<s>
The	O
AN/APG	B-Device
-66	I-Device
radar	B-Application
is	O
a	O
solid	O
state	O
medium	O
range	O
(	O
up	O
to	O
150km	O
)	O
pulse-Doppler	B-Algorithm
planar	B-Algorithm
array	I-Algorithm
radar	I-Algorithm
originally	O
designed	O
by	O
the	O
Westinghouse	O
Electric	O
Corporation	O
(	O
now	O
Northrop	O
Grumman	O
)	O
for	O
use	O
in	O
the	O
F-16	O
Fighting	O
Falcon	O
.	O
</s>
<s>
This	O
radar	B-Application
was	O
employed	O
in	O
all	O
domestic	O
and	O
export	O
versions	O
of	O
the	O
F-16	O
A/B	O
models	O
throughout	O
the	O
production	O
.	O
</s>
<s>
In	O
that	O
mode	O
,	O
the	O
AN/APG	B-Device
-66	I-Device
can	O
detect	O
a	O
fighter-size	O
plane	O
at	O
a	O
range	O
of	O
34.5	O
Nautical	O
miles	O
(	O
55.6	O
kilometers	O
)	O
.	O
</s>
<s>
In	O
dogfight	O
mode	O
,	O
the	O
radar	B-Application
scans	O
a	O
20	O
degrees	O
x	O
20	O
degrees	O
field	O
.	O
</s>
<s>
The	O
radar	B-Application
system	I-Application
consists	O
of	O
the	O
following	O
line-replaceable	O
units	O
:	O
</s>
<s>
APG-66(T47 )	O
–	O
installed	O
in	O
Cessna	O
OT-47B	O
.	O
</s>
<s>
APG-66(V )	O
2	O
–	O
upgrade	O
of	O
base	O
radar	B-Application
developed	O
for	O
the	O
F-16	O
Fighting	O
Falcon	O
Block	O
15	O
Mid	O
Life	O
Update	O
program	O
.	O
</s>
<s>
APG-66(V )	O
2A	O
–	O
AN/APG	O
-66(V )	O
2	O
with	O
a	O
new	O
combined	O
signal	O
and	O
data	O
processor	O
that	O
provides	O
seven	O
times	O
the	O
speed	O
and	O
20	O
times	O
the	O
memory	O
of	O
the	O
older	O
radar	B-Application
computer	O
and	O
digital	B-Architecture
signal	I-Architecture
processor	I-Architecture
line	O
replaceable	O
units	O
.	O
</s>
<s>
In	O
this	O
new	O
variant	O
,	O
the	O
displayed	O
resolution	O
in	O
ground-mapping	O
mode	O
is	O
quadrupled	O
,	O
and	O
is	O
reported	O
to	O
be	O
close	O
to	O
that	O
offered	O
by	O
SAR	B-Application
techniques	O
.	O
</s>
<s>
APG-66(V )	O
3	O
–	O
as	O
APG-66(V )	O
2	O
but	O
with	O
CW	O
illumination	O
capability	O
,	O
export	O
to	O
Taiwan	O
.	O
</s>
<s>
APG-66(V )	O
X	O
–	O
improved	O
version	O
of	O
the	O
APG-66(V )	O
2/3	O
radar	B-Application
with	O
greater	O
detection	O
range	O
.	O
</s>
<s>
APG-66T	O
–	O
multi-target	O
track	B-Algorithm
while	I-Algorithm
scan	I-Algorithm
variant	O
.	O
</s>
<s>
APQ-164	B-Device
–	O
designed	O
for	O
the	O
US	O
Air	O
Force	O
B-1	O
Lancer	O
bomber	O
,	O
with	O
a	O
passive	B-Algorithm
electronically	I-Algorithm
scanned	I-Algorithm
array	I-Algorithm
.	O
</s>
