Offshore Helideck
Built For Extreme Environments
Marine and Oil & Gas Aluminum Helideck
Helidex has been at the forefront of engineering and manufacturing advanced landing platforms, leading the industry with a legacy of safety, compliance, and innovation. Our specialized Marine and Oil & Gas aluminum helidecks are designed to withstand the harshest conditions, providing a stable and secure foundation for your critical offshore operations. For marine, helidecks can be installed onto SOV, FPSO, OSV, Windfarm installation vessels. For oil & gas, helidecks can be installed onto Oil rigs, Jack ups, Semi-Submersible Platforms, Normally Unmanned Installations, Substations and more.
Why Choose Helidex Marine & Oil and Gas Helidecks?
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Unmatched Safety: Our aluminum helidecks and heliports are rigorously tested and engineered to meet or exceed international safety standards.
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Extreme Durability: Constructed from high-quality aluminum, our helidecks and heliports are corrosion-resistant and designed for long-term resilience.
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Custom Solutions: Our engineering team can tailor your helideck to meet specific requirements, whether it’s for a marine vessel or an offshore oil rig.
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Global Reach: With installations spanning continents, we have the capability to deliver and install our helicopter pads anywhere in the world.
Tough Decks for Tougher Conditions
Engineered for Offshore Challenges
- Anti-skid surfacing for optimum landing grip
- State-of-the-art lighting systems for enhanced visibility
- Integrated fire suppression systems for maximum safety
- Customizable dimensions to fit your specific operational needs
- Compliant with international standards like DNV, ABS, and RINA
We offer comprehensive, all-inclusive packages that go beyond just providing the helicopter pad. These encompass everything from support framing to installation services. With the capability to operate globally, we are your go-to source for turnkey helicopter landing pad solutions.
- Design
- Engineering
- Fabrication
- Manufacturing
- Installation
We offer comprehensive, all-inclusive packages that go beyond just providing the helicopter pad. These encompass everything from support framing to installation services. With the capability to operate globally, we are your go-to source for turnkey helideck solutions.
One of the standout features of our helicopter landing pad is their lightweight construction. Crafted from high-grade aluminum, our helidecks and heliports weigh significantly less than traditional steel counterparts. This reduced weight eases the load on rooftop structures and decreases overall shipping and installation costs, all while maintaining rigorous safety and durability standards.
Helideck Size, Helideck Design, and Helideck Dimensions
CAP 437 and HSAC Standards
CAP 437 - UK Civil Aviation Authority Standards
Touchdown and Lift-Off Area (TLOF)
- Dimension Calculation: The TLOF is usually sized based on the D-value, which is the overall length of the largest helicopter to use the helideck, including rotors turning.
- Safety Net: A safety net is often required around the perimeter of the TLOF to arrest the fall of personnel.
- Surface: The surface should be fire-resistant and capable of rapid water drainage. It should also be non-skid to prevent accidents. This can be accomplished via safe decks or fire suppression systems like a DIFF System.
Final Approach and Take-Off Area (FATO)
- Dimension Calculation: The FATO is generally larger than the TLOF and is also based on the D-value of the largest helicopter to use the helideck.
- Obstacle Clearance: CAP 437 has stringent requirements for obstacle clearance, including cranes, derricks, and other structures on the offshore platform.
- Markings: The FATO should be clearly marked, and the markings should be visible from a reasonable distance to aid in approach.
Additional Notes for Offshore Helidecks
- Helideck Monitoring System (HMS): CAP 437 recommends the use of an HMS to provide real-time weather and motion data.
- Lighting: CAP 437 has specific requirements for lighting, including the color and intensity of lights used to mark the TLOF and FATO.
- Firefighting Equipment: Specific types and quantities of firefighting equipment are required, including a foam monitor and hand-held extinguishers.
HSAC (Helideck Safety Advisory Committee) - Industry Best Practices
Touchdown and Lift-Off Area (TLOF)
- Dimension Calculation: Similar to other standards, the TLOF size is based on the D-value, which is the overall length of the largest helicopter expected to use the helideck.
- Surface Requirements: The surface should be non-slip and capable of rapid water drainage. HSAC also recommends the use of a deck-integrated fire-fighting system (DIFFS).
- Safety Measures: Additional safety measures like perimeter netting are often recommended.
Final Approach and Take-Off Area (FATO)
- Dimension Calculation: The FATO dimensions are generally based on the D-value plus additional space for safety and operational efficiency.
- Obstacle Clearance: HSAC places a strong emphasis on obstacle clearance, especially considering the dynamic conditions of offshore platforms.
- Markings and Lighting: HSAC recommends specific types of markings and lighting to aid in the approach and take-off phases.
Additional Notes for Offshore Helidecks
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- Environmental Monitoring: HSAC often recommends advanced environmental monitoring systems to provide real-time data on wind speed, wind direction, and other relevant factors.
- Emergency Systems: Recommendations often include specific types and quantities of firefighting and rescue equipment.
- Training: HSAC emphasizes the importance of regular training exercises for helideck crews, including firefighting and emergency response.
CAP 437 Recommended D-Values Based on Helicopter Type
| Helicopter Type | D-Value (m) | MTOM (kg) | 't' Value | Landing Net Size |
|---|---|---|---|---|
| Bolkow Bo 105D | 12.00 | 2400 | 2.4t | Not recommended |
| EC135 | 12.20 | 2980 | 3.0t | Not recommended |
| AW109 | 13.05 | 2600 | 2.6t | Small |
| BK 117/ EC145 | 13.63 | 3800 | 3.8t | Not recommended |
| Dauphin AS365 N2 | 13.68 | 4250 | 4.3t | Small |
| Dauphin AS365 N3 | 13.68 | 4300 | 4.3t | Small |
| EC155 | 14.30 | 4920 | 4.9t | Medium |
| AW169 | 14.65 | 4800 | 4.8t | Medium |
| Sikorsky S76 | 16.00 | 5307 | 5.3t | Medium |
| AW139 | 16.62 | 7000 | 7.0t | Medium |
| AW189 | 17.60 | 8600 | 8.6t | Medium |
| EC175 | 18.06 | 7800 | 7.8t | Medium |
| Super Puma AS332L | 18.70 | 8599 | 8.6t | Medium |
| Bell 214ST | 18.95 | 7938 | 7.9t | Medium |
| Super Puma | 19.50 | 9300 | 9.3t | Medium |
| EC225 | 19.50 | 11000 | 11.0t | Medium |
| Sikorsky S92A+ | 20.88 | 12565 | 12.6t | Large |
| Sikorsky S61N | 22.20 | 9298 | 9.3t | Large |
| AW101 | 22.80 | 15600 | 15.6t | Large |
Quality Helidecks
Choose Helidex For Your Offshore Marine and Oil & Gas Helideck Needs
At Helidex, we take pride in setting the industry standard for roof and hospital helipads. With our cutting-edge designs and superior engineering, we’ve transformed the helicopter pad market. Our helicopter helipads are more than just landing areas; they are a testament to our commitment to quality, safety, and customer satisfaction. Thank you for considering Helidex for your next project. Trust us to ensure quality for your helicopter landing pads.