by Chazz Layne

Acapable and dependable workhorse, AT Overland Equipment’s Horizon has proven itself time and again to adventurers the world over. So how does one push this platform over the top, transforming it into an all-inclusive, ready-to-roll, adventure support system for extended excursions into the wilderness? A pair of custom-built Horizon trailers bound for Australia have been loaded up with everything and the kitchen sink to create just that.

Built for Unhindered Exploration

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To prep the trailers for service in the harsh coastal environments where they are headed, the basic Horizon chassis were first dipped in a zinc bath for galvanization. Additional protection from debris is provided by Line-X on all leading surfaces. Marine-grade hardware was used for all fasteners, hinges, and latches. A MAX Coupler and Aero silent hitch pin provide peace of mind and a quiet connection to the tow vehicle. Tread plate fenders offer additional grip when wet, and high-powered LED floodlamps make finding camp in the dark that much easier.

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The forward end of the cargo box provides enough storage for a Folboat packable boat, while still leaving enough space for two drawers and a massive dual-zone National Luna fridge/freezer to the rear. A custom swing-out spare tire carrier also acts as a platform for carrying the boat’s outboard motor. Several Rotopax cans provide additional fuel for the boat and tow vehicle, as well as extra water, first-aid kit, and a tool kit.

Built for Extended Field Use

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A large Odyssey PC-1800-FT 190 amp-hour battery stores power for the trailer’s systems, and recharges via a combination of dedicated 4-gauge connection to the tow vehicle, solar panels, and a wind turbine. Power is managed by an array of battery maintenance, charge controllers, and status panels located in the galley. A Xantrex Prosine inverter provides clean and reliable AC power.

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A custom 31-gallon tank replaces the area normally taken up by a 19-gallon tank and two 20L jerrycans, and ensures an ample supply of water is on-hand for weeks of boondocking. Dual 11-pound propane tanks provide fuel for the on-board water heater and galley stove. When needed, on-board air is provided by an Extremeaire Jr. with a 2-gallon air tank.

Built for Comfort and Convenience

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Comfort becomes an important factor with long periods of time spent traveling. An Eezi-Awn Globedrifter tent tops the trailer to provide a good night’s sleep, and the attachable Add-A-Room creates cabin-sized interior square footage. On the galley side of the trailer a Fiamma F35 Pro 2.2-meter awning extends with custom wall panels to create a fully enclosed kitchen and dining area should the weather turn sour. An additional custom awning can be setup around the back of the trailer to connect the two enclosed rooms. All interior rooms and storage areas feature low-amperage LED lighting.

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Nothing guarantees comfort in the field quite as well as being able to keep clean, and with 35 gallons of water on board there’s plenty to spare for the propane-fired Camp Chef Triton shower. An additional faucet flows into a stainless steel sink with attachable remote drain hose for smaller cleanup tasks.

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For a complete list of specifications on these custom-build Horizon trailers, or to plan your own trailer build, contact AT Overland Equipment at 877-661-8097 or visit atoverland.com.

By Land or Sea

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About the Author: Chazz Layne

Chazz Layne is an adventurer, designer, and photographer based in Prescott, Arizona. Since early childhood he's had a passion for travel and exploration, a passion which continues to fuel both his creativity and modern nomadic lifestyle. In addition to his work in design and photography, Chazz is an associate editor with Expedition Portal and regular contributor to Overland Journal. You can connect with Chazz or learn more about his activities at chazzlayne.com.