Was Lack of Sleep a Major Factor?: According to the Wilmington (Del.) News-Journal, the investigation into the April 3 crash of a C-5 airlifter just short of the runway at Dover AFB, Del., may have bypassed a significant factor—lack of sleep among the crew members. A summary of the official accident investigation report released last week put the primary blame on crew failures to follow standard emergency procedures and, in particular, using a dead throttle. The News-Journal reports that investigators also noted that “limited sleep” might have contributed to the accident. Retired Air Force pilots talking with the newspaper believe the Air Force should look at the C-5 throttle arrangement, which, unlike other aircraft, has no lock down position for out of service throttles.
The KC-Z4, a blended wing body tanker concept being developed by startup JetZero, could fuel larger groups of aircraft at longer range to hold more targets at risk, company officials say.