Keywords: Flettner rotor bomblet.jpg en The Flettner rotor a 7-in -long winged biological bomblet design was a test design that was never standardized ie selected to be mass produced It could carry either liquid or dry biological agents This type of bomblet was designed to be released from cluster bombs dispensers or missile warheads and spray out agent on impact The fins were designed to extend by centrifugal force in flight to stabilize the bomblet �s flight path to the target area http //www au af mil/au/awc/awcgate/medaspec/Ch-20electrv699 pdf Medical Aspects of Chemical and Biological Warfare - Ch 20 p 5 in PDF U S Army Borden Institute U S Customs Service van Keuren RT Chemical and Biological Warfare An Investigative Guide Washington DC Office of Enforcement Strategic Investigations Division US Customs Service; 1990 85 undated PD-USGov-Treasury PD-USGov Biological weapons Flettner rotors |