zet-zwo 1120

Learning from nature…

Many developments in aviation have long been inspired by natural forms — winglets on modern airliners are a perfect example.

One such inspiration is the seed of Alsomitra macrocarpa, a tropical plant native to Southeast Asia. Its unique shape has influenced several experimental aircraft designs over the years.

The Zet-Zwo builds on this idea as an evolution of the Zanonia, one of our first 3D-printable models. Instead of using stabilizers, it relies on geometric twist, lift distribution, and a refined airfoil to achieve stable flight characteristics.

The result is a surprisingly fast and agile wing with an impressive roll rate. At the same time, its unconventional design brings some unique flight behavior — such as slight wobbling in certain situations, especially with abrupt inputs at low speeds.

For us, these quirks are exactly what make the Zet-Zwo stand out from the mainstream. With only around 10 parts, it’s also extremely quick to print.

Designed for LW-PLA combined with standard filament (PLA or PETG). See the manual for required materials.