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Predicting Photometric Degradation of Exterior Aircraft Lights
- Aerospace Standard
- ARP6621
- Issued
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This Aerospace Recommended Practice provides guidance for designers and specifiers of aircraft exterior lighting. Typical causes of light degradation and methods of predicting performance degradation in the aircraft environment are given. Although the document considers only exterior lighting, many of the principles and methods discussed apply to interior or flight deck lighting as well.
Rationale
This document provides guidance in predicting light output degradation of exterior aircraft lighting so that designers can predict the usable life of aircraft lights and ensure that they meet specified performance levels throughout their lifetime.
Topic
Data Sets - Support Documents
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| Table 1 | Example LM-80 data set | |
| Table 2 | Example time versus temperature table | |
| Table 3 | Piecewise life versus temperature calculation |
Issuing Committee
A-20B Exterior Lighting Committee
The purpose of the A-20 Aircraft Lighting Committee is to provide a forum for the development of aerospace standards in aircraft lighting that will fulfill the needs and requirements of operation control and utility. The scope includes both interior and exterior lighting.
A list of the technical reports developed by the A-20 Committee can be obtained by searching on 'aircraft lighting' and selecting 'standards', from the SAE Home Page. A-20 StandardsReference
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