» More serious due to nature of the job: With the 6,000-strong plant producing such military aircraft as the V-22 Osprey vertical take-off aircraft and the H-47 Chinook helicopter, officials took extra care with this drug ring. ”This investigation and prosecution focused not only on the sellers, but also on the users because of the critical role that these employees play in manufacturing military aircraft,” noted U.S. Attorney Zane David Memeger. Officials say that the quality of the aircraft was not affected by the drug ring, and that current and former employees were arrested.