The flight was conducted under special visual flight rules , which require the pilot to remain clear of cloud and in visual contact with the surface 該次飛行是按照特殊目視飛行規(guī)則進行;根據該規(guī)則,飛行員須一直離開云層并能目視地面。
A civil aircraft performing visual flight shall observe visual flight rules and keep a safe separation from other aircraft and ground obstacles 進行目視飛行的民用航空器,應當遵守目視飛行規(guī)則,并與其他航空器、地面障礙物體保持安全距離。
Pilots fly under “ visual flight rules ” ? they file a flight plan with a local flight service station , navigate by altimeter and visual cues , and stay out of controlled airspace 駕駛員按照目視飛航規(guī)則飛行,也就是先向區(qū)域性的飛航服務站提出飛行計畫書,然后利用高度計和目視地標航行,并且不能進入飛航管制的空域。
Before the implementation of ifr routes and procedures , helicopter services between hong kong and macau were operated only when weather conditions satisfied the visual flight rules . flights were sometimes delayed or even cancelled due to inclement weather 在儀表飛行規(guī)則路線及程序獲準采用前,來往港澳之間的直升機只可在天氣容許目視飛行的情況下運作,直升機服務偶會因天氣惡劣而延遲或取消。
百科解釋
Visual flight rules (VFR) are a set of regulations under which a pilot operates an aircraft in weather conditions generally clear enough to allow the pilot to see where the aircraft is going. Specifically, the weather must be better than basic VFR weather minima, i.