Air Force considering expansion of training complex The Air Force is considering expanding a western training airspace, which Ellsworth officials say would help B-1B Lancer pilots practice their craft in a more realistic atmosphere without having to travel long distances. But ranchers and others are concerned that the expansion would cause problems for wildlife, livestock and the environment. The Air Force proposed on May 29 an expansion of the Powder River Complex, which covers parts of South Dakota, North Dakota, Montana and Wyoming. The expansion would increase that training area by about four times. Rancher Larry Nelson, who is also president of the South Dakota Stockgrowers Association, said he knows all too well what it’s like to live in B-1 training airspace. Ellsworth B-1s have been flying over one of his two ranches in southwestern Harding County since the 1970s....