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IJN - Type 89 12.7cm AA gun

11.4k NavalGunnery  2 hours ago


IJN Type 89 127mm Shielded Mount (Model A1)

The 5-inch Type 89 gun was the primary Heavy AA mount used by the IJN on its naval warships throughout the Second World War. Although regarded by the Japanese as a good gun in terms of elevation and traverse capabilities, the gun suffered from slow muzzle velocity, resulting in a lower effective range overall.

The specific model featured in this build is the Shielded mount, Type A1 mod. 3 variant, which is more commonly found on the Yamato-class battleships alongside their open-mount counterparts.

Picture of the 1:1 Scale Yamato Film Set used on the Movie "Otokotachi no Yamato" (2005) showing both the Shielded and Open mount Type 89 alongside a handful of shielded 25mm mounts

Builder Notes

Given the use of a very brutely forced Part Efficient Methods, the hangar view upon loading would look something like this...

Dont worry, this is normal.


Specifications

Caliber : 127mm (5 inches)
Muzzle Velocity : 700 m/s (2,360 ft/s)
Rate of Fire : 8 rounds per minutes (7.5 seconds)
Elevation : -7/+90 degrees
Traverse : -180/+180 degrees

Activate 1 - Activate Gun

VTOL & Trim - Turret Controls

But Heres The Blinker

This build features a little TextLabel Animation on the cover shield of the pointer station which opens and closes whenever the gun is activated!


FT Fuze with Variance

Using a "randomizer" on an FT FuseInput, the Mechanical Time Fuze of this gun feels more realistic, given it won't always detonate on the same point.

General Characteristics

  • Created On Android
  • Wingspan 24.6ft (7.5m)
  • Length 28.2ft (8.6m)
  • Height 16.1ft (4.9m)
  • Empty Weight 4,426lbs (2,007kg)
  • Loaded Weight 4,636lbs (2,102kg)

Performance

  • Wing Loading N/A
  • Wing Area 0.0ft2 (0.0m2)
  • Drag Points 16633

Parts

  • Number of Parts 18
  • Control Surfaces 0
  • Performance Cost 106