Substantiation of Power Available and Inlet Distortion Compliance for Rotorcraft Inlet Barrier Filter Installations

Scope:

This Aerospace Recommended Practice (ARP) identifies and defines methods of compliance to power available and inlet distortion requirements for rotorcraft with Inlet Barrier Filter (IBF) installations. The advisory material developed therein may be used as acceptable methods of compliance for determining power assurance, establishing power available, and for substantiating acceptable engine inlet distortion for IBF installations. It is agreed to treat dust, ice, salt water & snow as contaminants to IBF for the purpose of establishing power available and distortion. Flight in known icing will be addressed in ARP6901.

Rationale:

This SAE Aerospace Recommended Practice is intended to safely improve the efficiency and expedite the certification process for the installation of inlet barrier filters on rotorcraft.

AKA:
  • SAE ARP 6912
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