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To view this page ensure that Adobe Flash Player version 9.0.124 or greater is installed. However, as ground based security measures such as setbacks, barriers, and access controls are implemented around critical infrastructure, terrorists may view GA aircraft as a possible means to circumvent these defenses. While many forms of ground transportation, especially trucks, can accommodate significantly larger payloads than almost all GA aircraft, some observers fear that aircraft may be used in a terrorist attack because they cannot be as easily thwarted by blockades, barriers, or other physical security measures. Nonetheless, executing an attack that involves loading a GA aircraft with a large quantity of explosives may be difficult without raising some suspicion at the airport, at least domestically where airport operators and pilots have been instructed to be vigilant for such unusual activities. While the threat posed by light GA aircraft carrying conventional explosives is limited by the size and speed of these aircraft , some experts argue that small aircraft 37 Aircraft Owners and Pilots Association. General Aviation and Homeland Security: A Security Brief by the Aircraft Owners and Pilots Association. (January 23, 2004, Frederick, MD). 38 Based on information from Cessna Aircraft Company, Information Manual: Skyhawk Model 172P, May 12, 1981, and Piper Aircraft Corporation, Piper Warrior II Information Manual, Revised September 12, 1990. 39 While weight is not the only consideration in evaluating explosive force, it is meaningful for comparing the potential threat posed by aircraft and vehicles that differ in terms of their payload capacity. may pose a significant threat if used as a platform to launch a chemical, biological, radiological, or nuclear (CBRN) attack over a densely populated area. In these cases, payload capacity and speed may not be considered as significant components of the risk equation. Rather, with regard to the CBRN threat, the most significant element associated with small GA aircraft appears to be their unique capability to fly at relatively low altitudes above densely populated areas and large congregations of people on the ground. In fact, the slow speed of these smaller aircraft and the ease at which doors and windows on non-pressurized airplanes and helicopters can be operated in flight may actually pose a greater threat of certain types of attacks, such as chemical and biological attacks, as compared to larger, faster aircraft. Agricultural aircraft used for spraying crops with pesticides and fertilizers pose a unique threat as a platform for a biological or chemical attack because they are specifically designed for aerial dispersal and could be exploited by terrorists for this specific purpose. 中国通航网 www.ga.cn 通航翻译 www.aviation.cn 本文链接地址：Securing General Aviation 通用航空安保(19) |
