Friday, November 28, 2025

Kitbashing a RTR model of an American patrol boat into a Norwegian Stridsbåt 90N

Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR

The model and the prototype

couple of years ago  I bought a (military) radio controlled boat. It was a Ready-to-Run model of a Combat Boat 90 made by ProBoat, and was made as an American version of the Swedish designed Combat Boat 90 or just CB90:
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
ProBoat's heavily armed American Ready-to-Run just out of the box
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
This Combat Boat is of the same type as the Norwegian Stridsbåt 90N (N for Norwegian), 'the Navy's Terrier', which was used by the Norwegian Coastal Artillery, and are now in service with the Norwegian Coastal Rangers. ProBoat's model has several differences from the Norwegian versions:
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR

So an idea was born to try to make my 'American CB90 Proboat' look more like an early version of the Norwegian Stridsbåt 90. The newer and upgraded versions have remote controlled weapon stations and differs even more from the Proboat visually, so that's why I opted for the earlier versions. My plan was not to copy exactly all the Norwegian details as there are more than 400 modifications from the original Swedish Stridsbåt 90, but to include those most visible details on the Norwegian version and make it recognizable as a Norwegian Stridsbåt 90N. This is a 'project' that's spendt too much time on my workbench, usually overtaken by other projects (over and over again). Does anyone else recognize this situation? Anyway, it got revitalized after I tried out some naval wargaming earlier this autumn and it was now about time to finish this project.

Making some few 'Norwegian' details

First of all some parts needed to be sourced, up-scaled and made on my 3D-printer. The file for the 'Gunner' was removed from Thingiverse when I was looking for it there again, but I manage to recreate the file through 'Wayback Machine'. The HMG-mount was part of a complete boat i a smaller scale, and I needed to remove all from that file BUT the mount it self and resize it. I think the M2 .50 cal is from a 'GI Joe' file. Together these few parts will probably contribute to make the boat look a little more 'Norwegian'.
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Primed to easier spot imperfections::
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Then sprayed with filler to get a smoother surface:
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Then the parts was primed with 'car primer'. Too bad this gray color didn't match the gray color on the boat, or the tan (from the filler spray) to the Norwegian tropical uniforms, so some color-mixing and painting was necessary. 
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Ready painted:
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
I also 3D-printed some parts to make a crib, so it would be easier to work on the boat:
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Then it was time for trying these new pieces and detail on the boat, so see what it would look like:
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR

Choice of prototype and painting

A visit to the Norwegian Naval Museum this summer gave answer to one of the challenges I had to replicate the camouflage pattern, which are about never photographed from the top. On the Naval Museum I found a Model of the boat, which I photographed top down and gave me the Camouflage-pattern for the decks.
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR

The Camouflage-pattern on the Norwegian CB90s are all the same pattern but are different colors for different periods and versions. The most common is the one with different browns and dark grey, which meant that my whole boat needed to undergo a major paint job. But I found some very few photos showing that at least 2 Norwegian CB90s was painted in lighter colors for International service in the Mediterranean sea and in the Bay of Aden. Actually I only found 5 photos of boats in these colors. These boats also used this scheme in their service in Norway later on. This meant that I could keep the original lighter grey base color of the ProBoat as a base for this version:
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
The crew on the photos below wear the Norwegian version of 'Desert Camo' which I tried to replicate on my Gunner:
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR

The camouflage pattern isn't very complicated,  but it really takes time to mask it:
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTRKitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
It's taken a while to paint this boat, but to prevent the paint 'bleeding' underneath the masking tape for the camo pattern, I've varnished (matt) 3 layers along all edges from the masking tape to the areas to be painted each time. I also painted 3 coats of paint each color for a even and solid coverage. I kept the weathering just to a bare minimum and just to the grilles, figure and the HMG. I feel like painting this boat has been like painting my military G-scale rollingstock, being like:
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR


Name and Number

I found a "hole" in the Navy's pennant number system for the Norwegian Combat Boats, an unused number, so I decided to assign this to my model; L4529, as this is also close to the 2 other vessels painted in this color scheme (L4527 and L4528).

These ships are also named after old Norwegian Coastal Fortresses (as they were first used by the Coastal Artillery. The KA-pennant numbers are from this period), and I found that one of our local Coastal Fortresses from where I live haven't given name to any of these boats (yet). So I decided to name my 'L4529' 'Rauer' after Rauer/ Rauøy Coastal Fortress. 

Rauer or Rauøy Coastal Fortress it self has a very interesting history as it was the very first one to open fire except for warning shoots and briefly engaged the German invasion-fleet bound for Oslo in april 1940, and surrendered after heavy fighting with German ground forces set ashore on the island. In the latter skirmish the Norwegian casualties was 2, while the Germans officially lost at least 60 but according to local eyevitnesess about 200. It could be a likely scenario for a future wargame perhaps.
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
These name boards are a mix of different STL-files blended together, resized and 3D-printed
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR

The final result

When ready painted, it was about time to reassemble it with the 'Norwegian details' again to see how everything fit together again:
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR

Conclusion 

This conversion from a 'ready-to-run' American patrol boat into a Norwegian one has taken considerably longer time that I've expected. I did have plans to finish it this year, but actually much earlier so it would still be season for taking it to the pond. But this project has been overtaken by so many others that it didn't. I managed to finish it this year at least. So after sitting at he workbench for about a year it's finally finished. I guess I will have to wait until next year to take it to the pond or a nearby lake though and then some updates will follow. This is how ChatGPT suggest my Combat Boat 90N will eventually look at the water:
Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR

20 Stridsbåt 90N was acquired for The Norwegian Navy in the 90ies, but today only 6 (very) upgraded are left operational. One is given to a museum and a number have been donated to the Ukrainian Navy along some Swedish ones. In Sweden they have also started to develop these boats into USVs (Unmanned Surface Vehicles). So I guess these iconic boats are about to become part of the 'Naval History' in Norway. I hope I managed to capture and preserve some of this history with my fictional Norwegian Stridsbåt 90N.

Kitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTRKitbashing a radio controlled ProBoat Combat Boat 90 into a Norwegian Stridsbåt 90N. Combat Boat 90. RC Pro Boat Riverine Patrol Boat 22" RTR


I'm really looking forward to bring this boat to the pond or a nearby lake for a test. As this 'Workbench Queen' are finally ready for some action, my workbench is 'cleared' and ready for new and other projects. Please become one of the followers to this blog to receive updates continuously. 


Friday, November 21, 2025

A (cold) Day Out

Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.

It's been a while since I've been running any trains in any gardens lately. My friends and fellow model railway club members have arranged a couple of outings this autumn, but I haven't been able to attend to them due to work. It's been so long so I've actually start missing it. So when Heine invited to a running-session last weekend, which was off work because he knows my working hours, I was delighted and in off course. He warned to us to dress to something suitable for a wet and muddy ground as it's been raining here for 3 weeks. 

When I woke up it was cold, and the wet ground had frozen hard. I'm quite not sure if this was the last autumn running session, or the first winter running session as there was 4°C below and the ground was frosty and the tracks icey. 

Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Luckily Heine can de-ice large parts of his layout  with 'ice remover'...
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
...in a custom built de-icer tank wagon which deposits de-icer from the tank to the tracks through the pads. A very clever design:
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
So today's first train was a short de-icer train:
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Thereafter the others were ready to run their trains. This engine made it's maiden voyage and first outing:
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Another charming short LGB-train:
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Heine's Harz Bahn rake:
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
One member also brought his Märklin Gauge 1 models (1:32) which also runs on 45mm gauge:
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
I brought 2 trains to this day out. One of them was my 1:19 scale German military Heeresfeldbahn train. I ran it with various numbers of wagons at various times throughout the day due to the weight and some inclines were slippery due to ice in the beginning, but not anymore when the temperature was rising:
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
The second train I brought this day was my 16mm Sm45 British War Department live steam engine. It's so heavy that it wouldn't experience any problems with slippery rails. A nice thing with running live steam in cold weather is that the steam/ smoke gets very visible. It takes so much attention to drive this train that I don't manage to take many photos of it while running. And no videos:
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
Ice in the turnouts could cause derailments...
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
...and ice on the track traffic jams in the inclines:
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
So it was just to 'Keep Calm' and enjoy a cup of coffee in the meanwhile:
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
It was not BBQ season now, but due to the cold weather Heine lit the fire-pit in the background:
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
-And added hotdogs to it (!):
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
The generous hosts and Chef himself, Heine:
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.
A lot of people visitied Heine's garden today, both train operators and visitors. It looked like all enjoyed themselves.
Running garden railway in the cold on frosted rails. How to de-ice or remove ice from garden railway tracks. Running garden railways during winter.

Thank for your invitation and hospitality Heine!
So, when is our next day out? It's not decided but the forecast for next week says snow. Perhaps I should start preparing a rake for winter (-warfare)?

Blog PostScript 

When browsing Facebook or online newspapers different adds the advertisers think I'm a potential customer for keeps rolling over the site. They couldn't be more wrong. The last one I read I actually consider as totally unrealistic and 'How NOT to build an army for wargaming'!!
Just to get an idea, this price equals to £ 1703,50, $ 2240,74 or € 1925,11.
And that's for a single figure on 'black week' sales!!

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