Alliant says can replace Russian launch engine for U.S. satellites
September 23, 2014 at 12:38 PM EDT
WASHINGTON, Sept 23 (Reuters) - Alliant Techsystems Inc (ATK) said on Tuesday it has submitted a proposal to build a commercial solid-fuel rocket motor to replace the RD-180 Russian-made engine now used to launch key U.S. military and spy satellites.