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Old 02-03-2010, 03:16 PM   #1 (permalink)
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Default PAF Trainer jets - Mushak, T-37, K-8, etc - Discussion

I noted we do not have a sticky thread for PAF trainer jets. Mods please make this a sticky thread.

Super Mushak
=========

Super Mushshak -- the Agile -- is a variant upgraded version of Mushshak fitted with a more powerful 260 hp engine, cockpit air-conditioning, electrical instruments, and electric cum manual elevator and rudder trim. The aircraft has been developed to meet FAR part 23 certification in categories normal, utility and aerobatics.

Engine
Type = Textron Lycoming IO-540 V4A5
Power = 260 HP (at 2700 RPM at ISA conditions)

Cockpit
  • Spacious side by side cockpit giving good contact between the pilot and the co-pilot / observer or between the student and the instructor for effective " watch me" instruction.
  • Adjustable seats fitted with straps incorporating lockable inertia reels
  • Typical avionic equipment configuration includes UHF/VHF radio, GPS, VOR, Transponder and ADF.
  • Third crew member can be accommodated in the rear cabin

Training Role
  • Super Mushshak meets the requirement of a modern primary training syllabus and is an ideal basic trainer. Aircraft is ideal for: -
  • Basic Flight Training
  • Instrument flying
  • Aerobatics, stalls and spins
  • Night flying
  • Navigation flying
  • Formation flying

Flight Control System
Efficient dual flight controls including conventional stick type control columns and adjustable rudder pedals. Primary control surfaces are operated through a direct mechanical linkage.

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Design Criteria
  • The basic design philosophy behind Mushshak offers an aircraft with: -
  • Flexibility, covering both Army Co-operation and primary flying training
  • Excellent forward and downward visibility supplemented by a good rearward visibility
  • Good ground clearance even with bulky under wing stores and high crosswind capability for operation from narrow strips and roads
  • Upto 300 Kg/660 lbs external load carrying capability (including pylons).
  • Heavy-duty landing gear
  • Large baggage compartment in the rear part of the cabin easily accessible through a door on the port side of the fuselage. This space can also accommodate a third crew member
  • Good handling characteristics
  • Good short/rough field performance
  • Fully aerobatic capability, maximum limit load factor +6/-3 in Aerobatics category
  • Ease of maintenance and repair even in combat conditions
  • 8300 hrs structure life
  • Low radar signature

Optional Equipment
  • The following alternate/optional equipment can also be made available on request: -
  • Blind flying screen. There is a provision for installation and removal of blind screen for instrument flying.
  • Sun Blinds. Canopy perspex as well as rear cabin perspex can be provided with adjustable sunblind.
  • Third Seat. Aircraft incorporate fitting for the installation of third seat in the rear portion of the cabin.
  • Advance Avionics. Includes ILS alongwith standard avionics package


Technical Data
Main Data
o Length7.15 m/23.5 ft
o Height2.60 m/8 ft 6 ½ in
o Span8.85 m/29 ft
o Wheel Track2.2 m/7 ft 2 ½ in
o Wheel base1.6 m/5 ft 3 in

Wing
o Wing Area, reference11.9 m²/128 sq ft
o Sweep Forward5°
o Airfoil Thickness10%
o Dihedral1.5°
o Mounting angle of incidence+2.8° nose up

Horizontal Tail
o Span2.80 m/9 ft 2 in
o Area2.10 m²/22.6 sq ft
o Sweep0°
o Airfoil Thickness12%
o Dihedral0°

Vertical Tail
o Height1.32 m/4 ft 4 in
o Area, reference1.52 m²/16.3 sq ft
o Airfoil Thickness12%
o Sweep, Leading Edge36°
o Sweep, Trailing Edge8°
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Old 02-03-2010, 03:24 PM   #2 (permalink)
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Default Re: PAF Trainer jets - Mushak, T-37, K-8, etc - Discussion

K-8 JET TRAINER
===============

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


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Old 02-03-2010, 06:36 PM   #3 (permalink)
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Default Re: PAF Trainer jets - Mushak, T-37, K-8, etc - Discussion



L-15 Buy Likely Would Phase Out 2 Other Trainers
By Usman Ansari
Published: 1 February 2010 Print | Email

ISLAMABAD - Pakistan may acquire the Chinese L-15 supersonic jet trainer aircraft to equip a unit to transition pilots to advanced fighters, eventually reducing the types of trainers in its fleet from four to two.

The need for the aircraft has arisen despite the operation of the Air Force's current basic/advanced jet trainer, the Sino-Pakistani K-8 Karakorum, which is a highly capable aircraft that has won numerous export orders. Experts dispute whether the L-15, manufactured by Hongdu, is a good fit for Pakistan's needs.

Kaiser Tufail, Pakistani defense analyst and former Air Force air commodore, said, "the L-15 makes sense only if K-8 is used solely for basic flying training and L-15 for fighter conversion. In such a case, the [older] T-37 [trainer] would be redundant.

"Considering the extensive [and expensive] structural life enhancement program that theT-37s have undergone, their useful life has been extended by at least 10 more years. The only solution to the dilemma would be to look for a buyer for the T-37s and recover some much-needed foreign exchange."

Tufail added, "Other than this training stream, the L-15 doesn't quite fit if the K-8 is to perform the role of fighter conversion."

However, defense analyst Usman Shabbir of the Pakistan Military Consortium believes the interest in the L-15 is understandable.

The K-8 had been examined by the Air Force as a possible replacement for the current FT-5, a Chinese-made twin-seat MiG-17 Fresco, in the fighter conversion role when it first entered service in the early 1990s, he said. Pakistan also uses a small number of FT-6 trainers, a Chinese-made two-seat Mig-19 Farmer.

However, the Air Force "most likely felt that a dedicated aircraft purpose-built would be a better option," he said. The 1990s were also a time of considerable financial hardship for Pakistan, so the FT-5 therefore continued in service.

Shabbir further stated, "Now that the availability of an affordable and dedicated aircraft from China is assured, it probably led to the decision to go for the type in preparation for the future high-tech jets such as FC-20 andF-16C/D training requirements."

No official word from the Air Force, or the China Aviation Technology Import-Export Corp., was forthcoming. Officials' refusal to confirm the deal may stem from the fact that negotiations have not reached the final stages.

However, the Air Force has conducted detailed examinations of the aircraft, which included a visit of a single L-15 to Pakistan in December as it transited on its way to the Dubai Airshow. Negotiations are now being undertaken on technical aspects and pricing. The time frame for the conclusion of a deal is unknown.

Limited Combat Role

Like the K-8, the L-15 is also useful in the counterinsurgency role as it can carry a light warload of rockets and bombs, plus air-to-air missiles. There is no indication the aircraft is expected to be tasked with this role, but the capability is a point of interest for Pakistan.

The L-15 competed for orders from the People's Liberation Army Air Force and Naval Air Force against the cheaper and less capable JL-9. The JL-9 is heavily based on the F-7 series of fighters and looks set to be the final evolutionary stage of the MiG-21 Fishbed design.

The F-7 also makes up the backbone of Pakistan's Air Force and therefore the JL-9 could bring cost savings due to commonality, but that advantage appears to have been discounted.

This selling point for the JL-9 may have counted against it in the minds of the service's planners, Shabbir said. The L-15 was probably chosen "precisely because it is the more advanced design," and the "JL-9 most likely is not considered a good enough platform due to its F-7 lineage and airframe design, with its associated future growth limitations."

With the Pakistani F-7 variants expected to be retired this decade, the added cost savings associated with selecting the JL-9 would be unlikely to materialize. Also, the L-15 would allow Pakistan to reap economies of scale because of China's extensive modernization program.

Pakistan's interest in the L-15 may therefore have wider implications. Officially, at least, the L-15 has not fully entered service with the Chinese Air Force, but Pakistan's interest may indicate the Chinese are looking at the L-15 in a more favorable light.
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Old 02-03-2010, 06:36 PM   #4 (permalink)
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Default Re: PAF Trainer jets - Mushak, T-37, K-8, etc - Discussion

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Old 03-21-2010, 09:27 AM   #5 (permalink)
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Default Re: PAF Trainer jets - Mushak, T-37, K-8, etc - Discussion

What about paf ft-5
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