PPRuNe Forums - View Single Post - night circling
Thread: night circling
View Single Post
Old 9th Feb 2015, 09:11
  #3 (permalink)  
manymak
 
Join Date: Dec 2008
Location: Australia
Posts: 120
Likes: 0
Received 0 Likes on 0 Posts
Circling areas are based on threshold position from each USEABLE runway. So if the runway is unusable at night due lighting then you cannot use it for the sake circling area requirements.

From jepp terminal
NOTE 3: The circling area is determined by drawing an arc centered on the threshold of each
usable runway and joining these arcs by tangents. The radii are 1.68 NM (3111m) for Category A;
2.66 NM (4926m) for Category B; 4.2 NM (7778m) for Category C; 5.28 NM (9779m) for Category
D; and 6.94 NM (12,853m) for Category E. Runways less than 1000 meters long are not considered
usable for Categories C, D and E.
manymak is offline