August 2026

Hippo BARV

Challenger 3

Viking

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Hippo Beach Recovery Vehicle

Royal Marines / HMS ALBION, 2025

3D Printed  - Design by Eaglenest3D

The Hippo BRV follows in a long line of amphibious support vehicles dating back to WW2, when Sherman tanks were converted to provide armoured support to landing vehicles on D-Day, clearing vehicles that had become stuck and refloating landing craft that were stranded on the beaches.  

The Shermans were replaced in the early 1960s by conversions of surplus early mark Centurion tanks and these served with the Royal Marines (onboard HMS FEARLES/INTREPID/ALBION/Bulwark until the early 2000s, when they were replaced by a conversion of the Leopard 1 tank named the Hippo BRV.  

Produced by Alvis Moelv in Sweden (later BAE SYTEMS Hagglunds), they feature a raised ship’s bridge structure, raised exhausts/intakes/vents and nose buffers to enable them to push grounded landing craft or other stuck vehicles that might be obstructing a beach landing point.  Unlike the Shermans and Centurions, the Hippo is not armoured, but the enclosed cabin provides shelter against severe environmental conditions and also enables NBC protection for the crew.  The vehicle retains its original propulsion, but gearing has been revised to enable greater torque for pushing or towing, albeit at a much lower speed.

The RN possesses 4 Hippos, although their current disposition is not clear given the untimely retirement of HMS ALBION & BULWARK and their sale to Brazil.  The Royal Netherlands Marine Corps also possesses similar Leopard 1 based BRVs.

 



Printing a Hippo


This is another 3D print, this time from Eaglesnest3d, again via the Cults3D website.  The STL files cost £10.31 and are superb, with a ready supported version overcoming my ongoing issues with the provision and subsequent removal of supports.  As supplied the files are sized for 1/72 scale.  Sadly, the issue with wheels not printing fully remains, with the lower corner of the two spare wheels on the cabin side being a little distorted where their supports were attached.  However, I did manage to remove supports from all the guard rails and the wing mirrors without breaking anything!


If this model had arrived in a kit box from one of the major manufacturers, I would have been impressed by it; that it came as a set of low cost "print at home" files is really quite remarkable.  The detail and accuracy is at least as good or better than injection moulded, without the compromises forced by moulding technology and the need to assemble smaller parts. Better still, if you mess it up in any way, you can just print another.

 

  


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Background and below - Challenger 3 makes its public debut at a very dusty and dry Tank Fest 2026.

Challenger 3 Main Battle Tank

Tank Fest, 2026

3D Printed  - Design by M3DTech

The Challenger 3 is an updated version of the Challenger 2 produced by UK-German joint-venture Rheinmetall BAE Systems Land (RBSL), featuring a new turrret, with a NATO Standard 120mm L55A1 smoothbore gun, enhanced armour (including add-on modules), improved thermal sights and thermal commander’s sights, digital system architecture  improved suspension, laser warning systems, active protection systems and an uprated engine with improved cooling.  

Adoption of the smoothbore gun over the traditional rifled barrels carries a potential loss of accuracy, but enables the use of smarter and more modern NATO standard ammunition, thus improving UK and wider NATO logistics.  A joint ammunition development programme with Germany will enable new ammunition variants to be developed at lower costs.

A total of 148 existing Challenger 2 tanks will be converted, with full entry into service planned for 2027.  The Challenger 3 made its first public appearance at this year’s Tank Festival at the Bovington Tank Museum, where it displayed alongside a Challenger 1 and Challenger 2.

  

BvS-10 Viking

Tank Fest, 2026

3D Printed  - Design by MilModSolutions

The BvS10 (Bandvagn Skyddad 10) was originally developed as a collaboration between Hägglunds Vehicle AB - and the Royal Marines as an upgrade to the existing Bv206 tracked vehicles already in service.  


First fielded in 2006, the Viking, as it is known in British service, is powered by a Cummins 5.9 litre diesel, and can travel at up to 65 km/h on road surfaces, with a load capacity of up to 5 tons.


The Royal Marines Armoured Support Company, now known as "Viking Squadron" deployed with Vikings to Afghanistan in September 2006.  


The UK currently operates 4 variants: a Troop Carrier carrying 2 crew and 10 passengers; a Command Vehicle with 2 crew plus up to 8 passengers plus an enhanced communications platform, a Repair and Recovery variant and an Ambulance Variant (AV).  


All Vikings are air-portable under a Chinook helicopter and can be embarked in the A400M or C-17.  They are also fully amphibious for either landings or river crossings.

 

A Hippo approaches a Royal Navy Landing Craft © UK MOD FLEET-20230305-XX0036-254 LPhot Bill Spurr MOD 2024 - used under OGL

Printing a Challenger 3


This “quick print” came on a whim after I attended this year’s marvellous Tank Fest.  There are plenty of 3D files for Challenger 3s, but most represent Challenger 2 upgrade technology demonstrator, which doesn’t really show the new “squarer” turret.  


These cheap files, from  M3Dtech (£5.31) were much better in that respect, but still needed some plastic card add-ons for sensors, turret roof armour and the bolt-on modular armour (seen in public for the first time at Tank Fest.  


 

  


Printing (3) BVS-10s


Having had success with the Hippo BARV, I started looking for other Royal Marines vehicles.  A Centurion BARV (the Hippo's predecessor) is also available and I will undoubtedly print one soon, but what drew my eye was a set of files for the BAe-Hagglunds BVS-10, known in RM service as the Viking.   


The files are intended for 1/100 scale and are not in any way as good as the Hippo, but looked to have some potential.  The particular STL file that I chose (there are several) is an Austrian Army variant, so clearly some changes would be needed.

 

My first job was scaling up to 1/72, and here I found once again that the printed item was too small when I tried to match actual measurements. After a few rescales and test prints to determine the best orientation and supports for the tracks, I cut down the roof boxes and (for two of my prints) and removed the snow plough that wasn't printing well.  


Royal Marines Vikings carry a GPK turret with either a heavy Machine Gun or a GPMG.  These I sourced from another set of files (which did scale up correctly!).  For one of the prints (the one that kept the snow plough) I added an EOS400 Remote Weapons Station instead, just to give the occupants a little more comfort in arctic conditions - French and Austrian BVS-10s do have RWS turrets.  


As with most military vehicles, the Vikings carry a significant amount of extra equipment on their roofs, so the last of my stash of small rucsacs was added, along with a few boxes that I covered in foil -based tarpaulin.  I'm not sure what the orange tubes carry, but most Vikings seem to carry them.  I also drilled a few holes for radio antennae .  For amphibious operations, the Vikings have a bow deflector plate that is fitted to reduce the likelihood of waves topping over the bow.  This was added from a little bit of plastic strip.  


The joint between the two vehicles was very basic, so I added some sprue and rod based alternatives, along with some hydraulic hoses.  I also added some smoke cannisters to one of the vehicles.


These 3 were much less successful prints than my previous ones (although I have finished 3, I had to print several more before I was happy. The basic files were quite crude and have some very significant accuracy issues in shape and detail, but they will do for now!  

 


 

  


A Viking disembarks (or embarks?) from a Royal Navy Landing Craft (source not known)

#Challenger #Viking