B-21 Experiencing Early Production 'Hiccups,' Lawmaker Says

摘要

Rep. Rob Wittman (R-Va.), chairman of the House Armed Services Subcommittee on Seapower and Projection Forces,rnsaid there have been some early production “hiccups” with the B-21, notably with its engines.rnWittman told reporters following a speech at the McAleese/Credit Suisse defense conference that there have beenrnchallenges with airflow through the B-21 engines. “This is a very, very different design as far as inflow, and there havernbeen some design challenges there,” he said. Engine maker Pratt and Whitney has disagreements with the ductingrncontractor on how much air can move through the engine and balancing that with cowling and maintaining its lowrnobservability.