1. U.S.
FAA- The following are exceptions to the maximum holding airspeeds1. Holding patterns from 6001ft to 14000ft may be restricted to a maximum airspeed of 210 kt.
This nonstandard pattern will be depicted by an icon.2. Holding patterns at all altitudes may be restricted to a maximum airspeed of 175 kt.
This nonstandard pattern will be depicted by an icon.3. Holding patterns at USAF airfields only - 310 kt maximum, unless otherwise depicted.4.
Holding patterns at U.S. Navy fields only - 230 kt maximum, unless otherwise depicted.근거 : AIM 5−3−8 j 2(a)2.
ICAO1. The levels shown re..........