@article{ref1,
title="Helicopter rotor blade injury: a persistent safety hazard in the U.S. Army",
journal="Aviation, space, and environmental medicine",
year="1993",
author="Crowley, J. S. and Geyer, S. L.",
volume="64",
number="9 Pt 1",
pages="854-858",
abstract="Rotor blade injuries are an inherent hazard of helicopter operations. To determine the recent incidence of rotor blade injuries in the U.S. Army, a review of accident records (1972-91) was conducted. Crash-related injuries were not included. During the study period, there were 24 blade strike injuries (12 involving the main rotor), 11 (46%) of which were fatal. Comparison with previous reports indicates a lower rotor blade injury rate in the last decade than in any previous period. The head was injured most frequently (65%), followed by the chest (17%) and abdomen (7%). Protective helmets helped to reduce injury in several instances. Flight crew comprised 49% of the victims, passengers 29%, ground crew 14%, and bystanders 8%. Helicopter crews must maintain situational awareness when around turning blades--professional training alone does not guarantee protection from rotor blade injury.<p /> <p>Language: en</p>",
language="en",
issn="0095-6562",
doi="",
url="http://dx.doi.org/"
}