The JK-05 JUNIOR is a strut high wing aircraft.
All major airframe assemblies have a shell structure made of composites
based on glass or carbon fibre. The fuselage in the form of a self-supporting shell
stiffened locally with 3D material, houses a double cockpit in the front part
with places next to each other.
Cockpi width 1.2 m.
The shell is technologically divided into two symmetrical halves with stiffeners,
and an integrated floor - trunk plate, glued in when connecting
Seats with a shell structure made of composites.
Cockpit cover - a wind-up glass made of ultraviolet-resistant acrylic glass
(PMMA polymethyl methacrylate), on a composite frame, divided in the plane of
symmetry, hung on a central pillar - opened upwards, inwards.
The unit connecting the wings is a flat steel tubular truss.
Vertical stabilizer integral with the fuselage.
Tricycle landing gear with a front wheel. The main undercarriage legs self-supporting,
composite. Main wheels braked together, front wheel steered, coupled to
the rudder. Optionally, the wheels are covered with laminated fairings.
Rectangular wings with a characteristic narrowing at the fuselage to
improve visibility. The NN-1817 profile was used for its resistance to
contamination of the leading edge, with very favorable aerodynamic
characteristics - tested on the PW - 5 "SMYK"glider. The wing structure
is shell, sandwich, with a load-bearing girder supported by a strut.
Over the entire span, a slotted flaperon of a shell structure, hung
to the wing on five booms, driven at the fuselage. The flaperon is made
of carbon laminate due to the necessary high torsional stiffness, with
the lowest possible weight (anti-flater requirements). There are no
complicated installations or control systems inside the wing.
Classic horizontal tail with a rectangular contour, shell structure made of
composites. Shell rudder. Pusher control systems.
Elevator trimmer - spring-loaded, electrically adjustable. In the basic version,
one joystick in the center of the cockpit.
ROTAX 912 UL engine with 80 HP.
70 liter fuel tanks behind the crew cockpit.