Top Flite Metrick User Manual

Metrick, Rc-29 sailplane instructions, Top flite models inc

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METRICK

RC-29 SAILPLANE INSTRUCTIONS

INTRODUCTION

There is no question, two-meter sailplanes have arrived
in the mainstream of the modeling community and show
every sign of remaining for a long time. The reasons why
are many and varied but the fact that they are easier to
build and still provide every bit the flyability of the larger
Standard Class and Open Class sailplanes should not be
overlooked. Until quite recently, the designs available,
either in kit or plan form, have generally reflected the

"floater" approach, with emphasis on very light con-

struction yielding exceedingly low wing-loadings. Air-

foils on these aircraft have usually been variations on the
ever-present Clark-Y The models themselves have been

typified by a kind of back-to-basics look as opposed to the

considerable design work showing-up in the Standard
and Open classes. While these "first generation"-type

two-meter designs filled the initial need, competition has

begun to disclose the drawbacks to lightly loaded and

constructed models especially those using airfoils which

do not provide penetration in anything less than no-wind

conditions. It was inevitable that designers would begin
to explore the sophistication of two-meter sailplanes and
their resultant designs are now beginning to show-up on

flying fields. These designs are now being referred to as

"second generation." Your Top Flite METRICK two-meter

sailplane definitely falls into this category.

The METRICK is the fulfillment of several important
design criteria that we felt a second-generation two-

meter sailplane should possess:

1. The ability to be flown in a wide variety of wind

conditions and yet remain competitive by virtue of
airfoil efficiency and relatively clean aerodynamics.

2. Airframe strength to survive and even take advantage

of high-velocity 12-volt winch launches.

3. Expandability to allow the use of spoilers, releasable

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