NAVAIR 01.Fl4AAD-1
cation will result if the transition is not complete within
23 seconds.F requentF WD-VERT switching can cause
the mechanical drive to overheat and seize, resulting in
a mount fail. The mount will automatically move to
vertical when the SYSTEM switch is at RDY and the
FUME switch is turned OFF, or if the landing gear
handle is moved to DN.
The KS-87D can be reloaded or replaced in approximately
10 minutes and with the aircraft’s engines tuming,
if necessary.
Figure 22-14 summarizes some specific characteristics
and information on the KS-87D serial frame
camera.
22.7.3 Panoramic Camera. The KA-99A is a 9-
inch focal length, U4.0 lens panoramic camera that provides
highquality, medium- to low-altitude imagery.
Located in bay 2, the KA-59A offers tit11 horizon-tohorizon
imagery with 55-percent overlap up to a maximum
of 1.06 Vg/H (8 cps). When external fuel tanks are
installed, the field of view is reduced about 25” on the
right and 17O on the left. The film cassette will hold a
maximum of 2,000 feet of film. A single exposure
measures4 .5 X 28 inches,a nd a datac odeb lock appears
between each frame. The camera will indicate FALL
when the film load is down to approximately 40 exposures,
preventing the film bitter end from going through
the high-speed drive gears and causing camera damage.
The KA-99A will automatically focus down to approximately
500 feet butwill revert to a focus altitude of 6,000
feet if the TARPS program fails to input and there is no
manual input of V/H t?om the CPS.
The RIO may select CTR, LEFT, or RIGHT for the
KA-99A on the CPS. When LEFT or RIGHT is selected,
the camera uses only the light sensor on the side selected
instead of averaging the two as it does when CTR is
selected, in addition, the cycle rate and FMC are based
on the slant range distance from aircrafl to the ground at
a 30° depressiona ngle. To avoid degradedi magery, do
not use LEFT or RIGHT settings below 1,500-foot altitude.
The KA-99A can be set for air to air (focus on
Focal length 6 inches
Diaphragm range f 2.8 to 6.7
Field of view 41” x41”
Negative Format 4.5 x 4.5 inches
VglH Range+ 0.01 to 1.18
Maximum Cycle Rate 6 cycles per second
Effective Shutter Speeds l/60 to l/3,000
Filters Yellow, red, or none
Angle of View Vertical or Forward (16” below horizon)
Hyperfocal Distance** 1339 feet (fixed focus)
tVg/H is listed as a knots per foot of altitude ratio (computed for vertical camera position only). The
DDS is capable of generating a maximum of 1.42 Vg/H.
**The hyperfocal distance is the distance from the optical center of the lens to the nearest point of
acceptable sharp focus, when focused at infinity. The sensor may be effectively used well below the
hyperfocal distance, but will render increasingly soft imagery at lower altitudes.
The automatic exposure control (AEC) system uses an external light meter. The AEC can be
overridden (plus-or-minus one F-stop) on the CPS.
The mount requires approximately 16 seconds to move the camera from vertical to forward, or back
to vertical. The Cps will display a mount fail light if the transition is not completed within 23 seconds.
Optional 3 inch focal length lens available.
Figure 22-14. KS-87D Serial Frame Camera Characteristics
ORIGINAL 22.24
NAVAIR WI-Ff4AAD1
infinity, no FMC, and 1 cycle per second) oo the CIPDU.
There is no cockpit indication that air-to-air settings
have been selected. The KA-99 is favored by fightcrews
on combat missions because its horizon-to-horizon lateral
coverage allows it to be used with a considerable
offset. This capability increases the flightcrew’s probability
of successfully completing the mission in defended
areas where evasive combat maneuvering will
ben ecessaryA. lthough it is not necessaryfo r the aircrafi
to be flown wings level when photographing a target
withtheKA-99 camera, the lackofmll-rate stabilization
dictates that an established angle of bank be maintained
while the target is within the camera’s FOV.
Figure 22-15 summarizes some specific characteristics
and information on the KA-99A panoramic
camera.
22.7.4 Long-Range Oblique Photography Camera
(KW53AWkh 610-Mm Lens). The KS-153A
still picture camera set is a modular, pulse-operated,
sequentiaM?amec amera designedf or oblique or vertical
reconnaissancpeh otographya t medium to high altitude.
TIvo configurations are available:
1. Low-altitude, high-speedp hotography( 80 mm focal
length tri-lens contiguration)
2. Medium-altitude standoff (610 mm/Zcinch focal
　
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