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Aquafarer Defender 500 (DF500) Commercial / Heavy-Duty Workhorse
Core commercial utility RIB stepping into the 5-meter class within the Defender series, upgraded with a 24° deep V deadrise and an integrated bilge fuel tank.
RIB Boats DF540COASTER
Aquafarer Defender 540 Coaster-style Console (DF540 Coaster-style Console)
The primary focus in the Defender Commercial/Special Utility series, featuring 'Inshore/Offshore Multi-purpose Operations & Exploration Patrol (Coaster Edition)'.
rib defender inshore mid-range commercial patrol sar
Overall Length 5.41 m / 17' 9'
Internal Length 4.21 m / 13' 10'
Beam 2.28 m / 7' 6'
Internal Beam 1.25 m / 4' 1'
Deadrise 24° (Offshore grade deep V commercial hull) / 24°
Tube Diameter 52 cm / 20'
Full Specifications ▼
Air Chambers 6
Fuel Tank 105 L / 28 Gal
Max Load 1,150 kg / 2,535 lb
Max Persons 12
Boat Weight 500 kg / 1,102 lb
Max Engine Weight 210 kg / 463 lb
Max Power 115 HP
Recommended Power 90 HP
Engine Shaft L (Long Shaft / 20')
Design Category Category C (Inshore / Inshore Special Utility)
TLDR
A 5.41m Coaster Edition commercial RIB with 24° offshore deep V hull, 105L fuel, Coaster console, rated for 115 HP.
- Coast guard, patrol teams, dive operators, and commercial marine businesses.
- Use cases: Coastal patrol with console protection, Search and rescue, Dive exploration
Aquafarer Defender 540 Coaster-style Console (DF540 Coaster-style Console)
The primary focus in the Defender Commercial/Special Utility series, featuring “Inshore/Offshore Multi-purpose Operations & Exploration Patrol (Coaster Edition)”.
DF540 Coaster is specially built for commercial water operations, search and rescue (SAR), dive exploration, and scenarios requiring rugged performance.
Key Features
- 5083 Marine-Grade Aluminum Alloy 24° Deep V Hull: Built with 4mm high-tensile aluminum alloy, featuring marine-grade passivated pretreatment and high-grade coating.
- Coaster Dedicated Modular Work Deck: Features a flush self-draining deck design, eliminating cumbersome soft upholstery found on pleasure craft to significantly increase deck workspace.
- Heavy-Duty High-Wear Protective Package: Standard equipped with full length keel guard and reinforced rub strake.
Available Colors & Materials
- Fabric: Standard French top-tier ORCA® Hypalon or reinforced Valmex® PVC material.
- Dark Grey, Black, and high-visibility Rescue Orange.
Standard Features
- Coaster Commercial Console (including windshield, stainless steel handrails, and switch panel)
- Single/Double Jockey Seats
Boat weight includes standard Coaster commercial console and jockey seats/commercial seats; excludes outboard engine weight and fuel.
Why this exists
Commercial operators need a purpose-built Coaster console RIB with flush work deck for multi-purpose patrol.
Product Definition
Who is it for?
A 5.41m Coaster Edition commercial RIB with 24° offshore deep V hull, 105L fuel, Coaster console, rated for 115 HP.
Designed for
Coast guard, patrol teams, dive operators, and commercial marine businesses.
Best For Your Business
Clubs
Coaster Edition patrol RIB with dedicated modular work deck.
Use Case
Patrol, SAR, commercial operations, dive support
Operating Cost
Low-moderate — commercial-duty components for daily operation, minimal cosmetic maintenance
Expected Lifespan
10-20 years in commercial service
Why Businesses Choose It
The Defender 540 Coaster (DF540 Coaster) is built for professional duty cycles — heavy-duty protection, commercial paint, and reinforced structure withstand daily commercial use.
Use Cases
Coastal patrol with console protection
Search and rescue
Dive exploration
Commercial water operations
Skill level
professional
Comparison
How it compares
The DF540 Coaster uses the same hull as the standard DF540 but features a Coaster-style console with full windshield for weather protection.
Frequently Asked Questions
What advantage does the Coaster console provide? ▼
Full windshield protection, stainless steel handrails, and larger dashboard area — better for extended offshore patrol in rough weather.
Is the hull the same as the standard DF540? ▼
Yes, identical hull, 105L fuel tank, and 115 HP rating.
Technical Data
Full Specifications
| Overall Length | 5.41 m / 17' 9' |
| Internal Length | 4.21 m / 13' 10' |
| Beam | 2.28 m / 7' 6' |
| Internal Beam | 1.25 m / 4' 1' |
| Deadrise | 24° (Offshore grade deep V commercial hull) / 24° |
| Tube Diameter | 52 cm / 20' |
| Air Chambers | 6 |
| Fuel Tank | 105 L / 28 Gal |
| Max Load | 1,150 kg / 2,535 lb |
| Max Persons | 12 |
| Boat Weight | 500 kg / 1,102 lb |
| Max Engine Weight | 210 kg / 463 lb |
| Max Power | 115 HP |
| Recommended Power | 90 HP |
| Engine Shaft | L (Long Shaft / 20') |
| Design Category | Category C (Inshore / Inshore Special Utility) |
Construction
Materials & Construction
hull
4mm aluminum 24° offshore deep V
tubes
ORCA Hypalon / Valmex PVC 52cm
max engine
115 HP
capacity
12 persons
fuel
105 L under-floor
Compliance
Certifications & Compliance
✓
Certifications
CE (2013/53/EU (RCD)) Certified by TÜV Rheinland
ISO 9001:2015 Certified by SGS
BSCI Certified by Intertek
UKCA Certified by Intertek
✓
Material Compliance
REACH (EU)
RoHS (EU)
California Prop 65
✓
Testing & Warranty
ISO 6185 (RIB Safety)
ASTM D751 (Seam Strength)
ISO 12217 (Stability)
Warranty
5 years against manufacturing defects
✔
CE Certified
Independently tested to EU safety standards — TÜV Rheinland.
⚙
ISO 9001:2015
Quality management system certified by SGS since 2022.
✦
Tested to Standard
Every unit pressure tested at 1.25x rated PSI for 24-48 hours.
☆
5-Year Boat Warranty
5-year limited warranty on tube fabric, seams, and hull; 2-year on SUP and accessories. 99.3% defect-free (AQL 2.5/ISO 2859).
⚖
REACH & RoHS
All materials comply with EU chemical and environmental regulations.
★
BSCI Certified
Social compliance audit verified for ethical manufacturing.
Compare with other RIB Boats
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Aquafarer Defender 540 (DF540) Heavy-Duty Offshore Workhorse
Mid-size Workhorse, the flagship model in the Defender Commercial/Special Operations Series, designed for all-around utility operations and offshore patrol.
View details
Aquafarer Defender 600 (DF600) Heavy-Duty Offshore Workhorse
Entering the 6-meter class in the Defender Commercial/Special Operations Series, upgraded with CE Category B offshore certification, serving as the main offshore patrol vessel (Offshore Defender).
Interested in Aquafarer Defender 540 Coaster-style Console (DF540 Coaster-style Console)?
Contact our team for detailed specifications, pricing, and ordering information.