ASV-12 Non-Line of Sight Self-Propelled Howitzer- Adversity Technologies -
The ASV-12 was designed to be an advanced, modern self-propelled howitzer to give the technological and logistical advantage back to artillery systems. The ASV-12 fires rocket-assisted and GPS-guided shells designed to have independent guidance and assessment of a combat situation.
The complement of only 2 (commander and driver) testifies to the length of computer systems used to load the howitzer's 155mm rounds. Each round is assessed, targeted, and fired ultimately by the driver, with coordinates obtained by third-party devices or by computer logistics and aiming.Raw Statblock - ASV-12 NLOS Self-Propelled Howitzer
- Weight: 20 tons
- Length: 11 metres
- Width: 3.5 metres
- Height: 4 metres
- Crew: 2 or 3
- Optional technician (long operations for manual loading)
- Primary armament: 155mm rifled howitzer w/ 39 caliber
- Secondary armament: 1x 7.7x56mmR (.303 British) flexible-mount machine gun
- Rate of fire: 10 rounds per minute
- Loaded rounds: 30
- Conventional shell range: 30 km
- RGP shell range: 40 km
- Barrel length: 6.025 m
- Armor: 14.55 mm aluminum
- Suspension: Torsion bar
- Operational range: 500 km
- Engine: 558 metric horsepower hybrid-electric
- Max speed:
- Overall: 50 km/h
- Terrain: 35 km/h
-Ground clearance: .5 m
-Max gradient: 60°
-Vertical obstacle: 0.75 m
-Trench crossing: 255 cm
-Fording depth: 1.5 m
- Unit cost: $3.7 million
The 155mm rifled howitzer of the ASV-12 is 7 metres long, and can be rotated 360 degrees on an armored turret, and angled up 60 degrees, or kept in default position for greater forward performance.
The howitzer fires 155mm rocket assisted and GPS-guided shells that actively seek a target and compensate for conditions specified by the environment and the nature of the coordinates as specified by the onboard computer.
Conventional shells can also be fired by the system, without guidance. In this way, the shell may be less accurate in flight, but can be fired with direction by computer operation.Hybrid-electric engine
The hybrid-electric engine is powered by electric motors which assist in powering an internal combustion engine, in a similar fashion to other HEV engine systems. This design improves both range and fuel economy, allowing the ASV-12 to be logistically self-supported, quieter, and more versatile to a combat environment.Shells
The ASV-12 can fire both guided and conventional shells depending on the degree of accuracy and risk involved in the target. For more general targets, conventional incendiary and high-explosive HEFRAG shells firing out of a 39-caliber barrel, can fire at calculated angles via computer systems, or aimed and loaded by manual override via interrupted screw.
GPS-guided rocket-assisted projectiles can also be fired. The 39 caliber shells are high-explosive shells that are designed for guided impact and ultimate accuracy. They can be coordinated both in-ASV and in-flight for MRSI, or Multiple Rounds Simultaneous Impact, wherein calculated shells will hit a specified target accurately and at the same time from multiple arcs and speeds. Up to six rounds can be fired under MRSI capability.Computer systems
The primary computer systems of the ASV-12 receive and interpret coordinates and data from third-party directions (such as from UAV drones or networked input), or from advanced GPS systems onboard. Other functions include the application of advanced firing procedures that angle and direct the shell to find it's target.
Multiple rounds can also be timed and calculated between each firing (up to 10 rounds per minute) to allow for more accurate and thorough tactical use of the self-propelled howitzer.Secondary armament
The standard machine gun munition is the 7.7 mm .303 British round, which was used in the machine gun acting as the secondary armament of the ASV-12 system. The machine gun sits on a 360 degree rotating device with added side armor designed to protect the gunner from frontal exchange fire, and allow for more and faster net return fire from the system for close-range defense.Recoil and breech
The ASV-12 has a weight offset mechanism located at the rear to offset both the weight and the recoil action of the 7m howitzer. The mechanism also sends the force of recoil into the ground rather than in reverse to cause the vehicle to shift. Additionally, slots in the barrel transmit some of the blast outward the front of the howitzer's arm, providing for less recoil action.
The shell of the ASV-12 is fed through a Welin stepped interrupted screw breech, which is fed automatically rather than by a gunner. The 30 rounds are loaded and fired by electric compressor-powered robotic mechanisms which are high-endurance, allowing for a design maximum of 12 rounds a minute, although the set maximum of the ASV-12 is 10 rounds a minute for practicality.
This high-rate of fire design is partly accomplished through computer, but is also accomplished through an innovative design of the loading mechanism, mainly accomplished due to there only being 30 loaded rounds.
Of course, for more enduring missions, a lower rate of fire is possible and more commonly used.Tracks and range
The system of tracks is located .5 m from the ground, with 80 shoes per track. The track contacts the ground farther to the rear for 350 centimetres. The tracks pivot to provide maximum maneuverability and near instant turning control reaction.
The ASV-12 has a fording depth limit of 1.5 m. Attachments of rubber pads can improve overall speed and traction while fording. The ASV-12 can cross trenches up to 722 cm, and vertical obstacles up to 75 cm.Armor and survivability
The ASV-12 is protected by armor capable of protecting against 14.5 mm small arms fire, made of a lightweight grade magnesium alloy and assembled by welding, a common armor choice of other self-propelled howitzers. The shaping of the armor is curved along with the body to allow for maximum deflection of small arms fire, the expected encounter of the behind-front-lines ASV-12.
There is an interruption of the moving tracks at the front of the ASV-12, which was meant to provide protection from small-grade explosive devices. An attachable arm can also 'sift' ahead of the ASV-12 to detonate explosive devices before they reach the sensitive tracks of the ASV-12. This attachment point can be removed for maximum maneuverability, and is often only a feature used on straight roads.Logistics
The ASV-12 can transition from road driving to fire readiness in an estimated 45 seconds, compared to the M109's 60 seconds. This is largely due to computer optimized firing and tracking, as well as consistency. However, the ASV-12 does not compromise on accuracy, given the lesser range of human error due to a mostly computer aiming and firing infrastructure.
The ASV-12 weighs 20 tons, making it optimal for carriage aboard heavy-lift transport aircraft for easier and more mobile delivery. Special attachment points along the sides of the ASV-12 allow it to be more structurally secure aboard such flights.Fire suppression systems
The onboard fire suppression system is modeled after the Halon fire-suppression system of the M109, which can suppress fires in an estimated quarter of a second. Performance of the ASV-12's fire suppression system is estimated statistically at a mean of similar proportions (.27 of a second vs .25 of a second), and is likely to improve as the data becomes more theoretical after service use.Cost and operation
With it's automatic equipment, the system cost of the ASV-12 totals around $3.7 million, with an estimated $3.2 million final production cost. The ASV-12's maintenance costs are primarily constructed around the maintenance of the gun turret, and the computer systems, which is optimized to be as infrequent as possible whilst still ensuring safety. Structurally, the ASV-12 has a mean time between failure of 100 hours, and a mean time to repair of 4 hours, being constructed of around 1,400 parts.