Ze Scott Brim Gun Gadgetry Galore Thread (ZSBGGG)

Will Future Fire Support Programs Be Enough? Or Do We Need The Battlewagons Back?
MattReloaded
Joined: 29 Nov 2004, 07:40

04 Dec 2017, 23:45 #661

Re: Kongsberg NSM

From Navy Recognition :

Japan Considering JSM & LRASM Next Gen Anti-Ship Missile Procurement
Published: Monday, 04 December 2017 19:07

According to a report by Fuji News Network (FNN)'s "Fuji TV" which aired today, the Japan Self-Defense Forces (自衛隊 Jieitai or JSDF) is considering the procurement of JASSM-ER (Joint Air-to-Surface Standoff Missile - Extended Range) long-range air-to-ground, precision standoff missiles as well as Joint Strike Missile (JSM) and LRASM (Long Range Anti Ship Missile) next generation anti-ship missiles.

While the procurement of Kongsberg's JSM was previously mentionned in the Japanese press (Yomiuri newspaper first mentionned it in June this year), it is the first time that LRASM is mentionned. LRASM just entered mass production this summer and it is unlikely to be available for export any time soon. The missiles would be intended to be fitted on the Japan Air Self-Defense Force (JASDF) F-15J and F-2 fighters. Japan is set to mass produce its own next gen anti-ship missile, the XASM-3, next year. But XASM-3 has a shorter range compared to JSM and LRASM and lacks land attack capability.



LRASM Anti-Ship Missile moments before impacting a target ship.

About LRASM

The AGM-158C LRASM was designed by Lockheed Martin (in collaboration with DARPA) to detect and destroy specific targets within groups of ships by employing advanced technologies that reduce dependence on intelligence, surveillance and reconnaissance platforms, network links and GPS navigation in electronic warfare environments. LRASM will play a significant role in ensuring military access to operate in open ocean/blue waters, owing to its enhanced ability to discriminate and conduct tactical engagements from extended ranges.

LRASM is a precision-guided, anti-ship standoff missile based on the successful Joint Air-to-Surface Standoff Missile - Extended Range (JASSM-ER). It is designed to meet the needs of U.S. Navy and Air Force warfighters in contested environments. The air-launched variant provides an early operational capability for the U.S. Navy’s offensive anti-surface warfare Increment I requirement to be integrated onboard the U.S. Air Force’s B-1B in 2018 and on the U.S. Navy’s F/A-18E/F Super Hornet in 2019.


JSM is the 5th generation long-range precision strike missile that will be integrated for internal carriage on the F-35

About JSM

Designed by Kongsberg, JSM is the 5th generation long-range precision strike missile that will be integrated for internal carriage on the F-35. Using a combination of advanced materials, ability to fly low, while following the terrain and using advanced passive seekers, the missile is extremely difficult to detect and stop even for the most advanced countermeasures and defence systems.

The JSM is in development for the Norwegian Armed Forces and will complete the qualification program in 2018. JSM will have unmatched operational capabilities enabling the F-35 to fight well-defended targets across long distances. The missile will be integrated on the F-35A but can also be integrated on other types of aircraft. KONGSBERG and Raytheon are partnered to provide the JSM for US and international customers.

BAE Systems Australia is developing a new RF-seeker sensor. It will enable JSM to locate targets on the basis of their electronic signature. This will further strengthen the capabilities of JSM for the most challenging scenarios in a modern battlefield.


Screenshot from "Fuji TV" report on JSDF interest to procure JSM, JASSM-ER and LRASM. Picture via Twitter user @itackey


Screenshot from "Fuji TV" report on JSDF interest to procure JSM, JASSM-ER and LRASM. Picture via Twitter user @obiekt_JP
"We need to get closer to that Dane mentality" - Rear Admiral Bryant Fuller, NAVSEA Chief Engineer, March 2015 ASNE Day.
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MattReloaded
Joined: 29 Nov 2004, 07:40

06 Dec 2017, 23:38 #662

From Naval-Technology :

Oerlikon Seaguard® Biax and Triax: Naval Target Tracking and Fire Control Systems
4 December 2017



Oerlikon Seaguard® Biax and Triax are versatile and highly effective naval target tracking systems. Based either on a 2-axis (Biax) or 3-axis (Triax) mount design, they are multi-purpose trackers suitable for all weather conditions equipped with proven radar technology to counter the diverse range of above-water conventional and asymmetric threats that exist today, including highly agile, anti-ship missiles.

Both tracking systems provide multi-sensor tracking, using radar and TV camera (TVC) in basic configuration and can be extended anytime with an infrared camera (FLIR) and a laser rangefinder (LRF). Using miniaturised power technology, the radar hardware fits behind the antenna without sacrificing performance and improving reliability.

The Oerlikon Seaguard Triax is the only market-available 3-axis target tracking system today. Through the introduction of a third axis between azimuth and elevation, the radar and E/O component head can be additionally rolled. This unique construction allows it to track targets beyond zenith relative to the ship’s deck even at roll and pitch movements. With its superior velocity and acceleration capabilities, it is designed to specifically deal with highly agile, anti-ship missiles.
  • High dynamics for rapid reaction and engagement of high-speed targets
  • Easy to install with reduced effort / minimal below deck equipment
  • High MTBF requires less spare part holdings on-board
  • Lower life cycle cost
  • Very compact design with integration of the complete radar system behind the antenna
  • Two parallel operating transmitters with full redundancy
  • Pre-action calibration (PAC) and in-action correction (IAC) functions are provided.
"We need to get closer to that Dane mentality" - Rear Admiral Bryant Fuller, NAVSEA Chief Engineer, March 2015 ASNE Day.
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MattReloaded
Joined: 29 Nov 2004, 07:40

07 Dec 2017, 01:11 #663

From Defense News :

Leonardo works on 'Europe's first fully digital' radar
By: Tom Kington    
6 hours ago


Italy’s Leonardo is edging closer to producing a fully digital, active electronically scanned array radar — the L-band Kronos Power Shield — which will be the only one of its kind in Europe according to the firm — with initial components now being manufactured. Seen in this photo is Leonardo's Kronos Grand Naval, which is a multifunctional radar used as the main radar for the Principal Anti-Air Missile System. (Leonardo)

ROME — Italy’s Leonardo is edging closer to producing a fully digital, active electronically scanned array radar — the only one of its kind in Europe according to the firm — with initial components now being manufactured.

The L-band Kronos Power Shield radar is being built for the Italian Navy’s new Landing Helicopter Dock vessel.

“We are evolving the new Leonardo AESA radar into a fully digital system, which allows us to manage a bigger amount of data in less time, so enhancing the radar performance,” said Renzo Tosini, naval and Air Defence line of business director at Leonardo’s Land and Naval Defence Electronics division.

Active Electronically Scanned Array radars use grids of small Transmit Receive Modules, each generating an individual radar beam which can be combined to create a larger, composite, directed radar beam.

With each TRM containing its own power source, the break down of one TRM barely affects overall performance, unlike traditional radars where a sole power source behind the antenna powered the entire radar, meaning total breakdown if the power source was lost.

The key novelty in Leonardo’s new radar is that the transmitting and receiving signal is already digital at the level of the single radiating element.

“The new L band radar is based on ‘digital’ TRMs hosted into so-called ‘Digital Active Tile’ blocks,” said Tosini.

“Going fully digital means the radar transceiver is thinner and allows the radar system to process more information faster,” he added.

The roughly 40 square meter rotating radar will offer an instrumental extended surveillance range of 1,500 - 2,000 km.

Italy’s Fincantieri started work in July on Italy’s new 1.1 billion euro LHD, a 25 knot, 200 metre long vessel that will enter service in around 2022.

The multi-functional radar will equip Italy’s LHD and the Landing Platform Dock that Fincantieri will build for Qatar, said Tosini.

The new technology is being developed as Fincantieri enters talks to jointly build warships with France’s Naval Group. 

Politicians in Italy have raised fears that the systems, like radar, which Leonardo has long supplied to Fincantieri ships might be squeezed out of the joint program by kit supplied by France’s Thales.

Leonardo is also offering flat panel C and X band radars known as Kronos which will be used on Italy’s new multi-purpose PPA frigates.
"We need to get closer to that Dane mentality" - Rear Admiral Bryant Fuller, NAVSEA Chief Engineer, March 2015 ASNE Day.
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MattReloaded
Joined: 29 Nov 2004, 07:40

08 Dec 2017, 17:35 #664

Re: EMRG

From Army Recognition :

French-German EM Railgun Project Unveiled at DGA Innovation Event
POSTED ON FRIDAY, 08 DECEMBER 2017 12:31

A French-German electromagnetic (EM) railgun project was unveiled during the 2017 "DGA Innovations" event hosted by the French defense procurement agency (DGA). Launched by the ISL (French-German Research Institute of Saint-Louis) in 1987, the project was mostly kept under cover until now.


Electromagnetic (EM) Railgun scale model showcased by ISL during the DGA Innovations 2017 event.

A full scale EM railgun prototype dubbed "Pegasus" was built in 1997 at ISL facility in Eastern France, close to the German border. At the 2017 DGA innovation event, ISL was showcasing for the first time a fully function, truck-mounted EM railgun and was even demonstrating the firing of 5x5mm projectiles, live during the show. The tiny projectiles have muzzle velocity of 120 meters per seconds.

The 10 MJ PEGASUS is being used to advance the launcher and armature technology towards a reliable half-scale long range artillery system. Recent results include the successful launch of in-house developed launch packages (mass range is kg) for hypervelocity (> 2500 m/s) projectile acceleration. The ISL launch technology sets worldwide accepted standards with regard to the efficiency of the conversion of electric energy into kinetic energy (> 35%). ISL’s railgun facilities are unique in Europe.

The military applications for this technology are many:
- Long range artillery (in excess of 200 Km)
- Anti-surface (naval)
- Increased penetration thanks to high impact speed
- Anti air and anti missile defense (including against hypersonic threats)
- Simultaneous impacts thanks via rate of fire and velocity control
- No powder (no prytechnic risks)



The fully functioning scale model canon can launch 5x5 mm projectiles at a speed of 120 meters per second.

This new technology brings the capability to fire high speed projectiles (Mach 9 speed / 3 Km per second) while increasing the range five-fold with a better impact efficiency. Ultimately, the technology should be able to replace cruise missiles at a fraction of the cost.

ISL is working on ultra compact power supplies capable to deliver 1 GW in form factor 10 times smaller. To achieve this, ISL is working with a number of new technologies such as magnetic power supplies, ultra rapid switches and supraconductors: Below -200°C, some materials have no resistance to power. They may conduct electricty without any loss.

Industry partners in the project include: Naval Group, ISL, Nexter Systems, Nexter Munitions and MBDA. A Naval Group concept ship (scale model) fitted with EM Railguns is set to be unveiled at Euronaval 2018. DGA and ISL believe that the first pratical application for the technology would indeed be in the naval field.
"We need to get closer to that Dane mentality" - Rear Admiral Bryant Fuller, NAVSEA Chief Engineer, March 2015 ASNE Day.
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MattReloaded
Joined: 29 Nov 2004, 07:40

08 Dec 2017, 17:58 #665

Re: EMRG

From Navy Recognition :

France Working on Electromagnetic Railgun for Naval Application
Published: Friday, 08 December 2017 14:52

A French-German electromagnetic (EM) railgun project was unveiled during the 2017 "DGA Innovations" event hosted by the French defense procurement agency (DGA) yesterday. Launched by the ISL (French-German Research Institute of Saint-Louis) in 1987, the project was mostly kept under cover until now.


A full scale EM railgun prototype dubbed "Pegasus" was built in 1997 at ISL facility in Eastern France, close to the German border. ISL picture.

Industry partners in the project include: Naval Group, ISL, Nexter Systems, Nexter Munitions and MBDA. A Naval Group concept ship (scale model) fitted with EM Railguns is set to be unveiled at Euronaval 2018. DGA and ISL believe that the first practical application for the technology would indeed be in the naval field.

It is not the first time that we report on the French Navy (Marine Nationale) interest for this technology. You may recall that in 2015 a French Navy and DGA delegation visited the EM railgun at Naval Surface Warfare Center Dahlgren Division (NSWCDD) in the USA.

Naval Surface Warfare Center Dahlgren Division is the location where the US Navy and Office of Naval Research (ONR) are currently testing EM railgun technology.
"We need to get closer to that Dane mentality" - Rear Admiral Bryant Fuller, NAVSEA Chief Engineer, March 2015 ASNE Day.
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OldNick
Joined: 18 Oct 2014, 18:37

08 Dec 2017, 19:06 #666

USNI -Report to Congress on Navy Laser, Railgun and Hypervelocity Projectiles
Re: CRS Navy Lasers, Railgun, and Hypervelocity Projectile: Background and Issues for Congress Ronald O'Rourke Specialist in Naval Affairs November 30, 2017 report.

In comments
"Battlestattions asked
What exactly (besides a hole) will this gun/round do? 35 pounds of metal doing Mach 5.8; I realize different ground (sand verses rock) will make a difference, but just how big of a hole would that round make?
 
Answer by bearcla
-> 35 pounds of metal doing Mach 5.8 ... how big of a hole would that round make?
Not too big. 
First, the useful payload (tungsten rod or frags) is actually not 35 pounds, but only 15 lbs, according to the HVP datasheet at the BAE website (total mass: 40 lbs, flight mass: 28 lbs, payload: 15 lbs).
Second, Mach 5.8 (=2,000 m/s) is just a muzzle velocity which is quickly decreasing over the flight because of air drug (which is quadratic in the velocity).
After a flight over 100 nautical miles, the terminal velocity of the railgun's HVP will decrease from 2,000 - 2,500 m/s to just about 700 - 800 m/s. The terminal kinetic energy of the useful payload (15 lbs) will be just about 1.7 - 2.2 MJ. 
For comparison, the M362A1 mortar round contains 2.1 pounds of explosives (composition B), which delivers about ~5 MJ of blast energy at the target."
 
https://news.usni.org/2017/12/05/report ... jectiles-2
 
So the question is of what operational benefit is the railgun or the AGS/155m/Mk45/5 inch with the HVP.
If used for shore bombardment it's a joke, the standard army 155mm M795 high fragmentation shell weighs 107 lb with 23.8 lb of TNT. Accuracy at 100nm will be problematical as GPS is easily jammed and/or spoofed. The barrels for the cannon will be worn out after a 100 + rounds as with the M1 Abrams 120mm gun
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MattReloaded
Joined: 29 Nov 2004, 07:40

08 Dec 2017, 19:25 #667

OldNick wrote: After a flight over 100 nautical miles, the terminal velocity of the railgun's HVP will decrease from 2,000 - 2,500 m/s to just about 700 - 800 m/s. The terminal kinetic energy of the useful payload (15 lbs) will be just about 1.7 - 2.2 MJ.
Terminal velocity is likely to be much more than 700-800 m/s.

"We need to get closer to that Dane mentality" - Rear Admiral Bryant Fuller, NAVSEA Chief Engineer, March 2015 ASNE Day.
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OldNick
Joined: 18 Oct 2014, 18:37

08 Dec 2017, 21:06 #668

MattReloaded wrote:
OldNick wrote: After a flight over 100 nautical miles, the terminal velocity of the railgun's HVP will decrease from 2,000 - 2,500 m/s to just about 700 - 800 m/s. The terminal kinetic energy of the useful payload (15 lbs) will be just about 1.7 - 2.2 MJ.
Terminal velocity is likely to be much more than 700-800 m/s.

A cartoon image with as much connection to reality. 
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cabear
Joined: 29 Apr 2014, 01:39

08 Dec 2017, 21:36 #669

MattReloaded wrote:
OldNick wrote: After a flight over 100 nautical miles, the terminal velocity of the railgun's HVP will decrease from 2,000 - 2,500 m/s to just about 700 - 800 m/s. The terminal kinetic energy of the useful payload (15 lbs) will be just about 1.7 - 2.2 MJ.
Terminal velocity is likely to be much more than 700-800 m/s.
That was my post at USNI :)  I did use the following parameters for HVP
total mass w/sabot: 40 lbs, 
flight mass: m = 28 lbs (12.7 kg)
payload: 15 lbs

I did estimate the projectile's diameter D to be 2.5", which is slightly smaller than your estimate of 3". Thus, the ballistic coefficient C=m/D^2 would be about C=3150 kg/m^2 for D=2.5", and 2187 kg/m^2 for D=3". The exact value of air drag coefficient Cd is unknown, but it should be close to one for hypersonic (M>5) flight: Cd ~ 0.22. Here, I do assume "zero yaw drag" approximation, so the real drag could be even greater.

For ballistic calculations, I did use a simplified model of Earth's atmosphere which decreases linearly in density from 0 to 25 km.

Here are the results for different muzzle velocities V0 (at the elevation angle of 45° on flat surface):
V0 = 2500 m/s, Vterm = 840 m/s, Range = 200 km (108 nm)
V0 = 2000 m/s, Vterm = 705 m/s, Range = 132 km (71.3 nm)
V0 = 1500 m/s, Vterm = 575 m/s, Range =  75 km (40.5 nm)

Note that the real air drag force could be even greater because of larger diameter (D=3" ?) and projectile's yaw.
Last edited by cabear on 09 Dec 2017, 03:44, edited 8 times in total.
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MattReloaded
Joined: 29 Nov 2004, 07:40

08 Dec 2017, 21:40 #670

OldNick wrote:
MattReloaded wrote:
OldNick wrote: After a flight over 100 nautical miles, the terminal velocity of the railgun's HVP will decrease from 2,000 - 2,500 m/s to just about 700 - 800 m/s. The terminal kinetic energy of the useful payload (15 lbs) will be just about 1.7 - 2.2 MJ.
Terminal velocity is likely to be much more than 700-800 m/s.

A cartoon image with as much connection to reality. 
A cartoon image...
"We need to get closer to that Dane mentality" - Rear Admiral Bryant Fuller, NAVSEA Chief Engineer, March 2015 ASNE Day.
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