Description
11 Foot (3.2 m) AluTender Aluminum RIB Plans
The 11 Foot (3.2 m) AluTender Aluminum RIB is a compact, lightweight, and practical fully aluminum tender designed for recreation, fishing, transport, and general utility use. Its wide 5′ 11″ (1.80 m) beam provides excellent stability, while the open floor layout offers useful space for passengers and equipment.
Unlike a traditional inflatable RIB, the AluTender uses fully welded aluminum side buoyancy tubes. The boat includes seven independent buoyancy chambers with a total buoyancy capacity of approximately 950 liters (250 gallons), providing additional reserve buoyancy and safety.
Main Features
- 11 ft class aluminum tender
- Overall length: 10′ 6″ (3.20 m)
- Wide 5′ 11″ (1.80 m) beam
- Fully aluminum construction
- Aluminum side buoyancy tubes
- Seven independent buoyancy chambers
- Approx. 950 liters (250 gallons) total buoyancy capacity
- Maximum capacity: 3 persons
- Designed for outboard engines up to 8 HP
- Compatible with electric outboard motors
- Portable fuel tank
- Design Category D
- Easy construction suitable for beginners
Technical Specifications
- Overall Length: 10′ 6″ (3.20 m)
- Overall Beam: 5′ 11″ (1.80 m)
- Floor Dimensions: 86 5/8″ x 34 1/4″ (2200 x 870 mm)
- Approximate Dry Weight: 209 lbs (95 kg)
- Recommended Outboard Engine: up to 8 HP
- Electric Outboard Motor Compatible
- Construction: Fully Aluminum, Including Side Buoyancy Tubes
- Independent Buoyancy Chambers: 7
- Total Buoyancy Capacity: approx. 250 gallons (950 liters)
- Fuel System: Portable Fuel Tank
- Maximum Persons: 3
- Design Category: D
Aluminum Buoyancy Tubes
The AluTender uses rigid welded aluminum side buoyancy tubes rather than inflatable tubes. This creates a durable, low-maintenance structure that is resistant to punctures and suitable for demanding everyday use.
The side structure is divided into seven independent buoyancy chambers. Together, they provide approximately 950 liters (250 gallons) of buoyancy volume.
Aluminum Construction
Imperial Version
- Side buoyancy tubes: 1/8″ aluminum
- Bottom / floor structure: 5/32″ aluminum
Metric Version
- Side buoyancy tubes: 3 mm aluminum
- Bottom / floor structure: 4 mm aluminum
Construction Method
The boat is designed as a fully welded aluminum structure. Its compact dimensions and relatively simple geometry make the individual components easy to handle during cutting, fitting, and welding.
The rigid aluminum buoyancy sections eliminate the need for inflatable tubes and create a strong, practical tender that requires minimal maintenance.
Difficulty Level
Difficulty level: Easy.
The AluTender is designed to be easy to build, even for beginners. Its compact size, straightforward construction, and manageable aluminum components make it a practical first aluminum boat project.
Previous professional boat-building experience is not required, although basic aluminum cutting, fitting, and welding skills are recommended.
Power Options
The boat is designed for an outboard engine up to 8 HP. Its compact size also makes it well suited to modern electric outboard motors for quiet recreational use, fishing, or short-distance transport.
Perfect For
- Tender and dinghy use
- Fishing on lakes and sheltered waters
- Recreational boating
- Transport between shore and a larger boat
- Electric outboard applications
- DIY aluminum boat builders
- First-time aluminum boat projects
Instant download available after purchase – start building your AluTender today!
