28″ Eppler 472 Symmetrical 3D Wing Kit (Two Pack)

Master the 3D skies with a symmetrical wing built for extreme maneuverability. This 28-inch wing kit utilizes the Eppler 472 symmetrical airfoil configured in a straight leading edge, making it the ideal choice for small-scale 3D aerobatic planes or custom “flat-plate” upgrades.

The 3D Advantage of the Eppler 472:

The Eppler 472 is a thick, symmetrical profile that excels in post-stall flight. With its 12% maximum thickness and blunt leading edge, this wing is designed to:

• Eliminate Tip Stalls: Maintains predictable airflow at extreme angles of attack.

• Neutral Flight: Provides identical performance whether flying upright or inverted.

• High Alpha Stability: Perfect for stable hovers, harriers, and rock-free elevators.

Materials & Construction:

• Core: Precision-cut and sanded 1# Expanded Polystyrene  Foam (EPS) with precut spar slots—extremely lightweight and easy to repair with lightweight spackle.

• I-Beam Spar: Integrated Carbon Fiber spars (top and bottom) to handle high-G snaps and aggressive pull-outs.

• Aileron: Cut your own aileron to your desired cord width.

• Span: 28 Inches—the perfect size for backyard 3D or gym flying.

Note that this is a two pack so you are getting enough material to build two custom aerobatic planes or upgrade two of your existing “flat-plate” planes.

Kit Includes:

• QTY 2 – EPS Wing Set (left and right)
• QTY 8 – 1.5mm Carbon Fiber Spars (top and bottom)
• QTY 4 – Stainless Steal Spar Joiner Tubes (top and bottom)

Pro-Tips:

• For the best strength-to-weight ratio, I recommend finishing these wings with a high-quality packing tape. It provides a durable skin that significantly increases torsional rigidity while keeping the airframe light enough for high-performance 3D maneuvers.  Packing tape is a low cost alternative to Monokote and repairs are easy, especially with colored pack tape.
• Use epoxy to glue the spar to the joiner tubes.  Once cured, mix up additional epoxy to glue the wings together and the spar into the foam precut slots.  Once everything is cured, you can cut off the excess spar material at the wing tips.
• Use the wing beds during the gluing and covering phases of the wing build for a straight wing.  Just be sure the bed halves are level with each other and add sheets of paper under the lower bed if needed to raise it to the same level of the other half.  Place wax paper down first when gluing to keep the wing from gluing to the bed.