The 18-pounder was a very modern field gun in 1914, having only been adopted in 1909. The British had not produced enough to equip the Territorial Force with 18-pounders, having to rely on the outdated 15-pounders which did not have full pneumatic recoil.
Key:
- Gun tube
- Recoil guides
- Cradle
- Recoil spring case
- Upper carriage
- Trail
- Brake arms
- Traversing lever
- Spade
- Trail eye
- Elevating screw
- Rocking bar sight
- Clinometer
- Dial sight
- Firing lever
- Guard (prevents crewmember from catching arm)
- Horn connecting gun and buffer
- Gun shield
Source: H. A. Bethell, Modern Artillery in the Field