Karakoram-8 (K-8), Basic Cum Advance Jet Trainer, is co-developed by Aircraft Manufacturing Factory (AMF), Pakistan Aeronautical Complex, Kamra, and China National Aero-Technology Import & Export Corporation (CATIC).
Power Plant
K-8 is fitted with Allied Signal GARRETT TFE 731-2A-2A modular turbofan engine with DEEC & hydro mechanical fuel control system.
Cockpit Layout
Cockpit is designed to meet the latest Military Specification of Aircrew Station Geometry and vision requirements. EFIS made by Collins is fitted in front and rear cockpits. UHF/VHF communication system, TACAN/RADIO COMPASS & ILS are available as per the customers requirement.
Egress System / Escape System
Highly reliable escape system incorporating two Martin Baker MK-10L fully automatic rocket assisted zero-zero ejection seats to ensure survival capability within the entire flight envelope.
Environmental Control System (ECS)
Incorporation of most effective Allied Signal ECS provides a roomy cockpit environment with airconditioning capability even on ground under an ambient temperature of -40 °C to +52 °C.
Fuel System
The aircraft fuel system consists of the fuel tanks and the fuel supply / transfer, vent/pressurisation, fuel quantity measuring / indicating, fuel refuelling and fuel drain subsystems. The total fuel contained in two fuselage bladder-type rubber tanks and a wing integral tank is 1720 lb. The capacity of each drop tank is 250 Ltr.
Flight Control System
The aircraft is equipped with conventional flight control surfaces controlled by a rigid push-rod transmission system and are electrically or hydraulically operated. The aileron control system, of irreversible servo-control type, is composed of a hydraulic booster, an artificial feel device, a feel trim actuator and a rigid push-rod transmission mechanism. The elevator and rudder control system is of reversible push-rod type.
Main Features
Wide speed range and high manoeuvrability
Satisfactory flying qualities in accordance with the requirements set forth in MIL-F-8785C IV for highly- manoeuvrable aircraft
Good field of view and cockpit arrangement very close to a combat aircraft
Advanced turbofan engine with low specific fuel consumption and minimum operation and maintenance cost
State of the art equipment (including instrumentation, communication, navigation, etc.) satisfying the requirements of training pilots for next millennium.
Highly reliable escape system
Advanced strap on environmental control system capable of providing cockpit air-  conditioning both on the ground and in the air
Hydraulically operated wheel braking and nose wheel steering
Multi role capability for training
8000 flight hours service life for airframe structure
Long endurance and high service ceiling adequate for a wide range of missions.
Low life cost
Short turn-around time and low maintenance work load
Main Data
Rated power Max static thrust at sea level 3600 lbs
SFC 0.502 lb/lb thrust hr (Max static thrust)
Air flow 115 lbs /sec (take-off and max continuous)
Engine net weight: 812 lb
Pressure ratio 13.9
Bypass ratio 2.67
An access through which the engine is installed/removed is provided on the belly of the fuselage. With this provision, replacement of the engine in the field takes £ 50 minutes.
Technical Data
Dimensions
Overall length 11.6 m
Overall height 4.21 m
Wing area 17.02 m2
Wing span 9.63 m
Wheel track 2.54 m
Wheel base 4.442 m
Weights
Normal take-off weight 3700 kg
Useful load 943 kg
Internal fuel capacity 780 kg
Weight empty 2757 kg
Max take-off weight 4332 kg

Flight Performance
Max level speed 800 km/hr
Rate of climb at sea level 30 m/s
Service ceiling 13600 m
Built-in Range 1560 km
Ferry range (with drop tanks) 2140 km
Endurance 3.2 hrs
Max endurance (with drop tanks) 4.2 hrs
Unstick speed 185 km/hr
Touchdown speed 160 km/hr
Take-off ground run 440 m
Landing ground run 530 m
Limit load factor +7.33 g
-3.0 g
Customers
The customers of K-8 are PLAAF (China), Pakistan Air Force, Myanmar Zambia Air Force and Namibia Air Force.