32. 秘书长在空中业务项下请求编列经费 166 083 300 美元，比 2017/18 年度分配数减少 17 888 900 美元，即 9.7%。行预咨委会从手头资料中注意到，拟议资源包括用于无人驾驶飞机系统的 13 223 471 美元。行预咨委会询问后得到了关于2016/17 年度这些系统的行动使用情况的资料，资料中指出，只有一个系统得到充分利用，其他系统利用率不足，从 44%到 93.6%不等。考虑到无人驾驶飞机系统的利用率，行预咨委会建议无人驾驶飞机系统的拟议资源减少 5%，即 661 200美元。
32. Under air operations, the Secretary-General requests a provision in the amount of $166,083,300, representing a decrease of $17,888,900, or 9.7 per cent, compared with the 2017/18 apportionment. The Advisory Committee notes from information provided to it that the proposed resources include the amount of $13,223,471 for unmanned aerial systems. Upon enquiry, the Committee was provided with information on the operational utilization of these systems in the 2016/17 period, which indicated that only one system was fully utilized, while other systems were underutilized at a rate ranging from 44 per cent to 93.6 per cent. Taking into account rate of utilization of the unmanned aerial systems, the Committee recommends a reduction of 5 per cent, or $661,200, to the proposed resources for unmanned aerial systems.