ST Kinetics, the land systems and speciality vehicles arm of Singapore Technologies Engineering (ST Engineering), is expanding its portfolio of 40 mm ammunition with the counter-unmanned aircraft system (C-UAS) and the door-breaching grenades.
According to company specifications, the C-UAS grenade – which has an overall length of 125 mm and weight of 243 g – has been in development since 2017 and is specifically designed to defeat small, commercially available, multirotor unmanned aerial vehicles (UAVs).
A typical package comprises the 40 mm C-UAS grenade and a rail-mounted programming unit, with the latter measuring 95 mm long, 45 mm wide, 60 mm tall, and weighing 350 g. The warhead carries a payload streamer, which is delivered into the flight path of a UAV and disable its propellers, forcing it to crash.
The programming unit, which is mounted via a MIL-STD 1913 accessory rail on a rifle or grenade launcher’s 3 o’clock position, features an integral laser rangefinder with a range of 500 m.
The C-UAS grenade is designed to compatible with a wide range of grenade launchers on the market, including the STK 40GL, HK69A1, M203, M79, AG36, MK13, M32A1, Milkor and Rippel Effect MGL. Launched at a muzzle velocity of 100 m/s, the round has a stated maximum range of 600 m, although Jane’s understands from an ST Kinetics spokesperson that the typical engagement range is around 200-300 m given the potential challenges of targeting small UAVs at further distances.
“[To increase success] we can program grenade bursts in three locations – what we call the ‘string of pearls’ – increase the coverage,” a company spokesperson explained to Jane’s . “For example, if a target is 100 m away we can set the rounds to burst at intervals of 90 m, 100 m, and 110 m to saturate a wide area with streamers.”
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