An effort to develop a heavy-fuel engine for the Hunter Joint Tactical Unmanned Aerial Vehicle is being halted because the powerplant is overweight, a senior U.S. Army official said. The AS240 JP8-burning engine was supposed to come in at 235 pounds, but its weight is "significantly higher," said Col. P.K. Tanguay, JTUAV program manager. Hunter prime contractor TRW issued a stop-work order, which was subsequently extended by the government until Aug. 5, Tanguay said last ...

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