38mm Fin Stabilized Smoke Projectile - Current Prototype Model
38mm Fin Stabilized Smoke Projectile - Current Prototype Model
Im designing a prototype smoke projectile for 38mm launchers. This is designed around using a 38mm 12" barrel for the Odin Launcher. The smoke composition will be TPA based. I'm going to attempt an IR/Thermal blocking smoke composition but if all else fails it will be the same TPA composition that Invention Incarnate uses.
Design Highlights:
- Von Kármán ogive nose cone, optimal for subsonic projectiles.
- Polygonal rifled integrated pusher using an extended 4.5" Mathetatics & AWCY? M.I.L.C shell, provides initial rotation.
- 6 curved folding fins, spring loaded for stabilization and further rotation during flight.
- 3D printed housing using a DIY phenolic liner for heat mitigation.
- Helical igniter for full core ignition.
This will be a bore-riding projectile for an increased gas seal and accuracy. The 4.5" shell will cover the fins when folded so that they're captive.
I've ran this through a few AI models who have calculated that with 87g of a smoke composition this projectile could reach a theoretical 45° launch distance of 160-200m at a muzzle velocity of 240-275fps.
Looking for thoughts and suggestions. Of course this design can be scaled from 26.5mm to 40mm and shortened as needed.