Inspirisan francuskim 2R2M minobacačem, singapurski ST Kinetics je krenuo u razvoj minobacača pod imenom Super Rapid Advaced Mortar System ili kraće SRAMS. Projektni zahtevi su bili:
- mala sila trzanja kako bi mogao bez problema da se postavi na laka vozila
- velika stalna brzina vatre (10 mina/min)
- potpuno automatizovani sistem navigacije i SUV
- gasna kočnica sa difuzorima demaskirajućeg plamena na ustima cevi.
Kao i francuski uzor, puni se elevatorom koji do usta cevi donosi i ubacuje minu. Cev je kalibra 120mm, ali nije olučena već klasična minobacačka. Zbog svega toga potrebna su samo tri člana posade.
TTK:
- kalibar: 120mm
- domet: 9km (13km sa AR minama)
- dužina cevi: 1.800mm
- masa: 1.200kg
- traveza: +/- 28°
- elevacija: 40-80°
- max brzina gađanja: 18 mina/min
UAE Army su 2007. naručili 48 SRAMS samovozna minobacača montirana na vozila RG31 oznake Agrab Mk1 sa ukupno 58 granata 120 mm u dva spremnika.
Vozila su opremljena Denelovim sistemom za upravljanje vatrom Arachinda i STK kasetnom municijom 120 mm ICM P138 sa 25 višenamjenskih bombica.
Da je Emiračanima "leglo" novo naoružanje pokazuje i nova narudžba iz 2011. za dodatna 72 samovozna minobacačka sistema sa oznakom Agrab Mk2.
Vozila su opremljena sistemima za samozaštitu koji čine detektori laserskog zračenja SAAB LEDS 50, Rheinmetall Waffe Munition ROSY-L dvostruki bacači dimnih bombica i montirani automatski bacač granata Mk19.
AGRAB (Scorpion) - kompleks opremljen minobacačem 120mm SRAMS (Super Rapid Advanced Mortar System), montiranim na RG 31 MRAP vozilu.
Vozilo je opremljeno sistemom za rukovanje municijom, koji čine dva karusela sa mogućnošću prihvatanja različitih tipova mina. Borbeni komplet iznosi 46 mina (23 mine u svakom karuselu) sa dvije dodatne kasete spremih mina, kapaciteta do 12 spremnih mina. Vozilo nosi i 1600 metaka kalibra 12,7mm. Planirano je da AGRAB djeluje u formaciji od 4 vozila, a nije isključena mogućnost da djeluje kao samostalna vatrena jednica. Maksimalni domet trenutnom minom procijenjen je na 8.2km. Zahvaljujući kompjuterizovanom SUVu reducirano je vrijeme koje vozilo provodi na vatrenom položaju čime mu je značajno povećana mogućnost preživljavanja.
Cijena 72 AGRAB sistema isporučenih Ujedinjenim Arapskim Emiratima izašla je na 214 miliona dolara (skoro tri miliona po vozilu). Po slovu ugovora, 10 AGRABA sklapa i isporučuje JAR, dok se preostalih 62 sklapa u pogonima u UAE.
Pomoćna pogonska jedinica (Auxiliary Power Unit) fiksirana je za vozilo radi obezbjeđenja napajanja za SRAMS, sistem za upravljanje vatrom i Air Conditioning sistem tokom rada.
Navigation
The AGRAB is equipped with a high performance Ring Laser Gyro Inertial Navigation System, type FIN3110, to navigate accurately to the deployed position.
The FIN3110 is a hybrid navigation system, combining other sources of navigation information, including GPS, to form a composite solution.
High performance navigation is maintained in the presence of intermittent GPS and a reversionary mode is available in the absence of GPS. The system provides accurate pointing to better than Imil.
Fire Control
The Fire Control System is an "all in one" Man Machine Interface/Fire Control Computer with touch screen control. It combines an exceptionally large touch sensitive screen with powerful processing and specialised interfacing all combined within a single unit.
The Fire Control System is capable of computing ballistic data for 120mm High Explosive, Bi-spectral Smoke Screening, Illumination, Infrared Illumination and ICM bombs.
The Arachnida Fire Control System is capable of integrating with most existing higher-level fire control systems to coordinate battery level firepower.
Prime Functions:
Mortar Laying
Algorithmic Ballistic Computations
Mortar Management
Mortar Commander Control
Higher Command Connectivity
Vehicle Navigation
GPS Management
RG31 Utility Vehicle
The RG31 Mk5 Armoured Utility Vehicle (AUV) is a left hand drive 4x4 armoured and mine-protected vehicle with a maximum combat mass of ± 14,000kg. The all-steel welded armour monocoque hull protects the crew against small arms fire and anti-tank mine detonations.
The 3-man crew (Commander, Loader & Driver) will be able to deploy the AGRAB in less than one minute to deliver firepower. The out of action time of the system is ± 30 seconds.
The AGRAB is capable of speeds upto 90km/h on open roads and 40km/h off road. A range of 800km on roads before refuelling is achievable.
Four 81mm Emergency Smoke launchers are mounted on the roof to deliver emergency smoke protection.
Ballistic Protection
Engine Compartment: STANAG (4569A) Level 1
Crew Compartment: STANAG (4569A) Level 2
Horizontal at 30m: 7.62X5lmm NATO BALL, 5.56X45mm NATO BALL, 7.62X39mmAPI
Mine protection
Double Anti-tank any wheel: 14kg TNT
Single Anti-tank under the hull: 7kg TNT
Tank Capacity
Fuel Tank Capacity: 260L
Drinking Water Tank Capacity: 40L
Arachnida Fire Control Characteristics
FIN 3110 Characteristics
Degraded Navigation Accuracy: 90 sec
Full Navigation Accuracy: 10 min
Operating Temperature: -20°C to +65°C
Accuracy Horizontal Position
When GPS available < 10m CEP
Without GPS available: < 25m CEP of distance travelled: <10km 0.25 % CEP for distance travelled: >10km
Vertical Position
When GPS available < 10m CEP
Without GPS available: <15m distance travelled: <10km 0.15 % CEP for distance travelled: >10km
