Date: Fri, 20 Dec 96 12:28:04 JST
From: Masahiko Aoki 
Subject: [aml:2698] New cruise missile Test
To: aml@jca.or.jp (aml)
Reply-To: aml@jca.or.jp
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Posted: Fri, 20 Dec 1996 12:26:07 +0900
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Approved-By:  Sysop Afpan 
Date:         Thu, 19 Dec 1996 16:30:58 CST
Reply-To: Sysop Afpan 
Sender: Air Force News Service 
From: Sysop Afpan 
Subject:      20dec96 afns
To: AFNS@PEACH.EASE.LSOFT.COM

ÅiëºãLéñÇÕè»ó™Åj

961299.  Cruise missile scores precision strike in flight
demonstration

SEATTLE (AFNS) -- The Air Force and the Boeing Aircraft
Company have successfully demonstrated that an AGM-86C
Conventional Air-Launched Cruise Missile, guided only by Global
Positioning System navigation, can deliver precision strike
accuracy.

During a Dec. 12 test flight, a modified CALCM, launched from a
B-52H bomber, flew for approximately four and one-half hours
and impacted the target area within the accuracy requirements
necessary for a precision strike designation.  The demonstration
also included a steep-terminal-dive maneuver for delivering a
penetrator warhead on target -- the first time such a maneuver has
been performed by a CALCM.

CALCMs -- conventionally armed, unmanned and self-guided
missiles that can be used for precision strikes against fixed targets
deep behind enemy lines -- are manufactured by converting surplus
AGM-86B Air Launched Cruise Missiles.  The original CALCM,
used most recently in strikes against Iraq, featured an early
generation, single channel GPS receiver and a blast fragmentation
warhead.

A new GPS receiver system featured in the test flight included
several design changes to improve navigational accuracy.  These
changes included a sophisticated new navigational model, and
algorithms to compensate for signal time delays caused by pressure
and temperature changes in the Earth's atmospheric layers.

Additional factors contributing to the highly accurate CALCM
performance include an improved GPS receiver capability for
tracking up to eight satellites simultaneously, and the use of Wide
Area GPS Enhancement, Phases I and II, which boost GPS satellite
constellation performance.  WAGE Phase I technology currently is
integrated into the GPS constellation, while Phase II, which was
made operational specifically for the test flight, is a prototype
satellite enhancement system developed by the Air Force.

Carl Avila, Boeing Air Launched Missiles program manager, says
the successful demonstration marks a significant step forward for
the CALCM program.

"These results clearly show that future CALCM variants can
deliver a conventional warhead from extremely long range stand-
off positions, with the accuracy and terminal characteristics
necessary to attack hard, reinforced or buried targets," Avila said.
"These improvements provide a baseline for future CALCM
models, but also can be easily incorporated into missiles currently
in the field."

In July, Boeing delivered to the Air Force a version of the CALCM
with enhancements that doubled the accuracy and warhead
effectiveness of earlier CALCMs, for a conversion cost of
approximately $150,000 per missile.

The CALCM program is managed by the Oklahoma City Air
Logistics Center at Tinker Air Force Base, Okla., and
manufactured by Boeing Defense & Space Group at facilities in
Oak Ridge, Tenn.
&
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        ê¬ñÿâÎïF
        Masahiko Aoki
E-mail:btree@osk.threewebnet.or.jp
Nifty-serve:BYP03111
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