The Air Force's acquisition chief recently notified lawmakers of progress made on six prototyping programs during the second half of 2017, according to a March 24 letter Inside the Air Force reviewed this week. Two programs, including an electronic attack pod and an unmanned aerial system project dubbed "Bloodhound," launched between June 1 and Nov. 30, 2017, Will Roper, the service's assistant secretary for acquisition, technology and logistics, wrote. "Spectral Halo is a Deputy Secretary of Defense-directed effort to prototype...