Carbon fiber GTC-300 Adustable carbon fiber wing.
With a span of 67 or 61 inches and a height of 13 inches, the GTC-300
is an adjustable wing that means serious business. The GTC-300 3D
airfoil shape allows for optimal airflow that reduces drag yet supplies
an effective amount of downforce. Computational Fluid Dynamics (CFD)
analysis was performed on this wing to support validation of its
Mounting bases sit at edges of trunk lid.. 67" airfoil
Each GTC Series airfoil is composed of lightweight and durable carbon
fiber reinforced polymer (CFRP) or fiber reinforced polymer (FRP)
composite materials. CFRP models contain pre-pregnated woven carbon
fiber sheets for superior strength and low weight. FRP models contain
woven pre-pregnated glass fiber sheets for high strength at reasonable
weight. All CFRP and FRP airfoils are made using pre-pregnated
composite manufacturing processes (i.e. high-temperature autoclave and
vacuum bagging) in high-quality aluminum molds.
Supporting the airfoils are 10mm "aircraft grade" 6061 billet aluminum pedestals that come in a flat black powder coat finish.
Center section to outer section angle difference: 15 degrees
Gurney flaps are now available for all of APR`s GTC-series (200/300/500)
wings. These are super lightweight, made with carbon fiber using the
pre-pregnated carbon process, and conform perfectly to the contours of
the GTC-series 3D airfoils. They are easily attached using the included
The Gurney flap (a.k.a. wickerbill) is an aerodynamic device that was
originally pioneered and developed in the 1970s by a racing driver named
Dan Gurney. Unbeknownst to his competition, this device was used to
increase downforce while minimizing increase in drag. He found that not
only did this device increase the lift/drag (L/D) ratios, it also
increased the stalling angles (so he could operate the airfoils at
greater pitch angles). It took a few years for everyone else to catch
on to its purpose, and now, the Gurney flap (or similar device) can be
seen in race cars and even airplanes all over the world.
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