Heligrid Landing Platform

The Cramm helicopter landing grid system, combined with a harpoon rapid securing system, aims to secure a helicopter to the flight deck immediately on touchdown by engaging and locking the helicopter harpoon on to a landing grid in the flight deck.

Satisfying the most stringent NATO Stanag 1276 requirements, the system can be used for various types of helicopters, including defence and rescue helicopters. It prevents movement of the helicopter on the flight deck under the influence of large waves and strong side winds, and allows the helicopter to land and take off safely while at sea.

Heligrid is produced by Cramm HLS, sister company of Cramm Yachting Systems, the global market leader in the design, development and construction of mechanical products and hydraulic equipment for the mega yacht industry. Cramm HLS makes life very easy for clients by realizing the complete trajectory from design and production to installation and commissioning.

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Applicable markets

Our helicopter landing grid allows helicopters or unmanned aerial vehicles (UAVs) fitted with a harpoon to land or take off from a helideck in fully safe conditions, without assistance even in rough seas and bad weather. The advantages of Heligrid are that it can be installed on almost every new or existing vessel, platform or building. Being practically maintenance free, Heligrid offers low ownership costs. With Heligrid, Cramm is offering a turnkey solution, customised to any requirements set by our clients, either safety-wise or architecture-wise and regardless as to whether it is to be used on sea or on land.

Safe distance in seconds

The pilot can start up while the harpoon is still latched on to the helicopter landing grid. The pilot will then ensure that the helicopter has sufficient take-off power to create tension between the helicopter and the landing grid. At the last moment, the pilot uses the cockpit control to disconnect the harpoon from the landing grid. This allows the pilot to immediately reach a safe distance from the vessel; a major contribution to safety, especially in rough weather conditions.

Landing Platforms

Using past experience and developments and following today’s requirements, we have developed various types of helicopter landing grids:

HLS 3 (MTOW: 3,000 kg)
HLS 6 (MTOW: 6,000 kg)
HLS 10 (MTOW: 10,000 kg)
HLS-HD (Heavy Duty)
Drones
Specials

Specials consist of different sizes and shapes, such as small grids for testing facilities and different forms/shapes associated with limitations to the various flight deck constructions. Depending on the helicopter’s take-off weight, the maximum desired tensile strength and propelling force, we can determine which Heligrid is best suited to your vessel, platform or building.

Automatic Harpoon System

The pilot can land on the Heligrid in the same way as on land. When landing, the harpoon automatically latches on to the helicopter landing grid. The helicopter is then pulled towards the deck before being locked on to the helicopter deck.

In this fixed position, the helicopter follows the movement of the vessel without the risk of sliding or toppling. The pilot can now safely shut down and leave the helicopter together with all passengers.

Looking for more information or for all our possibilities

Design

Our design is based on the characteristics of NATO STANAG 1276, with adjustments for specific requirements. Safety is the most important value in the Heligrid design and construction. The landing grid is constructed from a thick, round stainless steel grid plate with a high tensile strength and foundation. The top plate and the foundation of the Heligrid are linked to each other via mounting bolts. The bolts are mounted on the outside of the grid’s top plate. The design is approved for movements of 30 degrees and static usage up to wind speeds of 50 knots–65 knots without using chains.

Quality based

Cramm is the authority on all matters relating to the safe and compliant operation of helicopter landing areas – onshore, offshore and during sailing. We use all our expertise, know-how and high-quality materials to fully meet and satisfy the demands of our clients. Our motivated employees and highly qualified technical staff play a key role in delivering the superior products and optimal service for which Cramm is renowned.

REFERENCES

Motor Yacht Idynasty

Working with Cramm over the last 3 years has been a pleasure. Cramm equipment is built to a very high standard, and unlike some bespoke equipment found on yachts, has proven to be very reliable. The installation of Cramm equipment has been carried out by experienced technicians with maintenance in mind for access to serviceable components.

Cramms service engineers are extremely knowledgeable of their systems, routine service visits incorporate thorougher inspections of equipment, often detecting potential problems before they occur. Cramms service engineers are always very careful with keeping clean and not making a mess. Working areas are always very well protected before work commences, and left as found. I would definitely recommend Cramm for hydraulic equipment as one of the leading company’s in the industry.

Martin Thomas

2nd Engineer

Royal Huisman BV

For me it is a big advantage that our companies are relatively close to each other. This makes the verbal communication much more efficient. Short lines often work better. So also the follow up of appointments and agreements work well is my experience. What I also notice about Cramm is that in principle everything is negotiable in a good way, as well the somehow bigger challenges. Cramm is a beautiful Dutch company to work together with.

Pieter Smit

Planner / Work preparation

Motor Yacht Castellina

I would like to take the time to thank you for the recent visit from a Cramm engineer. It was great to get him back onboard after 16 years to see how the system is now functioning. We found him to be extremely helpful and carried out the assessment with great care and was very thorough.

With the system still functioning well after 16 years of hard service we are certainly going to stick with you, for our up and coming major refit next year, you certainly have our trust! With your revolutionary designs, great service, great build quality and dedicated professional engineers, I would be happy to recommend your services to anyone looking for a first class service.

Tim Cooter

Captain

Motor Yacht Blade

Over the past years Cramm has done several projects on board M/Y BLADE. No matter how big or small, each project was completed to a high standard. Cramm’s service has always been transparent, friendly, efficient and neat. Their knowledgeable engineers are always willing to go the extra mile and their aftercare never disappoints. All in all we’re extremely happy with the service Cramm has provided us with over the years and we’ll continue to use them.