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FW5 Rookie
SAL DLG
F3K Contest starter model

     

 
Model:
Rookie
Wingspan [mm]:
1 500
Weight [g]:
ca. 270
Airfoil:
Zone 52-21

With Rookie we want to help all pilots being interested in F3K-competitions to get started. Rookie is a reasonable F3K competition model that is built out of the same molds as our top-Competition-DLG FW5 Flow.

By using favourable materials and an easy production method we managed to lower the price to a level affordable for all DLG newcomers.

Characteristics in brief:

Maximum performance and at the same time good handling were the most important facts for the design of the wing.

We chose Zone 52-21 as airfoil. It convinces in all sections of the flight, such as launch, speed and thermal.

The fuselage is very short, which results in excellent thermalling characteristics.

For more technical information read our
building instruction (pdf-file 2,3MB)
  

 
Details:
FUSELAGE
The fuselage is identical to the fuselage of FW5 Flow (competition version). It is produced as sandwich construction over the whole fuselage with airex und balsa as supporting material. This high effort in development and production is rewarded with fantastic weights of nearly 35g and simultaneously high stiffness.
The materials we used are:
- kevlar in the front for 2.4ghz receivers
- Unidirectional HM carbon in the back for good stiffness
- airex sandwich in the front and balsa sandwich in the back for good strength
The fuselage is shorter than with our previous models in the back and the front to center the masses. Thermalling characteristics, especially agility and sensitiveness for tharmals have clearly improved by this. You can easily stay in the thermal by making small steering movements or change the turning direction with nearly loosing no height.
Nose made of kevlar for installation of 2,4GHz.
CNC-milled radio board with access from the side for tidy mounting and quick changing of servos
One-piece fuselage built with unidirectional HM carbon
Pre-fabricated threads for fixing the wing
The end of the boom is shaped for easy mounting of the rudder.
   
WING  
- Airfoil: Zone airfoils from 52-21. These airfoils are very suitable for high start and far distance flights.
- Wing geometry:
- Area: 22,4dm²
- Aspect ratio: 10
We chose again a more wide wing tip like the fw4 has. We made tests with narrow wing tips to reduce mass at the tip. The result was bad during flight and also the strength of the tip decreased extremely. So we had to add more material to reach enough strength. That means in the end we had more weight and worse flying performance. So we chose again the wide tip that circles great and forgives mistakes. Now you can dare to thermal very low and near to obstacles.
- Wing materials:
The wing is built in glass/balsa sandwich construction with carbon reinforcements and high-modulus carbon spar. We use 50g glass as an outer layer in order to achieve a higher rigidity and durability.
For joining of the ailerons there are levers to be hooked in on the downside of the fuselage. The servos are located in the fuselage.
Colour on top and bottom, crossbeams on the bottom for good visibility.
There are 4 colours for the wing to choose from: red, orange, green, blue
White and yellow are also available, but offer poor contrast on the balsa.
Ergonomically designed throwing peg
   
STABILIZER  
By default, the kit is sold with tails made of rohacell core which is coated with glass and strengthened with carbon strips.
Alternatively, you can also install cheaper balsa stabs:
The tail consists of two sanded balsaboards with carbon reinforcements.
Scope of delivery:
The trailing edge of the balsaboards is pre-sanded. The nose radius and the carbon reinforcements (enclosed in the kit) are still to be completed.
Easy installation as the boom is pre-shaped for mounting the rudder.
The elevator is dismountable.
   
ACCESSORIES (not enclosed in kit)  
4 pieces of GP NiMH Accu 35AAAH are ideal for the power supply.
Protection bags for the wing


Construction:
Fuselage:
  • Shell construction, with airex and balsa as supporting material and carbon as outer skin. We used among other things HM-carbon (for stiffness in the boom) and kevlar (for installation of 2,4GHz).
Wing:
  • Shell made of balsa as supporting material and 50g glass fabric as outer skin
  • Spar booms made of carbon / shear web made of balsa planked with glass
Stabilizer:
  • Core of rohacell coated with glass, carbon strips as reinforcement.

Pre-fabrication:

 
  • Ailerons are cut and mounted with adhesive tape
  • Gap sealing of ailerons with adhesive
  • Screw mounting for wing is pre-fabricated
  • Openings in fuselage are cut, fitting of rudder is pre-fabricated
  • Kitparts (radio board, pushrods, levers, ballast etc.) are included in kit
  • Balsaboards for the stabilzer are pre-sanded. Nose radius, carbon reinforcement and mounting are still to be completed.
  • The building instruction can be downloaded from the website.


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