Evolution x-tail - Introduction
The contest model Evolution is made for the F3B model category. The design by Günther AichHolzer follows the current trend in the development of models for this category. This means a small fuselage diameter, a thinner wing and smaller wing area in comparison to the model Eagle.
LThe airfoil is from Max Steidle (Wing: M 1580 and M1585, other: M08), who also made airfoils for models such as the Crossfire or Tool. He deserves acknowledgments. The Evolution is the first serial produced model with no control horns on the outside To reach the maximal precision in the prototype production, a 3D mill cutter was used. The programs were made with the help of our webmaster, Michal Michna.
The wing of the model has a slight V form. The surfaces are moved using a torsion control. Ballast is placed in the wings. The standard version is a wing sandwich made of carbon fibre, Rohacel and glass fibre. The spar of the wing is made of UMS carbon. The fuselage, mostly of carbon has an improved system of elevator control and a reinforced rudder construction. The diameter is kept to a minimum.
Evolution x-tail - Details
|Conception:||Two part wing, two part elevator, x-tail|
|Wing span:||3130 mm|
|Wing area:||59,58 dm2|
|Elevator area:||5,02 dm2|
|Wing airfoil:||M 1580 and M1585|
|Maximum servo width:||wing center: 12 mm (Futaba S3150 or Airtronics 94761Z) , wing tip: 12 mm (Futaba S3150), fuselage: 12 mm (Graupner 3871)|
|Wing||carbon-rohacel-glass or carbon-rohacel-carbon|
Evolution x-tail - Performance
Default color schemes
White color scheme
Blue color scheme:
Orange color scheme
Yellow color scheme
White-Red color scheme
Custom color scheme desinger
Evolution x-tail - Mounting
Torsion "RDS" servo drive...
Thin and precision servo driving surfaces. Instalation instruction...
To form the cogwheel of the servo into the aluminium use a good liquid mould-release. You can use slightly thickened Epoxy for this.
You have two different bended steel. The more bended (55 deg.) is for flap and the other one (40 deg) for aileron.
First you have to fix the servo-mount in the wing. Make a drawing on the wing like shown on the picture and glue the servo mount in the right position.
Next step is to glue the brass-tube into the bar.
Last step is to glue the bended steel into the aluminium. To gauge it on the right place you take a long time-epoxy and mount it in the wing. Then you must move the flap up and down two or three times and the steel will gauge automaticly. Fix the flap in a neutral position and wait 12 hours. Make sure that the little screw on the aluminium is on the upper side !!!!
After all use a teflon-grease on the steel and the slot. This helps to minimize abrasion and radial clearance in the future.
For the installation of Futaba servos S3150/S3155 for the RDS linkage we recommend these servo frames: http://www.rcsolutions.ch/index.php?show=64
Evolution x-tail - Settings
Settings templatesEVOLUTION wing settings template
Settings table for EVOLUTION
|Termik||3||0,5 to flap||0||0|
|Start||14||1 to flap||0||0|
|Towhook: 121 mm from end of cabin.|
|Center of gravity: from the leading edge 96-98 mm|
|up deflection/down deflection|
Evolution x-tail - Pictures
Franta Sobotka training day - 18.6.2009
CAD - CAM pre-production form
Virtual testing servos in fuse
Pre-production color scheme
Production first prototype models
Evolution x-tail - Reference
NEW Kanoh's RC Sailplane structure (japanese):
Evolution cross-tail article - http://model-sailplane.dialog.jp/evolution01.html| Photo 1| Photo 2| Photo 3| Photo 4| Photo 5| Photo 6
Other Evolution cross-tail article - http://model-sailplane.dialog.jp/evolution_2-01.html | Photo 1| Photo 2| Photo 3
Video from Evolution flight:
Evolution in aufwind: