Introduction

The MFI-17 Mushshak (The Proficient) is a light-weight, robust, two/three seats, single engine, predominantly all metal aircraft with tricycle fixed landing gear. It has been developed to meet US FAR 23 certification in categories normal, utility and aerobatics. It can operate from any short un-prepared strip and is completely independent of any kind of ground equipment.

Super Mushshak (The Agile) - advanced avionics is an upgraded version of Mushshak fitted with a more powerful engine, cockpit air-conditioning, electrical instruments, and electric cum manual elevator and rudder trim.

Training Role

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 deliberate spins
• Night flying
• Navigation flying
• Formation flying

Army Co-operation Missions

Besides primary flying training, Mushshak is also suited for a wide range of army co-operation missions including:

• Forward air control
• Forward area support with droppable supply containers
• Reconnaissance
• Artillery fire observation
• Camouflage inspection
• Border patrol
• Liaison
• Target flying and target towing for training of ground units

Technical Data

Engine (Mushshak)

• Type: Textron Lycoming IO-360 A1B6
• Power: 200 HP (at 2700 RPM at standard sea level conditions)
• Cylinder: 04
• Propeller: Two blade constant speed variable pitch from M/s Hartzell, USA

Engine (Super Mushshak)

• Type: Textron Lycoming IO-540 V4A5
• Power: 260 HP (at 2700 RPM at ISA conditions)
• Cylinder: 06

Propeller (Mushshak)

A Hartzell, USA two-blade constant speed metal propeller is installed on the engine

Propeller (Super Mushshak)

Super Mushshak has been qualified with both three and two blade propellers from McCauley and Hartzell of USA respectively.

TBO

Time between overhaul (TBO) for engine and propeller is 2000 hours.

Cockpit

• Spacious side by side cockpit giving 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 auto lock inertia reels
• Typical avionic equipment configuration includes UHF/VHF radio, GPS, VOR, Transponder, ADF etc
• Third crew member can be accommodated in the rear cabin

Fuel System

• Based on two integral fuel tanks holding a total of 47 US gallons
• Bendix RSA type fuel injection system
• Houses engine driven fuel pump for normal operation
• Electric fuel pump for emergency conditions

Flight Control System

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

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
• Up to 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 field
• Structure life of 8300 hrs
• Low radar signature

Optional Equipment

The following 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.
• Electric Trim: Reliable and effective elevator and rudder electrical cum manual trim can be installed easily.
• Air Conditioner: One of the most effective and reliable Enviro R-134 environmental friendly air conditioning system can be installed.
• Avionics suit: Customized avionics suit or _____ cock pit can be added as per customers request.

Main Data

• Length: 7 m/23 ft (Mushahak)    7.15 m/23.5 ft (Super Mushshak)
• Height: 2.60 m/8 ft 6 ½ in
• Span: 8.85 m/29 ft
• Wheel Track: 2.2 m/7 ft 2 ½ in
• Wheel base : 1.58 m/5 ft 3 in

Wing

• Wing Area: 11.9 m²/128 sq ft
• Sweep Forward: 5°
• Airfoil Thickness: 10%
• Dihedral: 1.5°
• Mounting angle of incidence: +2.8° nose up Wing chord to fuselage datum

Horizontal Tail

• Span: 2.80 m/9 ft 2 in
• Area: 2.10 m²/22.6 sq ft
• Sweep: 0°
• Airfoil Thickness: 12%
• Dihedral: 0°

Vertical Tail

• Height: 1.32 m/4 ft 4 in
• Area: 1.52 m²/16.3 sq ft
• Airfoil Thickness: 12%
• Sweep, Leading Edge: 36°
• Sweep, Trailing Edge: 8°

Users

The users of Mushshak and Super Mushshak are:

• Pak Army
• Pakistan Air Force
• Iran
• RSAF
• Oman
• Syria
• Norway
• Sweden
• Denmark