In the world of maritime engineering, propulsion is everything. Whether you are designing a stealth vessel, a deep-sea explorer, or a rapid-response rescue craft, the ability to move efficiently through the water is the primary challenge.
At EnDTaS, we believe that high-end engineering shouldn’t be locked behind corporate walls. To push the boundaries of the maker community, we are introducing the SolaRay Drive Unit—a versatile, 3D-printable propulsion system designed for the next generation of aquatic projects.
Continue reading for links to download this product free for your hobby uses.
For those who have followed our journey at EnDTaS, the Lun-Class Ekranoplan has always been more than just a model to us—it is a symbol of audacious, boundary-pushing engineering. In our previous release (click here to open it in a new tab), we focused on capturing the sheer scale and imposing presence of the Soviet “Sea Monster,” providing a high-fidelity 1-meter replica for collectors and historians.
But for us, a static model is only the beginning. As a studio dedicated to Experimental Naval Designs, we asked ourselves: How do we move this behemoth from the shelf to the water?
From Display Piece to Dynamic Platform
The challenge of the Lun-class is its inherent contradiction: it is a massive, heavy-looking vessel that must remain light enough to exploit the ground effect. To translate this into a successful RC project, we couldn’t simply use the same geometry as the display model. Weight is the enemy of performance.
We are proud to introduce the Lun-Class Ekranoplan RC-Ready Lightweight Edition. This isn’t just a refinement; it is a complete engineering overhaul designed specifically for the motivated maker and RC enthusiast.
Continue reading for more information and renderings,
the scene is AI generated but the model is ours, made by human hand every curve and point.
The SMS Sachsen was the lead ship of the Sachsen-class ironclads, a group of four armored vessels built for the Imperial German Navy in the 1870s. Alongside her sister ships—Bayern, Württemberg, and Baden—she represented a distinctly different approach to naval warfare compared to the ocean-going ironclads of Britain and France. Rather than projecting power across distant seas, these ships were designed with a more focused mission: defending Germany’s coastline and controlling the confined waters of the North Sea and Baltic.
This role shaped every aspect of their design. The Sachsen-class ships were relatively compact but heavily armored, with a low freeboard and a strong emphasis on protection and firepower over range. Their layout reflected the transitional nature of naval engineering at the time—positioned between earlier broadside ironclads and the more advanced turret ships that would follow. Central battery arrangements, thick armor belts, and powerful main guns gave them serious defensive capability, even if their seaworthiness in rough open water was limited.
Although not as famous as later battleships, the Sachsen-class played an important role in the early development of the Imperial German Navy. They embodied a strategic mindset focused on coastal defense, deterrence, and controlled engagement, rather than global reach. Over time, as naval doctrine evolved and larger, more capable ships entered service, the Sachsen-class became less central—but they remain a fascinating example of a navy defining its identity during a period of rapid technological change.
Continue reading for more info about our 3d printable Sachsen model,
When the United States Coast Guard began planning its next generation of large ocean-going cutters in the early 1960s, the service had been operating converted World War II-era Navy vessels for nearly two decades. The ships were aging, increasingly difficult to maintain, and unable to fully meet the demanding operational requirements of a modern Coast Guard. What emerged from that planning process was one of the most successful and enduring cutter designs in the history of American maritime law enforcement — the Hamilton-class High Endurance Cutter, a vessel so capable and well-conceived that it would serve the Coast Guard for nearly half a century.
The initial contract for the lead ship, USCGC Hamilton (WHEC-715), was awarded to Avondale Shipyards in New Orleans, Louisiana in January 1964, with construction beginning shortly thereafter. Hamilton was launched on December 18, 1965 and commissioned on March 18, 1967, named for Founding Father Alexander Hamilton, the first United States Secretary of the Treasury and founder of the United States Revenue Cutter Service. She was the first genuinely new high-endurance cutter the Coast Guard had received in more than twenty years, and from the moment she entered service it was clear she represented a significant leap forward in capability. Originally envisioned as a large-scale procurement, long-range plans called for up to 38 cutters to be constructed over the following decade, but budget constraints and the wind-down of the international ocean stations program reduced the authorized number to just 12 ships, all built at Avondale between 1965 and 1972.
When the United States Navy introduced the Littoral Combat Ship concept in the early 2000s, it represented a fundamental rethinking of what a modern surface combatant could and should be. Traditional warships were large, heavily armed, and designed for blue-water operations far out at sea. The LCS was conceived for an entirely different environment — the littoral zone, the shallow coastal and near-shore waters where conventional warships struggle to operate effectively, yet where a growing number of real-world threats were emerging. Fast, nimble, and built around a modular mission system architecture, the LCS was envisioned as a vessel that could be rapidly reconfigured for entirely different combat roles depending on the threat — surface warfare one week, mine countermeasures the next, anti-submarine operations the week after.
The Freedom Class is one of two LCS variants developed for the US Navy, built by Lockheed Martin and Fincantieri Marinette Marine at their Wisconsin shipyard. Where its sister variant, the Independence Class, adopted a radical trimaran hull form, the Freedom Class took a more conventional semi-planing monohull approach — sleek, fast, and remarkably capable for its size. Displacing around 3,900 tons at full load and stretching just under 116 meters in length, Freedom-Class ships are powered by a combined diesel and gas turbine propulsion system driving quadruple waterjets, allowing them to reach speeds well in excess of 40 knots — making them among the fastest warships of their displacement in any navy in the world.
Continue reading for more info or here are the purchase links of the model.
From World War I Torpedo Raider to Modern 3D-Printed RC Model
Origins: A Bold Idea from Junior Officers
Few naval weapons have such an unlikely origin story as the Coastal Motor Boat (CMB). In the summer of 1915, three junior officers of the Harwich Striking Force — Lieutenants Hampden, Bremner, and Anson — hatched an audacious proposal: could a small, fast motor boat, armed with a torpedo, travel over enemy minefields and attack Imperial German Navy ships at anchor in their heavily defended bases?
The Admiralty gave tentative approval, and a Staff Requirement was issued for a new type of vessel to serve in the North Sea. The specifications were demanding. The boat had to be capable of at least 30 knots when fully loaded, carry enough fuel for a meaningful radius of action, and be armed with torpedoes, depth charges, or mines, supplemented by light machine guns. Several established shipbuilders were approached, but only one company believed the requirement could actually be met: John I. Thornycroft & Company.
The French Scorpène-class submarines represent one of the most successful and widely adopted modern submarine designs in the world. Developed by Naval Group (formerly DCNS), the Scorpène class combines compact dimensions with advanced stealth, long endurance, and multi-role flexibility. These diesel-electric attack submarines have been built for and operated by several nations — including India, Brazil, Chile, and Malaysia — each version tailored to local operational requirements. With their quiet propulsion systems, advanced combat management, and modular construction, the Scorpène-class has become a global standard for next-generation conventional submarines.
To bring this modern masterpiece into digital form, we created a 1:87 scale, 3D printable model of the Scorpène-class submarine, designed to capture both the beauty and engineering precision of the original vessel. Measuring 763 mm in length, this version consists of 35 separate high-poly STL files, optimized for easy printing with most FDM and resin printers. The hull interior is mostly empty, with a 5–7 mm wall thickness, reinforced by three internal bulkheads that ensure alignment and add rigidity during assembly. These features make the model both durable and straightforward to build, even for large-format prints.
The Soviet Sea During the final decade of the Cold War, the Soviet Union unveiled one of the strangest and most ambitious machines ever to touch water: the Lun-class ekranoplan. Neither ship nor aircraft, it belonged to an unusual category known as ground-effect vehicles, designed to skim just a few meters above the surface of the sea.
The Ship That Couldn’t Stay Afloat: The Breathtaking (and Brief) Voyage of the Vasa
In the golden age of naval might, when ships were the superweapons of empire and pride floated on salted winds, Sweden set its sights on maritime glory. Enter the Vasa, a warship so lavish, so majestic, and so doomed that it sailed straight from royal ambition into the sea floor—in under 20 minutes.
This isn’t your average tale of maritime disaster. The Vasa’s story is equal parts engineering marvel, political drama, and tragicomic miscalculation. Continue reading for the rest of the story and a free STL file for 3d printing your own Vasa. We also have a paid model, 1m long, RC compatible, and with more details. Get the 100 piece model from here.
rear and side figures are detachable, use as many as you like.
The Silent Workhorses of the Cold War now is here as an RC-Ready 3d model.
During the tense decades of the Cold War, the Royal Navy quietly operated a fleet of specialized vessels designed not for battle, but for survival—of fleets, ports, and shipping lanes. These were the Ton-class minesweepers, an unglamorous yet vital class of ships that ensured safe passage through mine-infested waters across the globe. Though small in size, their contribution to post-war naval security and NATO maritime operations was significant.
(wood paneling seen in the renderings are textures only, the 3D model has flat deck surfaces.)
This article includes a 1m 3D model of the Ton Class that can be printed, painted and used for display purposes. The interior of the model is empty and hull has approximately 5-6mm thickness all around making this model a candidate to be converted to a remote controlled boat. There is also a free STL file for a tabletop display model of the Hull Class. You can download it by using the link at the end of the article. Enjoy and please share this page on your social media. If you want to purchase the paid model, HERE IS THE PURCHASE LINK.
With the latest update, the Ton-class model has evolved from a detailed display project into a fully functional RC-ready platform. The internal structure has been carefully reworked to support real-world components, including propulsion systems, steering mechanisms, and onboard electronics, while preserving the clean external lines of the vessel. This transformation significantly expands the scope of the model: what was once primarily a visual recreation can now become a working representation of a classic minesweeper. By combining historical fidelity with practical engineering, the model offers builders the opportunity to experience the Ton-class not just as a static object, but as a dynamic and interactive project on the water.
two sets of propellers are includedDC and servo motor holdersdog bone coupler is included
