So a well
balanced design using state of the art technology, yet completely hand made process. Lubos (the designer) likes airframes that allows him to
change in flight characteristics by the use of flaps,
increasing the L/D, lift or speed. The AH airfoil was
designed with this in mind, first it allows to make
camber changes with minimal changes in pitch and
allowing a very low drag airfoil for the speed runs in F3B competition.
The idea was also to
fly with "dynamic" camber change, meaning that the camber control was on
the stick like the elevator, allowing to
continuously adjust or correct the flight like you would adjust or
correct pitch with the elevator control.
Hollow core moulded wings with special bottom hinged flaps
(for full 90 deg. down flaps) leads to stable approach and accurate landings. The
AH Airfoil has a very wide speed range, it's full
potential can be obtained when using full flap control over the different flight
configuration: a couple of degrees down in thermal turns, a degree reflex in transition.
Small changes in camber have substantial changes in behaviour. The whole model is built strong yet light achieving an average weight of
around 2.1-2.3 kg.
The versatility and it's ease of use will allow aggressive competition
flying as well as everyday smooth soaring.
Options available and kit contents:
Coloured strong Fiberglas fuse with carbon reinforcement tows, removable carbon
servo tray. Tail pushrods are installed. Fuselage has also one ballast tube, on
the bottom of the fuse, below the wings, which can accept up to one pound of lead. The
Eraser has an adjustable tow hook to optimize hand tows. Hollow core moulded wings are in
two pieces. Joined at the center by mean of a strong rectangular carbon joiner and two locating pins. All moving parts
are gapless hinged. Available in V-tail or cross tail configuration. Moulded servo cover, Allen keys for the different bolts and hardware
T/D-F3J (carbon D-box): This
design was created particularly for the US TD contests, a real landing
machine, light and stable. Fuselage is a
special Kevlar/carbon lay-up, to save maximum of weight, ballast tube,
carbon pushrods. The wings feature a hollow carbon spar, very stiff yet very
light and with a light wing skin of glass/balsa or Rohacell/glass,
an additional carbon lay-up between the leading edge and
the spar, making the wing more durable for hand grabbing and adding
slight tortional stiffness.. This
is a contender as being the lightest of all version and at such a light weight you
can't miss the spot any more.
- Victor F3B
Full Carbon has been optimized
for the F3B competition. Drastically reinforced with full carbon lay-up.
This version is also well suited for F3F racing and general slope flying.
Construction is strengthened by adding a skin of carbon inside the wing skin
full span, glass/balsa or Rohacell/carbon. This adds tremendous
stiffness to the wing. The
fuselage is full Kevlar/carbon construction and so very stiff as well, pushrods are also carbon and two ballast tubes on the bottom of the fuselage
permits to upload with ballast for max. speed performance. It is amazing how
much strength you can achieve with optimal carbon layout. This is a also a great plane
for all-round flying, in particular if can fly often on the slope.
Victor, F3J, TD,
D-box, price: N/A
Victor , F3B,
Following options and accessories are also
- Custom paint scheme.
- Servo packages (Hitec, JR, Futaba) and wing
servo wire harness.
- Carry bags.
Typical kit content