The 2025 Defender 470 is a powerhouse among inflatable boats, measuring 15' 5" and designed for large crews, heavy equipment, and demanding water conditions. Featuring a robust interlocking aluminum floor system with full-length stringers, this boat provides a rock-solid, non-flexing platform. Built with high-tenacity 1,100 Decitex Mehler Valmex PVC and heat-welded seams, the Defender 470 is the ultimate choice for commercial diving, professional transport, and offshore expeditions.
Technical Specifications
| Brand / Series |
Defender Marine / 470 Heavy-Duty |
| Model / MPN |
470 Aluminum Floor (2025 Grey) |
| SKU |
DEF-470AL-GRY-2025 |
| Overall Length |
15' 5" / 4.70 m |
| Boat Weight (Unloaded) |
285 lbs (129 kg) - Hull & Floor |
| Passenger Capacity |
10 Persons / 2,425 lbs (1,100 kg) |
| Max Horsepower |
40 HP (Short Shaft 15") |
| Tube Diameter |
20" (Extra-large for high buoyancy) |
What's In The Box?
- Defender 470 Heavy-Duty Hull (Grey)
- Interlocking Aluminum Floorboard Set
- Full-Length Aluminum Side Stringers
- Fiberglass Bench Seat (Removable)
- Two (2) Aluminum Paddles with interior mounts
- High-Pressure Foot Pump
- Two (2) Heavy-Duty Carrying Bags (Hull & Floor)
- Repair Kit & Maintenance Guide
Maximum Capacity & Safety
The Defender 470 is built for the most serious aquatic tasks. With 20-inch diameter tubes and a deep inflatable V-keel, it provides a dry and stable ride even when loaded to its 2,425 lbs capacity. Safety is paramount with 5 separate air chambers and professional-grade Leafield C7 valves. Triple-reinforced rubbing strakes on the bottom of the tubes and keel allow for safe beaching on rocky shores, making it a reliable workhorse for rescue teams and wilderness explorers alike.
Frequently Asked Questions
1. Is a 40 HP motor necessary for this boat?
A 30-40 HP motor is recommended to achieve planing speed when carrying a full crew. For lighter loads (4-5 persons), a 25 HP motor is sufficient.
2. How long does it take to assemble the aluminum floor?
For two people, assembly typically takes 20-30 minutes. The interlocking design ensures the floor is incredibly rigid once the tubes are fully inflated.
Expedition Inflatable Specialist | Defender Marine Authorized | Global Secure Freight
