Missiles made in northern Utah by Thiokol Corp. and Williams International were among those fired in the opening barrages of Operation Desert Storm.

For example, engines for the Tomahawk surface-to-surface missile were made by the 300 workers at Williams International's Ogden Plant."From what we can see on TV, they have performed admirably," said Williams spokesman Dave Jolivette.

"We've been working on this program for 10 years," Jolivette said. "It's never been actually tried before in a real situation. The fact that it's now been tried and is apparently successful is gratifying."

Defense Department reports say the Tomahawks were launched from battleships and were aimed at targets unsuitable or too dangerous for manned air flights.

Thiokol's Tactical and Ordnance divisions both manufacture components of weapons that are available for the military's use.

"But for us to say that things made here were or have been used in the Middle East would be inappropriate," said Thiokol spokesman Steve Lawson. "We deliver our products to our customer, the U.S. Department of Defense, and whether they distribute them to Japan or Germany or wherever is not up to us."

Thiokol's Tactical Operations includes production facilities in Brigham City; Elkton, Md.; Huntsville, Ala.; and Carson City, Nev. Products for the Tactical market include rocket motors for surface-to-air, air-to-air and anti-ship missiles, and the primary customers are the Navy and Air Force, according to the company's annual report.

Tactical rocket motors are made for the Army, Air Force and Navy and international markets, according to a company brochure. Thiokol makes the motors on these missiles that may be used in Operation Desert Storm:

Patriot - An anti-missile missile air defense weapon. Batteries of Patriot surface-to-air missiles have been set up in northern Saudi Arabia and Israel for use to intercept Iraqi aircraft.

Tow 2 - An anti-tank weapon that will likely be an integral part of a ground war.

Maverick - An air-to-surface missile that has "launch-and-leave" capabilities, enabling pilots of launch aircraft to seek other targets or leave the target area once it has been launched.

Sidewinder - A close-range air-to-air missile using infrared guidance. Loaded on U.S. attack planes.

Hellfire - A helicopter or ground-launched anti-tank device that will be a major weapon in a ground war.

Thiokol's Ordnance Operations has plants in Louisiana, Texas and Utah.

"Currently, our Utah Tactical is manufacturing the M-257 Standoff flare, LUU 2B-B and LUU 4B drop flares," according to a company brochure.

Hercules Inc., Utah's other major defense contractor, manufactures a variety of missiles. Hercules workers in Utah, however, are employed mainly in the manufacture of components for strategic nuclear weapons.