LED Anti-Collision Lighting System for Airbus A320 Family Leds Established in Anti-Collision Lighting
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LED Anti-Collision Lighting System for Airbus A320 Family LEDs established in anti-collision lighting For the first time, UTC LEDs supersede flash tubes Particular design challenge Aerospace Systems has With the development of LED Long before the launch of the implemented state-of- anti-collision lighting, UTC A320neo, Airbus’ customers the-art LED technology Aerospace Systems is replacing had the opportunity to choose its Xenon flash tube products either the conventional or the into an anti-collision that have been successfully new fuel saving sharklet wing lighting system (beacon operating on the A320 aircraft tips for their aircraft. and strobe lights). family for decades. Regarding the sharklets, UTC It is part of the new FAR requirements Aerospace Systems’ lighting design engineers faced a LED exterior lighting To fulfill the Federal Aviation number of particular challenges. equipment for the Airbus Regulation (FAR) requirements, A320 aircraft family. the anti-collision lighting system For example, the optical design must create a flash rate of of the beacon light had to between 40 and 100 flashes compensate for the shadows While beacon lights per minute at 360° around the of the engines and sharklets. utilizing LED technology aircraft’s vertical axis and also Additionally, the special have been part of the cover an area within 75° above architecture of the sharklets also UTC Aerospace Systems and below the horizontal plane. required a totally new design of the wing strobe lights. product portfolio for In overlapping areas, not more than 180 flashes per minute years, the company Also available are a set of wing are permitted. The minimum strobe lights and power supplies is now able to offer the effective intensity is 400 that were designed to be first LED wing strobe candelas along the aircraft’s installed in conventional wing lights for a medium- horizontal plane. Each anti- tips. collision light must be Aviation range commercial Red or White – depending on Retrofit options aviation aircraft. the location of the units. With the new LED exterior Furthermore, the new lighting system, UTC Aerospace Two redundant systems rearward strobe and Systems also offers retrofit Airbus equips all of its aircraft navigation light is the options for A320ceo family with two independent anti- aircraft that are already first combined LED collision lighting systems. Each in operation. device that can system is designed to fulfill the withstand the extreme respective FAR requirements: Equipped for the future the red fuselage mounted upper Advantages of the new LED high temperature and lower beacon lights and the system include weight and con ditions located white wing and tail strobe lights. power savings, longer lifetime, This not only significantly directly beneath the higher reliability and significantly increases visibility during APU exhaust outlet. reduced maintenance effort in ground and flight operations, comparison to the previous one system can also serve as a anti-collision lighting. back-up system for the other in case of failure. Entire exterior lighting system for Airbus A320 aircraft family can be equipped with state-of-the-art LED technology The Airbus A320 is the first medium-range commercial aviation aircraft featuring an exterior lighting system completely designed in state-of-the-art LED technology. Delivering 17 out of the 21 different newly developed exterior lighting devices, UTC Aerospace Systems significantly contributes to this milestone in aviation history. The LED exterior lights come standard on the new A320neo. One year before its entry into service, the currently built A320ceo aircraft can already be equipped with the new system. 2 Be seen – be safe Redundant configuration of white and red anti-collision lighting systems LED Rearward Navigation LED Beacon Light (red) and Strobe Light (white) 2LA455968-01 2LA456241-00 Power Supply Base Plate Assy 9BP417109-00 8ES455967-01/-20 Power Supply 8ES456222-01 LED Wing Strobe Lights LED Beacon Light (red) for Sharklets (white) 2LA455968-01 2LA456509-02 (LH) Power Supply 2LA456510-02 (RH) 8ES455967-01/-20 2 Power Supplies 8ES456513-01 Flashing sequences and synchronization Beacon Lights RED Wing Strobe Lights WHITE Tail Strobe Light WHITE t 0 0.2 0.5 1 1.2 1.5 2 2.2 2.5 3 3.2 3.5 sec 3 LED Beacon Light | 2LA455968-01 One red LED beacon light To increase the lifetime of the 2LA455968-01 is installed on LEDs, this beacon light top of the fuselage and one at features a thermal management the bottom of the A320 family design which actively adjusts aircraft. The aero-dynamic the operating current depending shape of the highly resistant on the environmental glass cover reduces the drag temperature. The beacon light’s load significantly in comparison flash pattern changes from a to other designs. single to a double flash when To ensure the coverage of the LEDs reach nearly-end- the light distribution sphere of-life status. This indication is meets the requirements of FAR visible from the ground. § 25.1401, UTC Aerospace The new LED beacon light also Systems’ design engineers de- features integrated lightning veloped a special optical design. protection. It is also The elaborate LED configuration interchangeable with the avoids shadowing by the previous flash tube unit and fits engines and the 2.5 meters tall into the existing interface. sharklet wing tips of the A320. Technical Data: • Energy per Flash: 35 J max. • Pulse Duration: 20 ms – 200 ms (20 ms when dimmed by Power Supply) • Light Color: Aviation Red in compliance with FAR § 25.1397 • Light Intensity: in compliance with FAR § 25.1401 • Light Distribution: in compliance with FAR § 25.1401 (horizontal: 360°; vertical: 0° to ±75°) • Flash Rate: 45 ± 2 flashes/minute or 55 ± 5 flashes/minute depending on Power Supply • Lifetime of LEDs: approx. 20,000 operating hours • Nearly-end-of-life indication: change of flash pattern • Weight: 1.10 kg/2.43 lbs max. 4 Power Supply | 8ES455967-01/-20 for LED Beacon Light One power supply 8ES455967- while all other power supplies 01 provides the necessary flash operate as slaves. In the event energy for each LED beacon the signal from the master is light 2LA455968-01. Energy not available, all power supplies is stored in maintenance-free automatically switch to an un- capacitors to ensure low emis- synchronized free running mode. sions on the electrical network. This power supply features an The power supply is connected input for external dimming of the to the aircraft’s single phase beacon light to a light intensity 115 V 400 Hz power network. level of 15 percent. Dimming Compared to the previous the beacon lights during ground system, the power consumption operation prevents airport is reduced by 70 percent. personnel from being blinded. To synchronize the red and whi- The -20 variant consists of te anti-collision lighting systems the -01 power supply and and to ensure that they flash the adaptor plate assy within the specified pattern, the 9AB416701-02. It is mechani- power supply of the upper bea- cally fully interchangeable with 8ES455967-01 con light operates as a master the previous unit. Technical Data: 8ES455967-01 • Operating Voltage: 115 Vrms/360 to 800 Hz • Nominal Frequency: 400 Hz • Operating Current Nominal: 390 mArms max. (t > 30 s) Inrush Peak: 2.75 A max. (t < 20 ms) No Load: 200 mArms max. • Power Consumption Apparent Power: 45 VA max. Active Power: 40 W max. • Output Channel Energy per Flash: 35 J max. Pulse Duration: 200 ms ± 5 ms Dimmability: 15 % ± 1 % of output pulse width • Flash Rate PIN 2 115 V AC: 55 ± 5 flashes/minute PIN 2 Gnd/open: 45 ± 2 flashes/minute • Flash Mode: synchronized/free running • Lifetime: approx. 66,000 operating hours • Weight: -01: 1.20 kg/2.65 lbs max. -20: 1.40 kg/3.08 lbs max. 8ES455967-20 5 LED Wing Strobe Lights | 2LA456509-02 and 510-02 for Sharklet Wing Tips While the newly designed, fuel A blue LED in the strobe light saving sharklets will totally head facing downwards and replace the conventional wing visible from the ground will show tips on the new Airbus A320neo nearly-end-of-life status. It can launched in 2015, customers be checked while the strobe may already choose them as light is not operating. an option for all currently built The LED wing strobe lights A320ceo family aircraft. 2LA456509-02 (LH) and Further more, Airbus offers them 2LA456510-02 (RH) are as a retrofit opportunity for A320 installed behind glass that is family of aircraft built from 2011. integrated into the front edge UTC Aerospace Systems’ design bend of the sharklet. engineers not only developed the Combined with the rearward world’s first wing strobe light strobe light 2LA456241-00 in LED technology, they also (or its Xenon flash tube mastered the various challenges predecessor), a set of these associated with the special wing strobe lights fulfills the architecture and vibration loads FAR § 25.1401 requirements 2LA456510-02 and 509-02 of the 2.5 metres tall sharklets. as a system. Technical Data: 2LA456509-02 (LH) • Energy per Flash: 30 J max. • Pulse Duration: 160 ms ± 30 • Pulse Shape: double flash 50 ms on – 60 ms off – 50 ms on • Flash Rate: 60 ± 5 flashes/minute • Light Color: Aviation White in compliance with FAR § 25.1397 • Light Intensity: in compliance with FAR § 25.1401 • Light Distribution: in compliance with FAR § 25.1401 as system in combination with rearward strobe and navigation light 2LA456241-00 • Lifetime of LEDs: approx. 20,000 operating hours • Nearly-end-of-life indication: blue LEDs • Weight: 0.5 kg/1.1 lbs max. 6 Power Supply | 8ES456513-01 for Sharklet LED Wing Strobe Light Each LED wing strobe light This power supply works as a 2LA456509-02 and 510-02 is slave to the power supply of the operated by one power supply upper beacon light to achieve 8ES456513-01.