Firing solution calculator
Enter the two observer positions and the bearings they reported. The tool crosses them, then re-measures from the nest — which is the step that decides whether the shell lands, and the step most operators skip.
The geometry here is exact and version-independent. Powder charge is deliberately not computed: charge tables are measured from the live build and change with patches, so keep your own table beside this and match it against the range below.
Solution
- Gun bearing from nest
- 7.9°
- Range from nest
- 1,263 map units
- Target position
- 4,374 , 2,850
- Observer range to target
- O1 2,236 · O2 3,088
Bearing difference: 110.1°
Degrees between what Observer 1 reported and what your guns need. Copying the observer's bearing straight onto the gun puts the round this far off.
Bearings are degrees clockwise from north, matching the map protractor. Positions use the map grid: X east, Y north.