8/6/2019 Anti Collision Systems

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    L      E        F       T

      W           I      N      G       T

                       I      P    S     T    R   O   B  E

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E     Q    U    

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T   H  I  R D T AIL S  T  R  O  B

   EC   O     V    E     R      A

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Position

Green

110º

Position

Red

110º

Tail

PositionWhite

70º

Tail

PositionWhite70º

0º

180º

360º

-75º-30º -30

º

75+ º30+ º 30+ º

ANTI-COLLISION AND POSITION LIGHT REQUIRE-MENTS, LOCATIONS, & DISTRIBUTION PATTERNSAll aircraft must have an approved anti-collision light and position lightsystem for nighttime operations. The position lights consist of anAviation Red on the left side, an Aviation Green on the right and anAviation White taillight (REF. FAR 23.1389).The anti-collision lighting system is required under FAR PART91.205(c). There are different requirements affecting different aircraft.These aircraft are categorized by the date of application for type cer-tificate. Home built aircraft are determined by the date of issuance ofthe Experimental Operating Limitations. The different categories are as

follows:Aircraft for which type certificate was applied for afterApril 1, 1957 to August 10, 1971:These anti-collision systems must produce a minimum of 100 effec-tive candela in Aviation Red or White (REF. FAR 23.1397), 360º aroundthe aircraft’s vertical axis, 30º above and below the horizontal plane(REF. FAR 23.1401).

Aircraft for which type certificate was applied for afterAugust 11, 1971 to July 18, 1977:These anti-collision systems must produce a minimum of 400 effec-tive candela in Aviation Red or White (REF. FAR 23.1397), 360º aroundthe aircraft’s vertical axis, 30º above and below the horizontal plane(REF. FAR 23.1401).

Aircraft for which type certificate was applied for afterJuly 18, 1977:

These anti-collision systems must produce a minimum of 400 effec-tive candela in Aviation Red or White (REF. FAR 23.1397), 360º aroundthe aircraft’s vertical axis, 75º above and below the horizontal plane(REF. FAR 23.1401).Note: The position lights must be wired independently of anti-collision lights.

VERTICAL FINOne anti-collision strobe lightmounted on the vertical fin willmeet the minimum require-ments on most aircraft. A halfred and half white lens is rec-ommended.

WING TIPTwo wing tip strobe lights thatprotrude beyond the wing tip,their light converging in frontand back of the aircraft within1200 ft. is an approved anti-collision strobe light system.

ENCLOSED WING TIPEnclosed wing tip anti-collisionstrobe lights, require a thirdstrobe light on the tail or verti-cal fin, to fill in the requiredlight envelope. This is anapproved anti-collision system.

FUSELAGEIn a fuselage mounted anti-col-lision strobe light system, aminimum of two strobe lightsare necessary to get therequired vertical coverage.This is an approved anti-colli-sion system.

An approved anti-collisionstrobe light system must proj-ect light 360° around the air-craft’s vertical axis. One ormore strobe lights can beused.

An approved anti-collisionstrobe light system must proj-ect light + or - 30° above andbelow the horizontal plane ofthe aircraft. One or morestrobe lights can be used. The+ or - 75° projected light isrequired since July 18, 1977.

Approved light pattern inthe horizontal plane.The anti-collisionwing tip mounted lightsmust converge within1200 feet directly infront and rear of theaircraft on center line.If the wing tip strobelight convergence isgreater than 1200 ft. inback of the aircraft,a 3rd light is necessary.

LOCATIONS ON THE AIRCRAFT FORANTI-COLLISION STROBE LIGHTS, TO COMPLY

TO THE LIGHT PATTERN REQUIREMENTS

POSITION LIGHTS AND ANTI-COLLISION LIGHTDISTRIBUTION PATTERNS REQUIREMENTS

INSTALLATION LOCATIONSWING TIP:The major difference in systems is the location of the strobe powersupplies which can be mounted locally, one in each wing tip, or a sin-gle power supply can be mounted in the fuselage. Installation time canbe greatly reduced if done in conjunction with an annual or one hun-dred-hour inspection. Properly installed power supplies and cabling

are necessary for the safe operation of Whelen or any light systems.FUSELAGE:Fuselage mounted units can be either self-contained with the powersupply and light head as one unit, or remote light heads run off a sep-arate power supply. To meet the field of coverage, one must be on thetop of the fuselage and one on the bottom.

VERTICAL FIN:Finally, if applicable, a single anti-collision light can be mounted on thevertical stabilizer. It can be either a self-contained or remote light headdepending on the aircraft.

NOTE: All non-FAA approved parts in this catalog are signified by a(—) in the approval column. Parts without FAA approval may still bepurchased, however, installation of these parts on U. S. TypeCertificated products may require additional FAA approvals.