Mikro-Mir 1/144 Nordenfelt I Submarine

The Nordenfelt I was a 56-tonne, 19.5-metre long vessel based on the Resurgam of 1879. It had an improved range of 240 km, and was armed with a single torpedo and naturally a 25.4 mm Nordenfelt machine gun. Bolinders in Stockholm was contacted for the manufacturing, and the submersible was built between 1884 and 1885. The N°1 was a pure submersible, first and foremost operated from the surface, thanks to a 100 HP steam engine, fed by a coal-fired boilers, procuring the modest speed of 9 knots. It was shut down when diving as the smokestack was collapsible. The idea was there was still sufficient steam remaining inside the boilers to procure some speed underwater. The ballasts were filled or purged by pumps not electrically, but also by using steam, and there were two vertically-acting screws over the deck to make the sub plunging or surface quicker.