The Helideck Friction Test is a procedure conducted to assess the friction characteristics of a helipad or helideck’s surface. The friction of the helideck surface is crucial for safe helicopter operations, especially during landing and takeoff, as it affects the helicopter’s ability to maintain proper traction and control. The test aims to determine the coefficient of friction between the helideck surface and the helicopter’s landing gear or skids. Preparation: Ensure that the helideck surface is clean and free from any debris, oil, or contaminants that could affect the test results. The helicopter used for the test should be properly maintained, and its landing gear or skids should also be clean. Equipment: In compliance with CAP437 requirements, we currently use the FINDLAY IRVINE Micro Grip Tester. This grip tester measures friction by the braked wheel, fixed slip principle, and is equipped with sensors that measure the frictional force between the device and the helideck surface. Test Procedure: The coefficient of friction is a dimensionless value that indicates the relationship between the frictional force and the normal force (weight) exerted on the surface. It provides insights into the surface’s slip resistance. The calculated coefficient of friction is compared to established safety standards and guidelines to ensure that the helideck surface provides sufficient traction for safe helicopter operations. Maintenance and Remediation: If the test results indicate that the coefficient of friction is below acceptable levels, maintenance or remediation measures might be necessary. It is good practice that Helideck friction tests are conducted regularly, to monitor the condition of the helideck surface and ensure ongoing safety for helicopter operations. It is also important to note that safety regulations, testing procedures, and equipment might vary depending on the aviation authority, country, and specific helideck’s requirements. The goal of these tests is to maintain a safe environment for helicopter operations, minimizing the risk of accidents due to inadequate traction or control on the helideck surface. We are available to provide cost effective helideck solutions for you AND
Here’s an overview of our helideck friction test process
As the device is slowly pushed over the surface to be surveyed, the dynamic friction reading is automatically calculated and stored, as well as other parameters such as speed, distance travelled, water flow, GPS readings and ambient temperatures.
The data collected during the test is then used to calculate the coefficient of friction.
Cleaning, resurfacing, or applying anti-skid materials are common methods to improve the friction characteristics of the helideck surface.
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