Birch Gun 
| Tier 4 | SPG
- Nation
- UK
- Tier
- 4
- Class
- SPG
- Premium
- No
- Gift
- No
- Wheeled
- No
- Credits
- 152.000
- Gold
- 0
- Views
- 5
In the 1920s, British engineers explored the idea of an SPG on a tank chassis. Development of the vehicle started in 1923 at the Royal Arsenal, Woolwich. It was based on the Vickers Medium Mark II, the chassis of which could carry the required modules. A total of seven prototypes were manufactured from 1926 through 1927 and joined the Experimental Mechanised Force established on May 1, 1927. Later, the unit was disbanded, along with the SPG program.
Default configuration
Radio
WS No. 19 Mk. I
| Signal range (m) | 400 |
Engine
Armstrong Siddeley V8
| Power (hp) | 90 |
| Fire chance | 0.20 |
Gun
Q.F. 18-Pr.
| Reload (s) | 15.89 |
| Fire rate | 3.780 |
| Aim time (s) | 5.14 |
| Dispersion | 0.460 |
| Traverse (°/s) | 31 |
| Ammo max | 112 |
| Elev (°) | 38 |
| Depress (°) | 5 |
Chassis
Birch Gun Mk. I
| Load limit (kg) | 0 |
| Traverse (°/s) | 16 |
All modules
Radio (3)
WS No. 19 Mk. I
• 15.000 cr DEFAULT | Signal range (m) | 400 |
Next modules: WS No. 19 Mk. II
WS No. 19 Mk. II
• 21.000 cr | Signal range (m) | 450 |
Next modules: WS No. 19 Mk. III
WS No. 19 Mk. III
• 22.000 cr | Signal range (m) | 550 |
Engine (2)
Armstrong Siddeley V8
DEFAULT | Power (hp) | 90 |
| Fire chance | 0.20 |
Next modules: Armstrong Siddeley V8 SC
Armstrong Siddeley V8 SC
• 350 cr | Power (hp) | 110 |
| Fire chance | 0.20 |
Gun (2)
Q.F. 18-Pr.
• 10.500 cr DEFAULT | Reload (s) | 15.89 |
| Fire rate | 3.780 |
| Aim time (s) | 5.14 |
| Dispersion | 0.460 |
| Traverse (°/s) | 31 |
| Ammo max | 112 |
| Elev (°) | 38 |
| Depress (°) | 5 |
Next modules: Q.F. 25-Pr. Gun/How.
Q.F. 25-Pr. Gun/How.
• 28.500 cr | Reload (s) | 15.89 |
| Fire rate | 3.780 |
| Aim time (s) | 5.14 |
| Dispersion | 0.460 |
| Traverse (°/s) | 31 |
| Ammo max | 112 |
| Elev (°) | 45 |
| Depress (°) | 5 |
Chassis (2)
Birch Gun Mk. I
• 2.000 cr DEFAULT | Load limit (kg) | 0 |
| Traverse (°/s) | 16 |
Next modules: Birch Gun Mk. II
Birch Gun Mk. II
• 4.650 cr | Load limit (kg) | 0 |
| Traverse (°/s) | 18 |
