Short description

Higih perfomance F3J competition glider. X and NEW 2 part detachable V-tail versions.


Detailed product information:

Shadow invincible for F3J competitions

Shadow summarizes the newest aerodynamic knowledge and experiences of many successful F3J-models to a new concept. The main goal of development was to create a competitive model to suit all weather conditions.

The main novelty in this design is the use of the new HN507M1 airfoil by Norbert Habe. The new HN airfoil is designed to allow camber changes with minimal changes in pitch. The airfoil has a very wide speed range. Its full potential is obtained when using full flap control over different flight configuration: a couple of degrees down in thermal turns, a degree reflex in transition. Small changes in camber result substantial changes in behavior.

The nearly elliptical wing shape with high aspect ratio combined with exceptionally light wing loading, very high strength and unusually sensitive handling characteristics, make the Shadow a formidable F3J competition ship.

The wings feature a hollow carbon spar, very stiff yet very light and with a light wing skin of glass/Herex. An additional carbon lay-up between the leading edge and the spar (D-Box), give the wing additional torsion stiffness.

The fuselage is a special Kevlar/carbon lay-up to save maximum of weight. The ballast tube and tail pushrods are installed. The fuselage has also a ballast tube on the side of the fuse, below the wings, which can accept up to 600 g of ballast.

The Shadow has an adjustable tow hook to optimize hand tows. Hollow core moulded wings are 3-piece design. The center panel bolts down to the fuse. Tips are connected to the center panel by means of rectangular carbon wing joiner and two locating pins. All moving parts are gapless hinged. Special bottom hinged flaps (for full 90 deg. down flaps) lead to stable approach and accurate landings.

The test models have a ready to flight weight under 2000 g. We have found out that models are built sturdy yet are light enough for competitions.

The kit is supplied with:

- Carbon/kevlar fuselage
- Fully molded composite wing panels
- Fully molded composite tail


Servo recommendations:

- Hitec HS-56HB (elevator, rudder )
- Hitec HS-125MG (ailerons, flaps)
- Digital Hitec HS-5125MG (ailerons, flaps)
- Digital Futaba S3150 (ailerons, elevator, flaps)
- Digital Graupner DS368 (elevator, flaps)

Servo set - ordered with plane:

4 Digital Futaba S3150 - 150 EUR

*Price - include VAT (20%)