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Sturgeon's House

CV-90, why so much love ?


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Diagrams from student theses:


1. Compartment for equipment and diesel heater.
2. Compartments for equipment and oil cans.
3. Tray for equipment.
4. Air passage from engine compartment and exhaust pipe entrance.
5. Air passage between exhaust pipe and fan chamber, with wading hatch.
6. Main fan, exhaust air.
7. Input Scavenger channel.
8. AC system.


Figure 1.2. The band shelf in cross section from the side.


Kylare = Cooler

4.2 Exhaust and cooling systems
The exhaust system enters the belt shelf adjacent to the engine compartment, then the exhaust pipes follow
the tape shelf along a channel all the way back where it finally opens. The exhaust pipes have a temperature
at about 550 ° C and is covered with insulation. The temperature in the estuary is about 500 ° C.
The operating system for air cooling in the belt shelf is a fan at the back that draws air away
the engine compartment and through the entire belt rack. The flow is currently about 230 l / s.
The engine cooling is a system with cooling water that after passing out of the engine passes along
the tape shelf. The temperature of the cooling water is approximately 100 ° C.
The engine air cooling system is located in the front of the engine compartment and the air intake is on top
the hood. When the air is filtered, debris and particles that must be blown away, the fan gets stuck
who performs that work is called Scavenger and blows out the unclean air on the right side of
the carriage.


Final drive cooling


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It looks like the lawsuit between Rheinmetall Norway and the Norwegian state has been called off:



Rheinmetall Norway and Norwegian Defense Materiel Agency (NDMA) have issued a joint statement, stating that they have succeeded in reaching an agreement over the dispute regarding the delivery of the sensor system Vingtaqs II to the armed forces' CV90 reconnaissance vehicles.


- The solution brought about an amicable conclusion to the case. Chief of Defense Materiel Land Capacities, Brigadier General Ivar Halset and CEO Thomas Berge Nielsen of Rheinmetall Norway are both pleased to be able to look to the future. Beyond that, the parties have no further comment, they write in the message.


The settlement, which also includes legal costs, was agreed upon on August 28.




Would be neat to know more about this settlement, but that's all there is, for now at least.

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Estonian CV90s, including one that is based on a Mk I hull acquired from Norway. No clue about the role of this particular vehicle, but whatever it is, it’s probably intended to be an interim solution until a proper rebuild can be carried out (I mean, there aren't any periscopes on that MG post and the rear cupola doesn't have one in the front centre, so forward visibility must be very bad for the commander when buttoned up…). As to when that might happen, I do not know. Estonia did launch a tender on the reconstruction of the Mk I hulls back in August 2017, but in January of last year, it was announced that they had rejected all of the offers.



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More info about the Dutch CV90 upgrade program. It looks pretty good to me, though the scope of the project has been reduced from 141 to 122 vehicles, meaning that another 19 CV9035NL will likely be up for sale in the near future. Estonia will probably be very interested in getting those since they  already operate 44 CV9035NL.


On 11/1/2020 at 2:46 AM, Newtonk said:

and a funky digital camo to go with it...


The vehicle in the photo is BAE Systems Hägglunds' CV90 MkIV demonstrator. Upgraded Dutch CV90s will not necessarily receive such a paintjob.

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Switzerland has decided to fund a lifetime extension program for the SPz 2000 (CV9030 Mk. 2):



Life Extension Programme for Swiss CV90

The Swiss defence procurement agency, armasuisse, has contracted BAE Systems to conduct a life-extension programme for the Swiss Army’s CV9030 fleet, the company announced on 18 November.

The contract covering the 186 vehicles, known as Schützenpanzer 2000 in Switzerland, where it has been in service since the delivery programme 2002-2005 was completed, follows close cooperation between BAE Systems, and the Swiss government on an initial obsolescence study. This was followed by development of a prototype, an extensive testing regime in Switzerland and Sweden, and alterations in readiness for serial production. The aim of the programme is to keep the vehicles in service until 2040 and to significantly improve their capabilities in certain areas.

The improvements are mainly based on identified obsolescence issues in optical, electrical and electronic components. They also include the installation of active damping technology, which reduces wear and tear, minimizes through-life repair costs, improves speed in difficult terrain and enhances ride comfort. A new improved electronics architecture will support the vehicle’s adaptation to future technology growth. The vehicles will also be fitted with a 360° surveillance system, improving situational awareness, combat effectiveness, and survivability to enable safer route planning and more rapid targeting.

BAE Systems Hägglunds, the original manufacturer of the CV90, has already worked closely with Swiss industry to meet the industrial cooperation requirements. The programme will involve multiple suppliers based across all regions of Switzerland. Selected companies will produce items such as the next generation of electronic boxes for the CV90s, electrical cables, and mechanical components. One of these suppliers is RUAG AG, which will provide a new auxiliary power unit in collaboration with BAE Systems. Through its role as the Material Competence Center (Materialkompetenzzentrum), RUAG is fully involved in securing Switzerland’s autonomy and operational readiness, increasing defence capabilities, self-sufficiency, and security of supply, while preserving high-skilled jobs and in-country capability.

This successful cooperation leaves us well positioned to start the production and delivery phase of this life-extension program. We are looking forward to delivering a technologically future-proofed platform together with Swiss industry,” commented Mattias Strandberg, Regional Director for BAE Systems Hägglunds.

In addition to Switzerland, Denmark, Estonia, Finland, Norway, Sweden and the Netherlands operate variants of the CV90. With close to 1,300 vehicles in service, it is combat-proven and designed to accommodate future growth to meet evolving missions.


Source: https://www.monch.com/mpg/news/land/7792-life-extension-programme-for-swiss-cv90.html

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Defense signs an extensive MidLife Update contract with


. This contract includes 122 CV9035NL vehicles of the


. The MLU provides the CV9035NL with increased protection against current and future threats, including anti-tank missiles.

Hi-Res Version


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Precisely the type of MLU needed to keep IFVs relevant for the upcoming decade or so. 

I do wonder if Iron Fist is capable of dealing with drones and diving munitions which are the latest hotness or if that will require another system later on.

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1 hour ago, N-L-M said:

Precisely the type of MLU needed to keep IFVs relevant for the upcoming decade or so. 

I do wonder if Iron Fist is capable of dealing with drones and diving munitions which are the latest hotness or if that will require another system later on.

I suspect it depend on drone design. Also, will be interesting to see if it can intercept bombs like MAM-C, which are basically ATGM with engine removed and used as guided bombs.

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On 1/30/2021 at 9:31 PM, N-L-M said:

Precisely the type of MLU needed to keep IFVs relevant for the upcoming decade or so. 

I do wonder if Iron Fist is capable of dealing with drones and diving munitions which are the latest hotness or if that will require another system later on.

4 radars cover 360 horizontal, so it should be good for upto 45 degree from horizon,  I doubt the radar covers above 60 degree from horizon,  45-60 degree is iffy.  i do notice the radars are canted back a little...


it would only take 1 additional radar to sense the top,  thats implies a 1/4 price increase

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Yes, it is still in the tender although there was no noise whatsoever about it for months. Only KMW left the competition due to the change of requirements. 


The final trials shall start any day and will finish on 6th June. 


Few more photos of the CV-90 CZ here: https://www.idnes.cz/zpravy/nato/bvp-testovani-ascod-lynx-cv90-armada-zakazka-obrana.A210426_155418_zpr_nato_inc/foto/nahledy#INC8afde1_IMG_4472red.jpg

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