The Derale 17" Race Fan Rigid Aluminium - 17517 is a high-performance cooling fan designed for applications that require maximum airflow and durability. 

Key Features:

• Maximum Full-Time Airflow: This fan is engineered to provide maximum airflow consistently across the entire RPM (Revolutions Per Minute) range. This is essential for maintaining optimal engine temperatures, especially in high-performance and racing scenarios.
• Rigid Aluminum Fan Blades: The fan features six aluminum fan blades. Aluminum is known for its lightweight and efficient heat dissipation properties, making it an excellent choice for high-performance cooling fans. These blades ensure effective air movement while remaining durable.
• Strong Steel Hub: The fan's steel hub is built to be robust and is finished with a durable black powder coat. This enhances the fan's longevity and resistance to corrosion, ensuring it can withstand the rigors of high-speed operation.
• Rated up to 8,000 RPM: The fan is rated for engine speeds of up to 8,000 RPM. This high RPM rating makes it suitable for high-performance racing applications, where engines often operate at elevated speeds.
• Standard Rotation Rigid Fan Design: The fan follows a standard rotation rigid design. This means it moves air in the same direction as the engine's rotation. This design is a perfect replacement for a fan clutch and traditional fan setup.

the Derale 17" Race Fan Rigid Aluminium - 17517 is a high-performance cooling fan designed for racing and high-performance applications. With its aluminum fan blades, strong steel hub, high RPM rating, and full-time airflow capabilities, it's a dependable choice for maintaining engine temperature and performance, making it a suitable replacement for traditional fan clutches and fans.