minimum obstacle clearance altitude(The altitude above sea level (ASL) between specified fixes on airways or air routes that meets the IFR obstacle clearance requirements for the route segment in question, MOCA Alexander Demidov)
minimum obstacle clearance altitude(The altitude above sea level (ASL) between specified fixes on airways or air routes that meets the IFR obstacle clearance requirements for the route segment in question, MOCA Alexander Demidov)
request low pass(при пролете над диспетчерским или наблюдательным пунктом для производства визуального осмотра с земли (при невыпуске шасси и т.п.) Lena Nolte)