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The Sprite Thermal is a highly efficient
2-metre model that is equally at home on the slope or thermal
soaring on a flat field. The combination of low weight with the
highly efficient AG40/41/42/43 wing section and the ability to
carry ballast ensures the model has a wide speed range and an
excellent soaring ability in a wide range of weather conditions.
The 5 degrees of tip dihedral combined with the wide chord flaps
and ailerons produces an outstanding thermal soarer with a wide
speed range. The flaps allow camber changing of the wing section
for all phases of flight and crow braking for those precision
landings.
The Kevlar fuselage is 2.4 GHz friendly and is fitted with a
carbon canopy complete with an integrated catch. The wing is
mounted on a streamlined pylon to reduce drag. The removable
tailplane and two-piece wings make the Sprite easy to transport.
The model is highly pre-fabricated and is delivered with the
carbon tail boom, ballast tube and tailplane mount ready fitted
to the fuselage. The bowden linkages and the tailplane bell-crank
linkage are factory installed. The only work required to finish
the model apart from the radio installation is to glue the fin
into the tailplane mount and fit the rudder horn.
The Sprite Thermal is available with
an Electric fuselage. The low overall weight and superb aerodynamic
efficiency gives an electric model with outstanding thermal soaring
capabilities which allows the boundaries of soaring flight to
be explored where it would be difficult to launch from a winch
or tow line.
Ballast Sets are available as spare
parts. |
Sprite-Hotliner-Thermik-Ridge soaring
Ballast set for SPRITE THERMAL and
SPRITE HOT (Glass version)
The ballast set for Sprite THERMAL and Sprite HOT (Glass version)
is designed for thermal soaring flights in varying wind speed
conditions
to give the necessary degree of penetration.
The Ballast is assembled on the wire
cable, which allows the ballast set to
be flexible making it easier to fit into the ballast tube.
Ordering a complete ballast set makes
it possible to have two separate sets of
ballast pre- assembeled for a quick change in ballast due to
a weather change just before the launch.
The ballast has several fixings to
facilitate trim changes.
Components of the ballast set are:
1) Aluminium slugs - 16mm diameter
with a length of 50mm - 6 pcs;
2) Brass slugs - 16mm diameter with
a length of 52mm - 6 pcs;
3) Non-corrosive wire for holding
the ballast slugs - 2 pcs;
4) Screws for fixing the ballast
into the fuselage. (Plus one spare screw);
5) Hexagon Allen Key for the screws.
Typical Ballast weights for the SPRITE
THERMAL and SPRITE HOT(glass)
For a model with a flying weight of 860g:
Ballast weight = 156g
Wing loading: 27.83 g/dm2
Ballast weight = 480g
Wing loading: 36.7 g/dm2
Ballast weight = 265g
Wing loading: 30.82 g/dm2
Ballast weight = 370g
Wing loading: 33.69 g/dm2
Homepage: www.fvk.de
Technical questions
should be addressed to:-
Brian Anderson Tel: **44 191 3887649
e-mail: Technical
questions
 
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