November 17, 2025
Description
This is a 3D-printed whistling air projectile designed for foam dart launchers, air blasters, and similar low-energy launching systems. As it flies, air enters the front intake and passes through an internal whistle channel, creating a loud, clean “whoooosh/whistle” sound in flight.
The body uses a long, low-drag profile with stabilizing tail fins to keep it flying straight so the whistle stays consistent. The internal whistle cavity was tuned through several iterations to maximize sound even at low speeds.
License:
Standard Digital File License