SAE ARP5825 Design Requirements and Test Procedures for Dual Mode Exterior Lights

SCOPE:

This SAE Aerospace Recommended Practice (ARP) contains the general requirements and test procedures for Dual Mode (NVIS Friendly visible and Covert) exterior lighting for most rotorcraft and fixed wing aircraft and could be applicable to ground vehicles that desire a Dual Mode lighting system.

Purpose:

This document is to define both the basic NVIS Friendly limits for visible exterior lights and the radiance limits for the covert energy sources. In addition, this document will define the test methods and equipment necessary in verifying the measurements.

Limitations:

This document includes and updates the traditional requirements that cover normal visible exterior lighting and integrate them with Dual Mode exterior lighting design and testing concepts. This document will not attempt to define the environmental qualification, reliability requirements or any of the other tests required that are normally contained in procurement specifications or readily found in other technical documentation. The primary focus of this document is for fixed wing aircraft, but other air frames or ground vehicles can use many of the technical requirements.

Field of Application:

This document defines three classes of tests. Each test is applicable to the different phases of a products life: for example, engineering development and qualification (CLASS 1), production/quality assurance (CLASS 2), and field service maintenance or flight readiness (CLASS 3). The test requirements for each of these phases differ and hence the test procedures for each test class may differ. Each procedure in this document is CLASS 1 unless otherwise stated.

Classes of Tests:

CLASS 1- Laboratory Tests – The objective of tests in this class is to verify the design of the assembly. Tests in this class are most appropriate in an engineering laboratory environment or as part of a certification program.

CLASS 2- Production/Quality Assurance – The objective of this test class is to verify that every assembly has been manufactured or repaired to meet specified requirements.
Tests in this class are most appropriate for acceptance and/or end item tests.

CLASS 3- Maintenance/Flight Readiness – The objective of tests in this class is to verify that the assembly is within acceptable performance limits. Tests in this class are most appropriate for field service maintenance and flight line inspection.

LISUN following instruments fully meet SAE ARP5825 Design Requirements and Test Procedures for Dual Mode Exterior Lights

LSG-1890B High Precision Rotation Luminaire Goniophotometer

LPCE-3 CCD Spectroradiometer Integrating Sphere Compact System

LPCE-2(LMS-9000) High Precision Spectroradiometer Integrating Sphere System