Solar Arch

Solar Arch – Heavy-Duty, Stylish, and Built for Offshore Cruising

The Martek Solar Arch is designed for sailors who need a stronger, more versatile solar panel mounting system. Ideal for long-distance cruisers and offshore sailors, it combines large load capacity, sleek styling, and simple installation into one durable package.

Crafted from polished 316 marine-grade stainless steel with precision-welded joints, the Solar Arch withstands saltwater and harsh offshore conditions. Its elegant design also enhances your boat’s profile, blending strength with style.

Key Features 

• Classic Styling – Polished 316 stainless steel delivers strength and a clean, modern appearance.
• Universal Base Mount – Fits straight, curved, vertical, or angled surfaces. Includes backing plates and fasteners.
• Universal Rail Mounts – Works with both 1-inch and 1 1/4-inch stern rails for a flexible fit.
• Quick Installation – Bolt-on design requires no custom modifications, saving time and effort.
• Precision–welded joints provide maximum strength, stability, and long-term performance offshore.
• Low Maintenance – Built to resist corrosion damage for years of reliable use.

What’s Included

• Stern rail mounting plates
• Universal deck or transom mounting and backing plates
• Standard 108-inch solar panel rails (holds three 35-inch-wide panels). Optional length up to XXX inches
• Solar panel mounting hardware

Technical Specifications

• Load Capacity: up to 600 lbs total
• Construction: Heavy-duty 1.50-inch diameter, .120 wall polished 316L stainless steel tube
• Welding: Continuously welded davit arm
• Height: 76 inches (excluding base mount)
• Reach: 41 inches
• Rail Mount: Fits 1.0 or 1.25-inch diameter rails
• Base Mount: 3.25 x 3.25 base and backing plate with 4-holes for 1/4-20 fasteners

Customization

We design all our products using advanced 3-D modeling software. If you need a customized part, we can accommodate that. Simply let us know, and we will modify the design to meet your specific requirements, ensuring a perfect fit for your sailboat or cruiser.

Estimated Delivery Timeline

Please allow an estimated lead time of fifteen (15) to twenty (20) business days for order processing and fulfillment. Lead times may vary depending on current order volume.

Check the Fit Before You Order

Every boat is different, so please compare this product’s dimensions and mounting requirements with your vessel before ordering. Check:

• Mounting location: enough space for the davit mounts on the stern rail and for the lower mounts on the deck or transom
• Clearances: room for the tender, motor, swim ladder, boarding gate and other gear
• Load rating: the davit’s rated capacity covers your tender, motor, and gear
• Compatibility: it works with your stern rail tube size and existing equipment

Your stern rail and mounting points must carry the load. Davits put heavy loads into the stern rail and the lower mounting points, and those loads increase when the boat is moving in a seaway. The buyer is responsible for confirming that the stern rail and the deck or transom at the lower mounts can safely carry the full load the davits will carry.

The buyer is ultimately responsible for ensuring the product fits the boat and intended use.

Stern Rail Reinforcement

A davit holds its load out past its mounting base, so the load acts as a lever on the stern rail. The davit’s rail-mount clamps and the stern rail have to resist that leverage. In a seaway, a tender’s motion can multiply the load on the rail to two or three times its static weight. Before installing a davit, make sure your stern rail can handle this dynamic load. If not, you can add diagonal braces (support arms).

Reinforcement options:

• Support arms (diagonal braces) stop fore-and-aft flexing. Each arm runs from the stern rail or davit down to the deck or transom, forming a rigid triangle. This carries the load as straight-line tension and compression instead of bending the rail. A properly installed support arm can make the rail many times stiffer fore-and-aft, up to 100 times in typical installations.
• A cross-tie (stabilizer strut) connects the two davit arms so they brace each other against side-to-side movement.
• Split stern rails, with an open walk-through at the centerline, may need additional side-to-side bracing.

Not sure what your rail needs? Send us photos and measurements of your stern rail, and we’ll recommend the right setup.

Resources

• Solar Arch Drawing
• Installation Instructions

Contact

Need help configuring your solar arch and davits? Call or text us at (727) 412-1002, or visit Martek Davits Information Request for details.