The BQM - 74C has now been replaced in production by the BQM - 74E and has a third greater range and endurance than its predecessor .
The BQM - 74E is externally all but identical but incorporates the uprated J400 - WR - 404 engine as standard .
The BQM - 74C has now been replaced in production by the BQM - 74E , which is externally all but identical but incorporates the uprated J400 - WR - 404 engine as standard , and has a third greater range and endurance than its predecessor .