The U.S. Navy next year will pay 85 percent more for the solid rocket motors that power its Trident 2 D5 submarine-launched ballistic missiles in part due to the cancellation of NASAโ€™s Constellation program, a Navy official told lawmakers April 6.

The Trident 2 D5 is the only U.S. strategic missile currently in production, and the price per rocket motor will increase from $10.7 million this year to $19.2 million in 2012, Rear Adm. Terry Benedict, the Navyโ€™s chief of strategic systems, said during a hearing of the Senate Armed Services strategic forces subcommittee.

By volume, NASA has historically accounted for about 70 percent of the United Statesโ€™ total volume of solid rocket motor production, Benedict said. With the space shuttle set to retire this year and no assurance there will be a follow-on program, the Defense Department is bearing the burden of supporting the entire industrial base, he said.

The centerpiece of NASAโ€™s marked-for-cancellation Constellation program is a family of rockets, called Ares, that would use larger versions of the shuttleโ€™s solid rocket boosters. While the administration of President Barack Obama has proposed shutting down the Ares program, Congress enacted legislation last year directing NASA to build a heavy-lift rocket that would incorporate Ares and shuttle technology. NASA, however, has said it cannot afford to build such a rocket.

Meanwhile, the Pentagonโ€™s acquisition chief, Ashton Carter, signed off April 5 on a final report on the future of the solid rocket motor industrial base, Benedict said. An interim version of the report released in July mentioned a number of ideas for sustaining the U.S. industrial base but also said manufacturing capacity must be reduced.