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Laser Guided Bomb

 

In this Fall 1998 photograph, while on the Moody Air Force Base flightline, USAF Capt. Kevin Raybine checks out the training variant of the GBU-10 Paveway laser guided bomb loaded on his A-10A -- Photo by Shelby G. Spires 

 

 


  Early guided munitions development:

 

 

     

    "There is a need to destroy with pinpoint accuracy..." -- 1950s Pentagon Study

      Guided weapons were nothing new to the  United States military, even in 1965.  The concept dated back to the Germans and World War II.  German scientists developed the FRITX-X and the HS-293 both based on radio controlled guidance.  These were used by the German Luftwaffe to destroy  the Italian battleship Roma on September 3, 1943 because the Italians were going to turn the ship over to the Allies.  At the end of  World War II, the U.S. Army Air Force had used radio guided bombs to destroy bridges in Burma, and then again five years later in Korea.  The weapons were difficult to use, hard to maintain and because of  radio control problems often were unreliable, but they proved guided weapons were a reality.
       However, the strHe-111s were used to test early radio bombsategic thinking of the 1950s revolved around bombs large enough to destroy cities, not bridges.  The Pentagon promptly abandoned guided weapon development,. promising as it was, for a larger concept, that of nuclear weapons.  For the most part, during the 1950s, guided air-to-ground weapons were a neglected step child.  The favored approach was to use a blunt sledgehammer type nuclear weapon and not a surgical scalpel to take out targets.
       The U.S. Navy and Air Force had been using radio guided weapons for a few years by the time the air war began over Southeast Asia.  However, the  bombs had unreliable guidance packages, and when they did hit a target the small warheads were not enough to destroy an object as large and well made as a bridge.  In the case of the 1965 Than Hoa raid, pilots reported the bombs simply bounced off the bridge with no noticeable damage to the French made structure.
       Word started thinking along lines that would get American bombs closer to their intended targets.  An engineer with Texas Instruments, Word had been working on a submarine detection net off the New England coast and was looking for more challenging work  when he crossed paths with laser engineer Dave Salonimer, in late 1964.  Salonimer was trying to convince the U.S. Army to use a laser targeting sysFlash Gordon fire his  ray guntem for artillery strikes.  "Dave had conceived this idea of the Army artillery using a laser.  Well, Salonimer thought wouldn't it be great if you could take a flashlight, ala a laser, mark a target, and then send a missile or a shell or whatever over the hill and hit it," Word said.  "Those where the serious early thoughts about laser guidance."
       Within the military, however, there were no takers for Salonimer's "Buck Rogers" idea of using lasers to guide projectiles, and in late 1964 the Huntsville, Alabama based scientist  wanted Texas Instruments to devise a way to launch a Shrike air launched anti-radar missile from the ground then use a laser guidance system to guided the missile to a marked target.  It all sounds easy, today, for the buddy lasing tactic is standard work for the U.S. Army and Air Force, but in 1964 it was still the stuff of science fiction.
       Adapting an air launched missile for ground use wasn't easy either, remembers TI engineer Tom Weaver. "We started looking at the use of the Shrike airframe, which is not very good I might add, but it was low cost and simple to make," Weaver said.  "It looked promising, enough for a demo contract anyway, but nothing came of it."

    Continue to "The Proposal"

       

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All Text and Design Copyright (c) 2005 Shelby G. Spires. All rights reserved.

sgspires@sgspires.com