Whelen Engineering Company OR5001V Installation And Service Manual page 3

INTRODUCTION TO WHELEN ANTI-COLLISION STROBE LIGHTING
SYSTEMS, STC SA800EA/STC SA615EA/STC SA6NE/
STC SA21NE
Whelen's Anti-Collision Strobe Light Systems are approved under STC
SA615EA, STC SA800EA, STC SA6NE, and STC SA21NE, manufactured under
PMA as an approved anti-collision light for all aircraft, when installation is
accomplished in accordance with the following instructions.
Whelen's Anti-Collision Strobe Light Systems are designed and approved spe-
cifically for General Aviation Aircraft, to comply to FAR 91.205(c) (3) (visual
flight rule night) requirements.
Whelen's approved Anti-Collision Strobe Light Systems can be installed on all
aircraft by completing the installation with reference to this Installation and
Service Manual, and the appropriate technical data listed below:
ADVISORY CIRCULAR 43.13-1A, Chapter 11, Sections 1, 2, 3 and 7,
Electrical Systems.
ADVISORY CIRCULAR 43.13-2A, Chapters 1 and 2, Radio Installations.
ADVISORY CIRCULAR 43.13-2A, Chapter 4, Anti-Collision Light Installations.
ADVISORY CIRCULAR 20.21, 12-3-64, Application of Glass Fiber
Laminates in Aircraft.
ANTI-COLLISION AND POSITION LIGHT REQUIREMENTS,
LOCATIONS, & DISTRIBUTION PATTERNS
All aircraft must have an approved anti-collision light and position light system
for nighttime operations. The position lights consist of an Aviation Red on the
left side, an Aviation Green on the right, and an Aviation White taillight (REF. FAR
23.1389).
The anti-collision lighting system is required under FAR PART 91.205(c)(3).
There are different requirements affecting different aircraft. These aircraft are
categorized by the date of application for type certificate. Home built aircraft are
determined by the date of issuance of the Experimental Operating Limitations.
The different categories are as follows:
Aircraft for which type certificate was applied for after April 1, 1957 to
August 10, 1971:
These anti-collision systems must produce a minimum of 100 effective candela
in Aviation Red or White (REF. FAR 23.1397), 360º around the aircraft's vertical
axis, 30º above and below the horizontal plane (REF. FAR 23.1401).
Aircraft for which type certificate was applied for after August 11, 1971 to
July 18, 1977:
These anti-collision systems must produce a minimum of 400 effective candela
in Aviation Red or White (REF. FAR 23.1397), 360º around the aircraft's vertical
axis, 30º above and below the horizontal plane (REF. FAR 23.1401).
Aircraft for which type certificate was applied for after July 18, 1977:
These anti-collision systems must produce a minimum of 400 effective candela
in Aviation Red or White (REF. FAR 23.1397), 360º around the aircraft's vertical
axis, 75º above and below the horizontal plane (REF. FAR 23.1401).
*The position lights must be wired independently of anti-collision lights.
GENERAL AVIATION MINIMUM POSITION LIGHTING
REQUIREMENTS
For compliance to FAR Part 23.1385 through 23.1397, VFR flight rule night
requirements on a General Aviation aircraft, you must have a TSO'd Aviation Red
forward position light on the left and an Aviation Green forward position light on
the right. See Figure 7, page 4.
These are normally mounted on the most outward extremity of the airframe so
they can project their light directly in front of the aircraft 0 degree to 110
degrees left and right horizontally, and 180 degrees up and down vertically,
unobstructed by any part of the aircraft.
The tail position light must project its Aviation White light toward the rear of the
aircraft, 70 degrees horizontally left and right from 0 degree straight back
behind the aircraft, 180 degrees up and down, 0.04 Steradian (131.36 sq.
degrees) interference is allowable, reference FAR Part 23.1387(c). More than
one light is acceptable.
© 2015 Whelen Engineering Company, Inc.
The document reference is online, please check the correspondence between the online documentation and the printed version.
POSITION LIGHTS AND ANTI-COLLISION LIGHT
DISTRIBUTION PATTERNS REQUIREMENTS
º
360
An approved anti-collision An approved anti-collision
strobe light system must proj- strobe light system must proj-
ect light 360° around the air- ect light + or - 30° above and
craft's vertical axis. One or below the horizontal plane of
more strobe lights can be used. the aircraft. One or more strobe
lights can be used. The + or -
75° projected light is required
since July 18, 1977.
Approved light pattern in
the horizontal plane.
The anti-collision
Position
wingtip mounted lights
Red
must converge within
110
1200 feet directly in
front and rear of the
Tail
aircraft on center line.
Position
If the wingtip strobe
White
light convergence is
greater than 1200 ft. in
back of the aircraft,
a 3rd light is necessary.
LOCATIONS ON THE AIRCRAFT FOR
ANTI-COLLISION STROBE LIGHTS, TO COMPLY
TO THE LIGHT PATTERN REQUIREMENTS.
VERTICAL FIN
One anti-collision strobe light
mounted on the vertical fin will
meet the minimum require-
ments on most aircraft. A half
red and half white lens is re-
commended.
ENCLOSED WINGTIP
Enclosed wingtip anti-collision
strobe lights, require a third
strobe light on the tail or verti-
cal fin, to fill in the required
light envelope. This is an
approved anti-collision sys-
tem.
º
+
75
º
+ 30
+ º
30
- º - 30 º
30
- º
75
º
0
Position
Green
º 110º
Tail
Position
White
º
180
70º º
70
WINGTIP
Two wingtip strobe lights that
protrude beyond the wingtip,
their light converging in front
and back of the aircraft within
1200 ft. is an approved anti-
collision strobe light system.
FUSELAGE
In a fuselage mounted anti-
collision strobe light system, a
minimum of two strobe lights
are necessary to get the
required vertical coverage.
This is an approved anti-colli-
sion system.
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Document #05131 Rev. D