<s>
The	O
AN/TPQ	B-Algorithm
-10	I-Algorithm
and	O
its	O
operators	O
were	O
known	O
as	O
an	O
‘’	O
Air	O
Support	O
Radar	O
Team’’	O
(	O
ASRT	O
)	O
and	O
were	O
employed	O
by	O
the	O
Marine	O
Air	O
Support	O
Squadrons	O
within	O
the	O
Aviation	O
Combat	O
Element	O
.	O
</s>
<s>
The	O
AN/TPQ	B-Algorithm
-10	I-Algorithm
saw	O
extensive	O
use	O
during	O
the	O
Vietnam	O
War	O
supporting	O
Marine	O
Forces	O
in	O
the	O
I	O
Corps	O
Tactical	O
Zone	O
from	O
1965	O
through	O
1971	O
,	O
most	O
famously	O
to	O
great	O
effect	O
during	O
the	O
Battle	O
of	O
Khe	O
Sanh	O
in	O
early	O
1968	O
.	O
</s>
<s>
It	O
remained	O
a	O
mainstay	O
of	O
Marine	O
Corps	O
close	O
air	O
support	O
tactics	O
until	O
it	O
was	O
phased	O
out	O
of	O
the	O
inventory	O
in	O
the	O
early	O
1990s	O
after	O
the	O
Gulf	B-Application
War	I-Application
.	O
</s>
<s>
Improved	O
avionics	O
in	O
military	O
aircraft	O
and	O
the	O
emerging	O
use	O
of	O
satellite	O
based	O
navigation	O
systems	O
had	O
quickly	O
made	O
the	O
AN/TPQ	B-Algorithm
-10	I-Algorithm
redundant	O
and	O
obsolete	O
.	O
</s>
<s>
In	O
November	O
1945	O
,	O
the	O
Commandant	O
of	O
the	O
Marine	O
Corps	O
directed	O
the	O
Commanding	O
General	O
of	O
the	O
9th	O
Marine	O
Aircraft	O
Wing	O
to	O
evaluate	O
the	O
AN/MPQ	B-Device
Close	I-Device
Cooperation	I-Device
Control	I-Device
Unit	I-Device
for	O
use	O
in	O
close	O
air	O
support	O
operations	O
.	O
</s>
<s>
Testing	O
was	O
conducted	O
by	O
Marine	O
Air	B-Application
Control	I-Application
Group	O
1	O
(	O
MACG-1	O
)	O
under	O
the	O
command	O
of	O
Colonel	O
Robert	O
o	O
.	O
Bisson	O
from	O
12	O
April	O
–	O
6	O
September	O
1946	O
.	O
</s>
<s>
For	O
this	O
testing	O
they	O
utilized	O
an	O
AN/MPQ	B-Device
-2	I-Device
radar	O
borrowed	O
from	O
the	O
United	O
States	O
Army	O
Air	O
Corps	O
and	O
a	O
F4U	O
Corsair	O
fitted	O
with	O
an	O
AN/APN	O
-19	O
radar	O
beacon	O
.	O
</s>
<s>
The	O
1st	O
Marine	O
Air	B-Algorithm
Support	I-Algorithm
Radar	I-Algorithm
Team	I-Algorithm
(	O
1st	O
MASRT	O
)	O
,	O
nicknamed	O
"	O
Devastate	O
Charlie	O
"	O
,	O
was	O
attached	O
to	O
Marine	O
Tactical	O
Air	B-Application
Control	I-Application
Squadron	O
2	O
(	O
MTACS-2	O
)	O
and	O
operated	O
in	O
support	O
of	O
the	O
1st	O
Marine	O
Division	O
.	O
</s>
<s>
The	O
AN/TPQ	B-Algorithm
-10	I-Algorithm
was	O
the	O
system	O
developed	O
under	O
this	O
contract	O
.	O
</s>
<s>
The	O
AN/TPQ	B-Algorithm
-10	I-Algorithm
was	O
produced	O
by	O
General	O
Electric	O
's	O
Heavy	O
Military	O
Electronics	O
Department	O
in	O
Syracuse	O
,	O
New	O
York	O
.	O
</s>
<s>
The	O
first	O
AN/TPQ	B-Algorithm
-10	I-Algorithm
was	O
set-up	O
250	O
feet	O
off	O
the	O
runway	O
at	O
Da	O
Nang	O
Air	O
Base	O
and	O
conducted	O
its	O
first	O
mission	O
on	O
the	O
evening	O
of	O
31	O
April	O
1965	O
when	O
it	O
provided	O
direction	O
for	O
a	O
C-130	O
on	O
a	O
flare	O
dispensing	O
mission	O
.	O
</s>
<s>
These	O
were	O
the	O
first	O
ever	O
operational	O
course	O
directed	O
bombing	O
runs	O
in	O
a	O
combat	O
zone	O
utilizing	O
the	O
AN/TPQ	B-Algorithm
-10	I-Algorithm
.	O
</s>
<s>
The	O
AN/TPQ	B-Algorithm
-10	I-Algorithm
was	O
utilized	O
for	O
additional	O
mission	O
sets	O
as	O
the	O
Vietnam	O
War	O
progressed	O
.	O
</s>
<s>
They	O
provided	O
course	O
direction	O
for	O
aircraft	O
that	O
were	O
resupplying	O
forward	O
positions	O
via	O
aerial	B-Operating_System
resupply	I-Operating_System
.	O
</s>
<s>
In	O
emergency	O
situations	O
they	O
also	O
provided	O
Ground-controlled	O
approach	O
services	O
at	O
airfields	O
when	O
Air	B-Application
Traffic	I-Application
Control	I-Application
's	I-Application
precision	B-Algorithm
approach	I-Algorithm
radars	I-Algorithm
were	O
not	O
available	O
.	O
</s>
