COMBAT TRAINER AIRCRAFT I-22 "IRYDA"
Model-93 PZL I-22 "Iryda"
The project was realized in cooperation with PZL Mielec.
"Iryda" - advanced trainer
The I-22 IRYDA combat trainer is designed for advanced and refresher training of military pilots, as well as for combat missions as a light tactical support and reconnaissance aircraft.
The aircraft was designed based on Poland's Ministry of Defence Tactical/Technical Procurement Specifications and British AP970 regulations. As regards flying and handling characteristics, the regulatory basis adopted was MIL-F-875 B/ASG Standard.
Technical description
The PZL I-22 Iryda is a two-seat twin-jet all-metal high-wing monoplane.
Wing
Tapered, with laminar airfoil section, aerodynamical and geometrical twist, negative dihedral -3o,sweepback 14.5. One piece all-metal two-spar semi-monocoque structure. Integral fuel tanks in wing torque box. Four underwing hardpoints. All-metal mass-balanced ailerons and fowler flaps and slots.
Fuselage
Fuselage with oval-shaped cross section and all-metal semi-monocoque structure. Nose gear space and avionics bays in forward fuselage part. Pressurized cabin fuselage part. Under cabin: avionics bays, gun armament, ammunition container. Fuel tanks and components of board systems in central fuselage part. Two engine air intakes with oval-shaped cross-section, on both sides of central fuselage part. Main landing gear bays and equipment spaces under internal air ducts. Two airbrakes on rear fuselage part. Brake parachute in rear fuselage cone.
Tail unit
Classic type, tapered, with sweepback. Variable incidence tailplane with negative dihedral -6o. Two-spar horizontal and vertical stabilizers structures.
Flying controls
Full dual controls, rigid type control systems with hydraulic boosters for ailerons. Hydraulically operated tailplane, flaps and airbrakes. Pneumatic flaps operation in emergency.
Landing gear
Hydraulically retractable into fuselage spaces. Telescope-type nose gear, nosewheel on fork-rocker. Rocker-type main landing gears. Hydraulic disc brakes. Oleo-pneumatic shock absorbers. Low-pressure tyres. All landing gear pneumatically extended in emergency. Nosewheel size 430 x 170, main wheels size 670 x 210.
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