Outdoor

A Historic Norwegian Rescue Boat

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RS 58 “Sørlandsskøyta”: Recreated as an RC-Ready 3D Printable Model

The history of maritime rescue is closely connected with the development of specialized vessels capable of operating in difficult coastal waters, often when ordinary boats could no longer safely do so. In Norway, this role has been carried out for more than a century by the Redningsselskapet, whose rescue boats have evolved alongside changes in boatbuilding technology, propulsion and the needs of coastal communities. Among the vessels from this period, RS 58 “Sørlandsskøyta” represents an important transition in Norwegian rescue-boat design. Launched in 1956 at Trosvik Verksted in Brevik, she was the first steel-hulled rescue boat in the Redningsselskapet’s fleet; after RS 58, steel became the standard hull material for the organization’s rescue boats. The vessel was designed by Rich. G. Furuholmen and entered operational service in 1956, remaining in service until 1987.

At 13 metres long, 4.03 metres wide and with a displacement of approximately 25 tonnes, Sørlandsskøyta was a relatively compact vessel, but she was designed for serious work. Her documented equipment included radar, direction-finding equipment, radio communication, a towing hook, hand-operated steering and anchor machinery, and a portable salvage pump. Her original engine was later replaced by a 170 hp General Motors diesel, giving the vessel a reported speed of approximately 9 knots. The boat’s working life extended over three decades and included service from Flekkefjord and Hvaler, followed later by service in Sør-Trøndelag before she was eventually used as a training and work vessel.

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The USCGC Cape Class

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The Sub-Chaser That Saved the Long Weekend

From Cold War Depth Charges to Perfect Lake Sovereignty

There is a specific kind of magic that happens when you take a vessel designed to hunt Soviet submarines in the Atlantic and scale it down to rule your local pond.

During the tense dawn of the Cold War, the United States Coast Guard realized it needed a very specific tool: a fast, rugged, shallow-draft cutter that could sprint into the waves, drop a pattern of anti-submarine ordnance, and survive brutal coastal weather. The answer was the 95-foot Cape-Class Patrol Boat.

With their distinct, angular aluminum superstructures sitting on unforgiving steel hulls, these cutters spent decades conducting critical search-and-rescue operations, drug interdiction, and maritime safety patrols. They were loud, they were tough, and they were utterly reliable.

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CG-36500 Motor Lifeboat

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Build the Unsinkable Legend

Some boats are remembered for their speed. Others are remembered for their beauty. The CG-36500 Motor Lifeboat earned its place in history through courage, reliability, and extraordinary engineering. Designed by the United States Coast Guard to operate in conditions that would force most vessels back to harbor, the 36-foot motor lifeboat became one of the most successful rescue craft ever built. Its defining moment came on 18 February 1952, when CG-36500, commanded by Boatswain’s Mate First Class Bernard Webber, crossed the treacherous Chatham Bar during a violent winter storm to rescue 32 sailors from the tanker SS Pendleton. The mission has since become one of the most celebrated rescue operations in Coast Guard history and inspired the film The Finest Hours.

At Endtas, we wanted to recreate not only the appearance of this historic vessel but also its practical, purposeful character. The result is a highly detailed 1:16 scale model measuring approximately 70 cm (27.6 inches) in length. Every major fitting, deck accessory, and structural feature has been recreated from historical references to produce a model that looks equally at home on a display stand or out on the water. With more than 100 high-detail components, the model offers an engaging building experience while remaining practical to print on everyday desktop FDM printers. Our philosophy has always been to combine historical accuracy with thoughtful engineering, ensuring that every project is enjoyable to build as well as visually authentic.

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Gentleman’s Runabout

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A Classic Wooden Speedboat Reimagined for the Maker Community

Removable Canvas Top is also included

There are few boats that capture the elegance of the early twentieth century quite like the classic gentleman’s runabout. Characterized by their polished mahogany hulls, long foredecks, graceful tumblehome sterns, and powerful inboard engines, these boats became symbols of craftsmanship and leisure during the golden age of recreational boating. Inspired by this timeless style, our latest project brings the spirit of these handcrafted classics into the world of additive manufacturing. The Gentleman’s Runabout combines authentic proportions with modern engineering, resulting in a large-scale 3D printable model that is equally suited for display and radio-controlled operation. The model is available through our Cults3D store alongside our growing collection of RC-ready maritime designs.

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SolaRay Drive

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A Modular Approach to Tactical Aquatic Propulsion

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.

Image created with AI assistance. Model designed and engineered by Endtas.

Continue reading for links to download this product free for your hobby uses.

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The Lun-Class Ekranoplan RC-Ready

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Evolution of the Giant.

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.

Image created with AI assistance. Model designed and engineered by Endtas.

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SMS Sachsen Ironclad

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A Coastal Defender from the Early German Empire

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.

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The Hamilton-Class High Endurance Cutter

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The Coast Guard’s Workhorse for Half a Century:

A New Kind of Cutter for a New Era

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.

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Freedom-Class Littoral Combat Ship

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A New Kind of Warship

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.

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Version with multiple water jet and propeller propulsion options.

Version with propeller propulsion option only, no water jets.

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Thornycroft Coastal Motor Boat 55ft

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Britain’s Secret Weapon of the Seas

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.

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