₦airaland Forum

Reutech develops ship navigation radar receiver

Reutech Radar has developed a passive ship navigation radar receiver that can detect ‘dark’ vessels that have switched off their AIS transponders, but not their navigation radar.

Anthony Green, Specialist: Systems and Solutions at Reutech Radar Systems, told defenceWeb that the RIS 100 Navigation Radar Intercept Sensor (NRIS) came about from the fact that although vessels may switch off their Automatic Identification System (AIS) transponders, they are highly unlikely to switch off their navigation radars, as this would constitute a major safety hazard.

When vessels deliberately switch off their AIS transponders, it is highly likely they are doing something illegal, such as illegally fishing, smuggling, dumping waste oil at sea, engaging in piracy etc. Sometimes vessels turn off their AIS for good reason, such as trying to avoid pirates in dangerous waters like the Gulf of Guinea, but such actions are in the minority.

“Going dark” is especially common among trawlers engaged in transshipment, or the illegal transfer of fish from one vessel to another. Illegal, unreported and unregulated (IUU) fishing costs West African nations alone $2.3 billion each year, according to the United Nations, but is a worldwide problem. It is estimated that only 20% of Chinese fishing vessels of West Africa switch on their AIS.

AIS receivers have been in use since 2008 and were meant to support safe navigation and collision avoidance by automatically transferring information about a vessel to other ships. AIS has increasingly has been used in fisheries enforcement.

One method of detecting dark ships is to use radar, but that requires an active radar signal, which could in theory be detected by the target vessel. Reutech’s NRIS is passive, so it is highly discreet. Green told defenceWeb that Reutech’s system is the only such solution in the world.

One NRIS system has been installed at the Slangkop lighthouse in Kommetjie for trials. The system has already received its first order, from a southeast Asian customer, and according to Green has been very well received.

The RIS 100 NRIS is a Radar Electronic Support Measures (R-ESM) receiver that covers the X-band marine radar frequency (S-band will be added at a later stage) and provides a bearing line (strobe) on the emitting radar. “The accuracies delivered by the sensor allow for correlation between RIS 100 strobes, Automatic Identification System reports and, if available, radar tracks to identify commercial shipping that have not activated their AIS transmitters,” Reutech explained.

The sensor may also provide early indication of a vessel approaching from over the horizon since the mast-head navigation radar may be detected before a vessel’s own radar detects the hull of the arriving vessel.

Djibouti Navy FCS 5009 vessels built by Damen Shipyards Cape Town in 2019.
They each have two Damen 1102 FRP interceptors that can be launched and recovered using davits. Armaments-wise, they are outfitted with Reutech Sea Rogue weaponry; a system that includes a RWS 20 mm cannon forward of the wheelhouse and two 12.7mm guns fitted port and starboard of the wheelhouse, respectively.

QuietMynd:
U can't comment and like thesame post on nairaland buddy.

You under-estimate the desperation of people who register multiple usernames, mate!

RDM nets more NATO 40 mm ammunition contracts

Rheinmetall Denel Munition (RDM) continues to do well with the export of its 40 mm ammunition range, and has just announced two contracts with NATO customers in Europe.

The company said the total value of these contracts is over €30 million. In December 2022, one of the NATO customers contracted Rheinmetall to supply up to 300 000 rounds of 40 mm ammunition, including LV (low velocity) and HV (high velocity) variants. Under this framework contract, this customer has already issued a first call-off of around 75 000 cartridges.

Under a separate contract, the same customer will be taking delivery of some 45 000 programmable cartridges in 40 mm x 53 HV HE-T ABM (High velocity High Explosive-Tracer Airburst Munition) calibre in the first half of 2024.

Another European NATO customer will be supplied with around 10 000 rounds of the same type of ammunition, which is mainly used for combating drones. Delivery will take place starting in mid-2023.

Other recent 40 mm contracts were revealed in July last year, for two customers in Asia. Rheinmetall said that one of the orders was from a new customer that was getting 400 000 rounds of 40 mm low velocity ammunition, to be delivered by December 2022. In the other case, an existing customer ordered 100 000 rounds of medium velocity grenades to be delivered between December 2022 and February 2023.

The Asian orders come on the heels of a large contract for 40 mm grenades signed recently with Spain. RDM will supply 40×53 mm high velocity grenades for the Spanish military’s SB Lag-40 and Mk 19 grenade launchers. Deliveries are over four years, starting in 2022.

Rheinmetall Denel Munition is a well-known international supplier of 40 mm ammunition and manufactures the full range of Low Velocity (40×46 mm), Medium Velocity (40×51 mm) and High Velocity (40×53 mm) 40 mm ammunition, and has proven compatibility in a wide range of different 40 mm weapons. The 40 mm Medium Velocity rounds are capable of ranges up to 800 meters from shoulder-fired grenade launchers. Rheinmetall claims this is 200 metres more than comparable products on the market.

The 40 mm Low Velocity ammunition has a range of up to 400 metres. Both types of ammunition use a High Explosive Dual Purpose projectile. This combines fragmentation and shaped charge, which has a high penetrating power. It can be used against bunkers and armoured targets and can penetrate 50 mm rolled homogenous armour (RHA).

GreenandGold:
Once again, South African arty shells are killing Russians

I suppose it was only a matter of time. A PzH 2000 in Ukraine carrying Rheinmetall Denel Munition's Assegai 155mm arty rounds!

GreenandGold:
***Agububu opens ChatGTP***

Agububu: Type me a 500-word essay that makes no sense

ChatGTP:

You had me almost spilling my coffee! And now my dog is giving me funny looks!

I knew the calm couldn't last!

GreenandGold:
That sounds very......classicky

So after this, do you guys go wine tasting?

The wine tasting is before the 7pm start of the Festival's performances!

GreenandGold:
but do you have 7 waterfalls?

GreenandGold:
What's more glorious than the Big 5, the Drankesburg escarpment, the Lowveld and 7 waterfalls

The Maynardville Open Air Festival, for one. Whose opening I attended last night, for the Cape Town Philharmonic Orchestra's performance of Mendelssohn's A Midsummer Night's Dream!

GreenandGold:
What vehicle is that?

Ha! Same question I wanted to ask!

Nemesis4you:
Namica guided missile tank destroyer

6 loaded IIR fire & forget Nag Atgms
6 Nag Atgms carried internally
1 RCWS with 7.62 mm MG
6 smoke grenade launchers
2 EO pods

When did they change the missile turret from the below?

Global Aviator on the Milkor 380 UCAV.

Didn't know Milkor had expanded their vehicle range!

GreenandGold:
.....there needs to be compensation

Being in the glorious Cape is more than adequate compensation! We'll give it back after fire season. Promise!

GreenandGold:
Fire season in Cape Town.... yeeer

We've expropriated your FireHawk!

The City of Johannesburg is owed ZAR406 000 ($23 756) (₦10,880,059.24) in unpaid electricity bills by the Nigerian Consulate.
Unless the Consulate gives them iron-clad assurances of when they intend settling the bill, power will be switched off.

Amazing job from the Working on Fire guys. Strong winds and a fire on the mountain is a scary sight.
Took one hour for 5 helicopters to bring this one under control.

...last.

...4...

...3...

...2...

Meanwhile, in Mozambique...

GreenandGold:
The LM13 by OTT Technologies in Pretoria

Do you know how many Saudi Arabia bought?

...fin.

Paramount Group busy with customer deliveries of its new vehicle, the Maatla Light Protected Vehicle (LPV).
Of the 2 African countries that ordered 50 when the vehicle was launched at AAD, we now know that DRC is one.