Electromagnetic Railgun Project Overview

Introduction

• US Navy Development: The US Navy has been working on an electromagnetic railgun for over a decade.
• Performance: Uses electricity to accelerate projectiles to Mach 6 (~7400 km/h) with a range over 160 km.

Project Sponsorship

• World of Warships: Sponsored the project to build a small-scale version of the Navy's railgun.
• Game Features: Action and strategic gameplay; bonuses for the first 300 viewers using the provided link.

Railgun Mechanics

• Basic Principle: Converts electrical power into kinetic energy via a magnetic field to accelerate a projectile.
• Power Supply: Critical factor is the current pushed through the rails.
• Capacitors over Batteries: Uses capacitors instead of lithium polymer batteries for higher current discharge.

Building the Power Supply

• Capacitor Bank: 16 capacitors used; tests involve safety precautions like safety glasses and hearing protection.
• Charging Circuit Test: Step-down mechanism to measure voltage, taking about two minutes to charge.
• Initial Tests & Adjustments: CNC lathe use, ensuring projectile speed prevents welding itself to rails.

Railgun Testing

• Initial Firing Tests: Shots at different voltage levels (e.g., 220V, 230V).
• Performance Observations: Projectile incineration on impact, slow-motion analysis.
• System Components:
  • Main power switch
  • Three position power switch (neutral, charge, fire)
  • Voltmeter to monitor capacitor charge
  • Resistor-based drainage for safety

Sponsorship Acknowledgment

• World of Warships: Noted the game’s detailed mechanics and constant updates.
• Sign-Up Bonuses: Offered substantial in-game bonuses for initial sign-ups.
• Legal Constraints: Design limited to classify as an airgun under Canadian gun control laws.

Conclusion

• Project Takeaway: Successful testing within legal constraints; appreciation for viewer support.
• Future Projects: Encourages viewers to support sponsors for more large-scale projects.
• Project Memorabilia: Some projectiles auctioned on eBay starting at $1.

Safety Note

• PPE Importance: Highlighted need for protective equipment during such experiments.