Air Force officers are considering the feasibility of developing a new route for low-level bomber training flights across Utah, with up to two B-1B and two B-52 aircraft using it daily.

Information is being gathered for an environmental impact statement on the project, according to officials of the Strategic Air Command at Offutt Air Force Base, Nebraska.The new training route, called IR-323, would begin southwest of Ouray, Uintah County, and head toward Green River. Then it would turn southeast toward Fremont, Wayne County and Greenwich, Piute County.

Finally, the route would head to the northwest, toward the Utah Test and Training Range in Tooele County.

No more than 15 percent of the flights would be scheduled between 10 p.m. and 7 a.m., say mission planners. Of the flights scheduled, normally only 75 percent actually fly.

The lowest altitudes and highest speeds flown would be 600 feet at 620 miles per hour for the B-1B, and 400 feet at 390 mph for the B-52.