4. 飞机的AGL altitude和MSL altitude 美国联邦航空局(FAA)提到的AGL (above ground level) altitude,是指飞机到地面的垂直距离,一般是等同于无线电高度获得的真实高度(absolute altitude)。当飞机在机场上方时,也可以看作是等同于气压高度表获得的场压高度(QFE),即飞机到机场跑道的相对高度,也可以看作是气压高度表...
It is likely that for AAM airspace corridors accessible to sUAS, above 400 ft AGL will be designated. For longer-distance flights, a flight plan might use an efficient dynamically geofenced route to/from a high-altitude transit tube, potentially requiring a hybrid combination of dynamic flight ...