MJ Sailing

In the evolving landscape of maritime storytelling, MJ Sailing stands as a testament to the power of technical precision and relentless curiosity. Led by high school sweethearts Matt and Jessica Johnson, the channel has matured from a traditional sailing vlog into a high-level masterclass in boat construction and offshore preparedness. After logging over 35,000 nautical miles across 27 countries, the couple has traded the open ocean for a construction hangar in Kent Island, Maryland, where they are currently finalizing one of the most ambitious DIY catamaran builds in the community.

Their journey is characterized by a deliberate "stepping up" in technical complexity. From their early days circumnavigating the North Atlantic in a Sabre 34 to the high-latitude challenges of the Arctic in a custom aluminum expedition boat, Matt and Jessica have consistently sought vessels that push the boundaries of performance and safety. Their current project—a custom Max Cruise 42 catamaran—is the culmination of a decade of lessons learned on the water, featuring advanced composite construction and a pioneering electric propulsion system.

Key Takeaways

• Channel Vibe: Highly technical, DIY-focused, and cinematic. A deep dive into the "how" and "why" of boat building.
• The Boat: Currently building a Max Cruise 42 performance catamaran with custom foam-core composites and carbon reinforcements.
• The Journey: Transitioned from classic monohulls to high-latitude aluminum expedition vessels, now moving into the world of performance multihulls.

⚓ Quick Specs & Channel Vitals

Meet the Crew and the Fleet

Matt and Jessica Johnson

Matt and Jessica are the architectural minds behind MJ Sailing. Matt’s technical aptitude for electrical systems, fiberglass work, and mechanical engineering is paired with Jessica’s project management skills and keen eye for interior ergonomics. Together, they have built a brand synonymous with transparency; they don't just show the finished product, but the grueling fairing, the failed components, and the financial reality of maintaining an offshore lifestyle. Their philosophy is simple: build it right, understand every system, and sail it anywhere. Source: mjsailing.com

The Evolution: From Serendipity to the Max Cruise 42

The MJ Sailing fleet is a chronological map of their growth as sailors. Their first boat, Serendipity (a Sabre 34 Targa), taught them the ropes of blue-water cruising and Atlantic crossings. Their second vessel, Elements of Life, was a 37-foot custom aluminum monohull that allowed them to tackle the ice-strewn waters of Greenland and the Arctic. However, the search for the perfect liveaboard platform led them to the Max Cruise 42. This performance kit catamaran is being heavily modified at Kentmorr Marina to include custom structural reinforcements and a unique, retractable electric propulsion system that reduces drag and maximizes efficiency. Source: YouTube - Episode 376 Walkthrough

Voyages, Destinations, and the Arctic Frontier

High Latitudes and Atlantic Crossings

MJ Sailing is one of the few channels that has successfully bridged the gap between tropical cruising and high-latitude exploration. Their voyage to Greenland aboard Elements of Life remains a highlight of their content, showcasing the technical preparations required for sub-zero temperatures and remote navigation. They have completed two Atlantic crossings, transited the Erie Canal, and explored the intricate island chains of the Caribbean and the Azores. These varied environments have directly influenced the design of their new catamaran, which is intended to be a true "all-oceans" vessel. Source: mjsailing.com/voyages

Navigating the Chesapeake Bay (2026)

As of May 2026, the couple is based in the heart of the Chesapeake Bay. Working out of their dedicated hangar, they are in the final "systems integration" phase. The focus has shifted from the mess of fiberglassing to the precision of electrical wiring and interior finishing. Their presence in the Annapolis area has allowed them to collaborate with industry leaders in marine tech, ensuring their 48V Victron-based power grid is a benchmark for modern cruising yachts. Source: MJ Sailing Episode 376

Life Aboard: Techniques, Gear, and Challenges

The Technical Tech Stack

The new catamaran is a showcase for modern marine innovation. Key systems include a massive Victron Energy 48V lithium bank, TotalBoat epoxy systems for the structural build, and a custom anchor roller assembly. Matt’s approach to the electrical system involves isolation transformers and high-efficiency DC-to-DC converters, aiming for a completely gas-free galley and propulsion system. This move toward electrification is a major theme of their 2025-2026 content, providing a roadmap for other sailors looking to reduce their carbon footprint. Source: MJ Sailing Episode 374

Learning from MJ Sailing: The DIY Ethos

What sets MJ Sailing apart is their willingness to teach. Their videos provide exhaustive detail on fairing techniques, plumbing manifolds, and electrical circuit design. Viewers can learn the intricacies of building with composites, from vacuum bagging to hand-laying carbon fiber reinforcements. They have effectively democratized the boat-building process, showing that with enough research and discipline, a couple can build a world-class performance yacht in a marina hangar. Source: MJ Sailing Episode 375

The YouTube Journey and Financing the Dream

Funding a custom 42-foot catamaran build while living in a marina is a massive undertaking. MJ Sailing utilizes a robust business model centered on Patreon support, branded merchandise, and high-value technical partnerships with companies like TotalBoat and Victron. They are also known for their transparency regarding build costs and cruising expenses, often releasing detailed financial breakdowns that help aspiring cruisers plan their own journeys. Their primary goal remains returning to the water to continue their mission of global exploration. Source: mjsailing.com/support

Top Episodes: Where to Start Watching

• Inside Our Homebuilt Catamaran (Full Walkthrough): A 2026 comprehensive look at the nearly completed Max Cruise 42.
• We Almost Cooked Our Electrical System: A critical lesson in high-voltage safety and system protection.
• The Panel That Will Power Our Entire Catamaran: A deep dive into the engineering of a modern 48V DC distribution system.

Channels Similar to MJ Sailing

• Sailing Uma: For fans of technical innovation, electric propulsion, and the "step-by-step" DIY boat building philosophy.
• Sailing Project Atticus: For viewers who appreciate high-quality refits and the realities of living on a budget while chasing blue-water dreams.
• RAN Sailing: For those who enjoy cinematic family adventures and the technical challenges of building a custom offshore vessel (RAN III).

Frequently Asked Questions about MJ Sailing

What kind of boat is MJ Sailing building in 2026?
They are building a Max Cruise 42 performance catamaran, a composite-built vessel that they have heavily customized for long-term offshore exploration.

Where is MJ Sailing located?
As of May 2026, they are based at Kentmorr Marina on Kent Island, Maryland, finishing the final stages of their catamaran build.

Does the new MJ Sailing catamaran have electric motors?
Yes, the boat features a unique retractable electric propulsion system, integrated into a high-capacity 48V Victron electrical grid.

How many miles have Matt and Jessica sailed?
They have logged over 35,000 nautical miles and visited 27 countries across their previous two vessels, Serendipity and Elements of Life.