines of 960 horsepower with slightly revised tail unit. The KA-1 was developed as an advanced trainer with attack capabilities built-in and the cockpit was given Head-Up Display (HUD) as well as Multi-Function Displays (MFDs). In addition to this, five hardpoints were added for ordnance-carrying that support weaponry up to air-launched missiles.

Export models became the KT-1B, KT-1T and KT-1P meant for Indonesia, Turkey and Peru, respectively. The KA-1P is the armed export model of the Peruvian KT-1P trainer. The KT-1C is an improved, export-minded attacker with FLIR, a complete defense suite (chaff/flare dispenser) and support for gunpods, drop bombs, rockets and missiles.

In today's changing battlefield landscape, dual-role aircraft like the KT-1 have grown in value, particularly with the rise in insurgencies across the globe. They represent a budget-conscious alternative to more expensive, technology-laden platforms and the market for basic trainers is becoming saturated with similar lightweight designs emerging from the United States, Europe and elsewhere. As such, the global foothold of the Korean-made KT-1 is of note.

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May 2020 - Senegal has taken delivery of two out of four ordered KT-1 trainer aircraft. The remaining two examples are scheduled to be delivered before the end of 2020.

Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the KAI KT-1 Basic Trainer / Light Attack Aircraft.
1 x Pratt & Whitney Canada PT6A-62 turboprop engine developing 950 horsepower driving a four-bladed propeller unit at the nose.
357 mph
575 kph | 310 kts
Max Speed
37,992 ft
11,580 m | 7 miles
Service Ceiling
830 miles
1,335 km | 721 nm
Operational Range
3,180 ft/min
969 m/min
City-to-City Ranges
Operational range when compared to distances between major cities (in KM).
The nose-to-tail, wingtip-to-wingtip physical qualities of the KAI KT-1 Basic Trainer / Light Attack Aircraft.
33.6 ft
10.25 m
O/A Length
34.8 ft
(10.60 m)
O/A Width
12.1 ft
(3.68 m)
O/A Height
4,211 lb
(1,910 kg)
Empty Weight
7,308 lb
(3,315 kg)
Design Balance
The three qualities reflected below are altitude, speed, and range. The more full the box, the more balanced the design.
Available supported armament and special-mission equipment featured in the design of the KAI KT-1 Woong-bi Basic Trainer / Light Attack Aircraft .
Conventional drop bombs, rocket pods, and gun pods if armed for light strike or training duties.
Notable series variants as part of the KAI KT-1 Woong-bi family line.
KTX-1 "Yeo-myung" - prototype model; Pratt & Whitney Canada PT6A-25A turboprop engine of 550 horsepower; six examples.
KT-1 - Basic trainer model for South Korean Air Force; PWC PT6A-62 engine of 950 horsepower; dimensionally larger than prototypes.
KA-1 - Advanced trainer with light-attack capability; Head-Up Display (HUD); MFD cockpit panels; five armament hardpoints.
KT-1B - Export model for Indonesian service
KT-1C - Improved attack export model; FLIR equipped; broadened armament support.
KT-1T - Turkish Air Force variant
KT-1P "Torito" - Peruvian Air Force trainer variant
KA-1P - Peruvian Air Force attack model
Global customers who have evaluated and/or operated the KAI KT-1 Woong-bi. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 180 Units

Contractor(s): Korea Aerospace Industries (KAI) - South Korea
National flag of Indonesia National flag of Peru National flag of Senegal National flag of South Korea National flag of Turkey

[ Indonesia; Peru; Senegal; South Korea; Turkey ]
Relative Max Speed
Hi: 400mph
Lo: 200mph
Aircraft Max Listed Speed (357mph).

Graph Average of 300 MPH.
Era Crossover
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Max Alt Visualization
Small airplane graphic
Production Comparison
Entry compared against Ilyushin IL-2 (military) and Cessna 172 (civilian) total production.
MACH Regime (Sonic)
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030
Aviation Timeline
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Image of the KAI KT-1 Woong-bi
Image from the United States Department of Defense DVIDS imagery database.
2 / 3
Image of the KAI KT-1 Woong-bi
Image from the United States Department of Defense DVIDS imagery database.
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Image of the KAI KT-1 Woong-bi
Image copyright www.MilitaryFactory.com; No Reproduction Permitted.

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
The KAI KT-1 Woong-bi Basic Trainer / Light Attack Aircraft appears in the following collections:
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