The Marine Corps and F-35 joint program office discovered cost estimates for F-35B sustainment "were underrunning expectations" by 10 to 15 percent, according to a service official. Lt. Gen. Steven Rudder, deputy commandant for aviation, said roughly 14 months ago a team composed of Marine Corps and JPO personnel investigated F-35B sustainment cost increases between program objective memorandum 2017 and POM-19, according to written testimony submitted March 7 to the House Armed Services tactical air and land subcommittee. "A closer...
