Aircraft Chocks Specifications
Aircraft wheel chocks are safety-critical components used to secure parked aircraft. Correct material selection is essential to ensure sufficient grip, durability and predictable performance under operational loads.
Why material choice matters for aircraft wheel chocks
Aircraft chocks must prevent unintended aircraft movement while maintaining stable contact with both the tire and the ground surface. Materials that are too rigid can slip or damage tires, while materials with insufficient strength may deform or fail under load.
Why rubber is used for aircraft chocks
Rubber is widely used for aircraft wheel chocks because it combines high friction with controlled flexibility. This allows the chock to conform slightly to the tire and surface, improving contact stability and reducing the risk of movement.
Compared to plastic or rigid alternatives, rubber aircraft chocks are less prone to cracking, splintering or brittle failure, even during prolonged outdoor use.
Why SBR rubber is commonly used
SBR (Styrene-Butadiene Rubber) is commonly selected for aircraft wheel chocks due to its balanced mechanical properties. It provides reliable grip, good abrasion resistance and sufficient elasticity for repeated loading cycles.
These characteristics make SBR rubber suitable for use on concrete, asphalt and hangar floors in professional aviation environments.
Aircraft wheel chock performance characteristics
| Property | Performance |
| Grip on surface | High friction on common aviation surfaces |
| Durability | Designed for repeated operational use |
| Weather resistance | Resistant to rain, UV exposure and temperature variation |
| Shock absorption | Reduces impact forces on aircraft tires |
| Maintenance | Low maintenance, no corrosion or splintering |
Standard and custom aircraft wheel chocks
Aircraft wheel chocks are available in standard sizes as well as custom configurations to meet specific aircraft, operational or dimensional requirements.
The full range of available aircraft wheel chocks can be found on our aircraft wheel chocks collection.