Heavy mortars are large-calibre mortars designed to fire a relatively heavy shell on a high angle trajectory. Such weapons have a relatively short range, but are usually less complex than similar calibre field artillery.
This category includes the "Trench Mortars" of World War I which were all too heavy and cumbersome, and hence lacked the mobility, to be classed as infantry mortars.
Muzzle-loading
Breech-loading
Notes and references
- Internal bore size not warhead size. Comparable to 6 inch mortars
- Bore size, not bomb size, which was much larger
- 90 mm spigot size. Bomb was 200 mm
- 169 mm spigot size. Bomb was 380 mm.