SPG: Birch Gun

Birch Gun

The first SPG originally designed in Great Britain. Development started in 1923. The prototype was built on the basis of the Vickers Medium Mark II in 1925. A few prototypes were manufactured, and underwent trials starting in 1925. The project was canceled in 1928 due to lack of interest by the British government.

Characteristics for a vehicle with basic configuration and a crew with 100% qualification.

Main Characteristics

Tier IV
Hit Points 190 HP
Weight/Load Limit 12.1 / 12.2 t
Price 152,000
Crew
  1. Commander (Radio Operator)
  2. Gunner
  3. Gunner
  4. Driver
  5. Loader
  6. Loader
Mobility
Engine Power 90 h.p.
Speed Limit 45 km/h
Traverse Speed 16 deg/sec
Turret Traverse Speed 16 deg/sec
Armor
Hull Armor (mm)
  • front 6
  • sides 6
  • rear 6
Armament
Gun Q.F. 18-Pr.
Ammunition 150 pcs
Damage 195-325 HP
Armor Penetration 32-53 mm
Rate of Fire 6.82 rounds/min
View Range 340 m
Signal Range 400 m

Configuration

Guns

Guns

Tier Gun Damage
(НР)
Penetration
(mm)
Rate of Fire
(rounds/min)
Price
(credits)
III Q.F. 18-Pr. 260/170 42/65 6.82 10,500
IV Q.F. 25-Pr. Gun/How. 280/180/180 44/92/71 6.25 28,500
Engines

Engines

Tier Engine Power
(h.p.)
Chance of Fire
(%)
Price
(credits)
I Armstrong Siddeley V8 90 20 0
I Armstrong Siddeley V8 SC 110 20 350
Suspensions

Suspensions

Tier Suspension Load Limit
(t)
Traverse Speed
(deg/sec)
Price
(credits)
III Birch Gun Mk. I 12.2 16 2,000
IV Birch Gun Mk. II 14.2 18 4,650
Radios

Radios

Tier Radio Signal Range
(m)
Price
(credits)
VI WS No. 19 Mk. I 400 15,000
VII WS No. 19 Mk. II 450 21,000
VIII WS No. 19 Mk. III 550 22,000