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Aircraft Lighting Systems

Aircraft Lighting Systems. Group 5 Alex Simpson Mark Gabbard 19 September 2006. Overview. Exterior Lighting Interior Lighting Emergency Lighting. Exterior Lighting. Specifically regulated by FAR Requires several systems for transport category aircraft Landing lights (FAR 25.1383)

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Aircraft Lighting Systems

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  1. Aircraft Lighting Systems Group 5 Alex Simpson Mark Gabbard 19 September 2006

  2. Overview • Exterior Lighting • Interior Lighting • Emergency Lighting

  3. Exterior Lighting • Specifically regulated by FAR • Requires several systems for transport category aircraft • Landing lights (FAR 25.1383) • Position lights (FAR 25.1385-95) • Anti-collision lights (FAR 25.1401)

  4. Exterior Lighting Anti-collision lights Landing lights Position lights C-130 from www.af.mil

  5. Landing Lights • Light for night landing • On wing leading edge or landing gear • 28V DC or 115V AC • 600W • Taxi lights, 250W Boeing 757 from www.pbase.com/airlinerphotos /aviation_night

  6. Position Lights • Also called Navigation lights • Red on left wingtip • Green on right • White on tail • 28V DC or 115 V AC http://www.aopa.org/online_gallery/

  7. Anti-Collision Lights • Red or white flashing • 40-100 cycles per min • Must illuminate the vital areas • Red beacon on vertical tail • White strobes on wingtips • Strobes or beacons on top and bottom of fuselage

  8. Other exterior lights • Cargo loading lights • Wing icing detection lights (required) • Cannot cause glare or reflection that impairs crew (FAR 25.1403) C-17 from www.af.mil

  9. Interior Lighting • Cockpit lighting • Instrument lighting • Cabin lighting

  10. Cockpit Lighting • Instrument lighting • Must illuminate each essential instrument and switch • Direct rays must be shielded from pilot’s eyes • Must provide dimming control A340 cockpit from www.mmlane.com/flying/

  11. Cockpit Lighting • Interior lights to allow crew to perform other functions • Not regulated • Often red to preserve night vision 767 Cockpit from www.boeing.com

  12. Cabin Lights • Varies significantly by aircraft type and purpose • Usually overhead fluorescent lights • 28 volts DC 767 cabin from www.boeing.com

  13. Emergency Lighting • Required by FAR 25.812 • Must include exit marking signs, general cabin illumination, floor escape path lighting, and exterior emergency lighting • Must be battery powered and separate from main electrical system

  14. Conclusion • Exterior Lighting • Interior Lighting • Emergency Lighting

  15. References • Federal Aviation Regulations http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgFAR.nsf • Pallett, E. H. J. Aircraft Electrical Systems. Longman Scientific & Technical. 1987. • Eisman, T. K. et.al. Aircraft Electricity and Electronics. McGraw-Hill. 1989.

  16. QUESTIONS?

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