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Stark    Akcent II            
Stark

Aerodynamics

Stark has been created as model of a professional sports level. The model has the reduced wing area covered also rather thick profile. It allows to combine such qualities as good wind penetrating and high launch with better stability of flight. Thicker profiles of a wing allow to feel the slightest indignations of air and to use the weakest thermals.

The wing airfoils were designed according to local Reynolds numbers and geometry of the wing to provide best flight characteristics. Another reason that the thicker airfoils of a wing have been chosen is to avoid aileron flutter. The wing airfoil varies on a thickness from 7.2 % in a root of a wing to 6.2 % on the wing tip.

The model fuselage has minimum necessary dimensions and has the form that provides the minimum resistance.

For stabilizer and fin were taken slightly asymmetrical airfoils. Airfoil thickness on fin was a little bit increased to provide better controllability. With an asymmetric airfoil it is not required to change cardinally flight presets when weather changes. It makes model more universal in relation to weather conditions and facilitates piloting.

Construction

The model was designed and developed with using of CAD/CAM technologies. It helps us to receive a split-hair accuracy and repeatability of details. The model was designed to have better rigidity and smaller weight.



Wing


The wing of the model has a usual construction. The wing is made with Rohacell use that considerably facilitates a construction, without reducing durability.. The constructional versions are: disser, D-box, D-box+disser, full carbon.

Disser version The wing of this version has a carbon roving lattice inside. It gives to a wing high torsion and bend strength and makes it strong enough for high throws. Ailerons are reinforced with carbon braid.

D-box version The wing is reinforced with carbon fabric D-box. Ailerons are reinforced with carbon braid and carbon fabric.

D-box + disser version. The wing is made up with D-box and disser.

Full carbon version. The full carbon version is made specially for very strong throws and high winds.

All versions can be made with preinstalled RDS with Atlas Hyperion DS 09 or Dymond D 60 servos.

Fuselage


The model fuselage has is minimum necessary dimensions, simultaneously providing easy access to all components of radio equipment. The fuselage is made as one piece , that is a nose cone and a tail boom have no joint and are formed as a one part. Fuselage is maid of high-modulus carbon fabric at a high pressure. The tail boom is a little increased in diameter and in a root has elliptic section that gives it special rigidity.
The stabilizer pylon is allows to improve aerodynamics and to reduce resistance of the stabilizer and elevator horn to a minimum.
Another advantage of a fuselage its weight. The fuselage weight is only 38 g.





Tail surfaces

Tail surfaces are made with negative moulds as all parts of the glider. The cores are CNC milled. That allows making tail surfaces lighter, stronger and as much as possible precisely to keep an airfoils.



Complete set:

  1. Wing
  2. Fuselage
  3. Fin
  4. Stabilizer
  5. Wing screws
  6. Horns
  7. Throw peg
  8. Ballast tube (only in versions D-box , Dbox+disser, full carbon)
  9. Covers


Available paint colors
BLUE GREEN WHITE BLACK
RED PINK ORANGE YELLOW

Paint schemes:


Accessories for the model (such as servos, accumulators, and other) you can find in the page Accessories