Unreviewed Longbow III-type Plasma Railgun

[Ethanael Halscott]

Longbow III-type Plasma Railgun​

OUT OF CHARACTER INFORMATION

• Intent: To modernize the Longbow II.
• Image Source: N/A
• Canon Link: N/A
• Permissions: N/A
• Primary Source: Longbow II, Incinerator Plasma Railgun

PRODUCTION INFORMATION

• Manufacturer: Primo Victorian Enterprises
• Affiliation: Imperial Commonwealth of Dosuun
• Market Status: Closed Market
• Model: CPC-PRGL3-M1
• Modularity: Yes
• Production: Limited
• Material:
  
  • Galven Coil Rail Matrix
  • Synthek Energy Crystal Matrix
  • Boreas Crystal Coolant Loops
  • Trilamnium-ThermaVault Heat Sheath
  • Quadanium Reinforced Barrel Frame
  • Durasteel Housing, Crystalplast Internal Containment

TECHNICAL SPECIFICATIONS

• Classification: Plasma Railgun
• Size: Very large
• Weight: Very Heavy
• Ammunition Type: Plasma bolt, Ship Power + Tibanna Gas Plasma Feed
• Ammunition Capacity: Very Large
• Effective Range: Battlefield
• Rate of Fire: Low
• Damage Output: Very High
• Recoil: Average

SPECIAL FEATURES

• Plasma Damage Over Time: 10–15 seconds of residual energy burn post-impact
• Pulse-Fire Mode: Fires lower-powered shots with reduced recharge time
• Overcharge Functionality: High-risk, high-output burst for fleet-breaking
• Heuristic Target Prediction: AI-assisted fire control prioritizes weakened targets
• Stabilized Plasma Core: Uses Boreas–Synthek matrix to replace volatile Siaber systems
• Plasma Cohesion Guidance: Galven-guided bolt maintains rail cohesion at long range
• Trilamnium Thermal Sheathing: Prevents overheating & protects from internal blowback
• Zero Physical Ammunition: No slugs; relies solely on internal capacitors and plasma feed
• Built-In Pulse Coolant Baffles: Allows 3-shot cycling at 70% charge before hard cooldown

STRENGTHS

• Extreme Range: Optimized for long-to-battlefield range plasma penetration
• Damage Over Time: Energy continues to burn through shields and hull after impact
• Stabilized Platform: Safe, crystal-stable compared to Longbow II or legacy models
• Pulse Adaptability: Can choose between burst pacing or full alpha-charge
• Hard Counter to Unshielded Hulls: Devastates exposed systems & command decks
• Improved Cooling System: Avoids catastrophic thermal pushback or discharge failure
• Ship Integration Range: Mountable on vessels ≥ 1,500 meters

WEAKNESSES

• Power-Hungry: Requires full capacitor cycling to avoid load starvation
• Low Rate of Fire: Charge-based system sacrifices frequency for impact
• Plasma Falloff at Short Range: Energy destabilizes and loses effectiveness
• Cannot Target Small Craft: Useless against corvettes or starfighters
• No Ammunition Flexibility: Does not support kinetic or modular payload types
• Cooling Lag on Overcharge: Hard shutdown may be required if fired too quickly

DESCRIPTION
Born from the heat-warped ghosts of the Incinerator-class, the Longbow III is the final evolution of a doctrine that values patience, power, and plasma precision. While earlier models such as the Mk 78 or Longbow II struggled with unstable crystals, charge delays, and catastrophic blowback, the PRG-XV integrates modern cooling technologies, Synthek crystal stabilization, and pulse-logic baffles to make it a weapon of calculated annihilation.

The plasma bolt—guided magnetically along a Galven-enforced rail—slams into enemy hulls and persists, chewing through shielding and embedded systems with searing, corrosive heat. Even after the bolt fades, residual plasma adhesion leaves fire trails across ventral plating or bridge decks. Designed for siege cruisers and heavy fleet line ships, Longbow III is no longer a weapon of theory—it is doctrine, designed to create kill windows for Nagata rounds, Javelin spears, or Voidbreaker payloads.