IRON NEST: Heavy Turret Simulator · Tool

Active calculator

IRON NEST Firing Solution Calculator

Two-stage artillery planning tool: enter gun and target coordinates to get range and bearing, then add muzzle velocity to get low/high elevation angles and flight time.

Step 1 · Map measurement

Enter the gun position and the received target coordinates from the tactical map.

How many meters one tactical-map grid unit represents.

Step 2 · Ballistic solution

Enter muzzle velocity for your shell and gravity. The calculator returns low and high angle solutions for the range from Step 1.

Observed shell velocity — differs per shell type.

How to use

  1. Step 1: enter the gun position and the received target coordinates from the tactical map.
  2. Set the map scale — how many meters one grid unit represents.
  3. Step 2: enter the muzzle velocity of your shell (per shell type) and gravity.
  4. Read range, bearing from north, low/high elevation angles, and flight time.

Formula

Range R = v²·sin(2θ)/g → θ = 0.5·asin(R·g/v²) (vacuum trajectory). High angle = 90° − low angle. Flight time t = R / (v·cos θ).

P(at least one) = 1 - (1 - p)^n

Examples

Grid to meters

Gun (120, 84) to target (305, 196) at a 5 m/grid scale: range ≈ √(185² + 112²) ≈ 216.3 grid ≈ 1,081 m.

Elevation from range

1,081 m at 220 m/s with g = 9.81: low angle ≈ 6.3°, high angle ≈ 83.7°, flight time ≈ 4.9 s.

Physics estimate using a vacuum model. Air resistance, map elevation, and in-game artillery behavior are not modeled. EratoGame is not affiliated with the IRON NEST developers.

Questions

Tool FAQ

Are these official IRON NEST values?

No. The tool uses standard ballistic math on the values you enter. The game simulates its own physics, so treat results as planning estimates and verify in-game.

Why are there two angles?

The same range can be hit with a flat (low) or lobbed (high) trajectory. Use high angle over obstacles — it also means longer flight time.

EratoGame is an independent game information and tools platform and is not affiliated with the game developers or platform owners unless explicitly stated. Demo hub content is replaceable sample data for product structure — not an official wiki.