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Great Planes Spirit Elite
by Klaus
Weiss..........reviewed 12/99 Heathcote
Soaring League
In this age of Almost Ready to Fly and Ready To Fly models,
Great Planes still offer a variety of 'builders' kits. One of
their latest designs is the two metre Spirit Elite sailplane,
based on the popular and contest winning Spirit. This model
displays a departure from convention by Great Planes, in that it
offers a new, blended airfoil section as well as flaps, ailerons
and a sleeker fuselage. This design should give the Spirit Elite
the potential of flight characteristics and the performance
optimisation, generally only found in the larger wingspan, high
tech, high priced counterparts.
With an increasing interest in the 2 metre sailplane class in
Australia and a resurgence in the number of radio control Glider
pilots here, this should prove to be a winning combination for
Great Planes.
The Spirit Elite differs in several areas, from previous
Spirit designs. The fuselage is a lot slimmer and longer in the
nose and tail moments. Radio equipment requires the use of micro
and mini servos. The wing in particular has a much thinner
section, utilising the Selig/Ashok Gopalarathnam 7035 airfoil at
the root, blending into the S.A. 7036 section at the tip. This
combination should give the Elite a very good Lift/Drag ratio
and excellent performance in windy conditions. Like the Spirit
100, the Elite lets you chose the type of wing you are going to
build. There is the option of a dihedral wing with flaps and
ailerons, or the polyhedral version. The polyhedral wing offers
more stability and is generally easier to fly, so this
alternative should suit novice pilots better. With the straight
dihedral, full house option, there is a wide range of advanced
mixing and programming opportunities available, for those who
have computer radios. It will take a while to test and optimise
the full potential of this sailplane, but at first glance, it
sure looks a winner.
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