Ultima Self Propelled Howitzer

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Ultima Self Propelled Howitzer
AS-90 Howitzer 1.jpg
Ultima Mark 2 Self Propelled Howitzer of C Battery, Fulham Horse Artillery)
TypeSelf-propelled artillery
Place of originArthurista
Specifications
Weight55 tonnes
Length11.7m
Width3.56m
Height3.5m
Crew5 (Loader, Gunner, Assistant Gunner, Commander, Driver)

Shellseparate loading, bagged charge
Caliber155 mm
Breechinterrupted screw
Rate of fire3 rounds in 9.0 seconds (Burst), 10 round/min (sustained)
Effective firing range
  • 30km (conventional)
  • 35km (base bleed)
  • 40km (RAP)
  • 60km (guided)

Main
armament
155 mm L/39 Howitzer (Mark 1)
155mm L/52 Howitzer (Mark 2)
Secondary
armament
Browning HMG, pintle mounted
EngineArthuristan Motors AVE-2 V-12 turbodiesel (Mark 1)
(1,200kW)
Operational
range
500km
Speed75km/h

The Ultima is an Arthuristan self-propelled gun system. Conceived as a replacement for the increasing obsolete M109 howitzer and FV433 Abbot SPG, the Ultima entered service in the early-90s. The first model, the Ultima Mark 1, was armed with a shorter L/39 howitzer. They were upgraded to the current Mark 2 configuration with a L/52 gun in the early-2000s. The 155mm L/52 howitzer has a maximum range of 40km with base-bleed projectiles and up to 70km with rocket-assisted or guided munitions, such as the Bonus or Excalibur.

The Ultima is capable of a prodigous rate of fire: the Mark 1 could deliver 6 rounds per minute and 3 rounds in 10 seconds in burst mode, while while the Mark 2 can fire 10 rounds per minute and 3 rounds in 9 seconds in burst mode, allowing the Ultima to hit and run before counter-battery fire registers on its location. In Multiple-Rounds Simultaneous Impact (MRSI) mode, 7 shells can fired to land simultaneously on a target area.

In combat, Ultima batteries are deployed in a dispersed manner and fight in pairs, firing quick intense bursts before rapidly displacing to avoid counterbattery fire. Linked into the ARES Battlenet, batteries of Ultima SPGs can share targeting data with reconnaissance units, UAVs, forward observers and the Fire Direction Centre in real time, rapidly increasing its reaction speed on the battlefield.