Had an interview the other day and was stumped on a couple jepp chart questions. I don't use these in the part 91 flying I do now but I did look pretty hard at my jepp commercial/instrument manual before the interview and I downloaded/searched all 30 jeppesen chart clinic PDF's and haven't found the answers.
So here we go:
1. What do the small "x" s mean on the overhead (plan) view of the approach plate? I think it was on an approach int Oakland CA or SFO and there was a line of these x's on there.
2. MORA's on the lo charts (1 and 2 in particular around portland) have red numbers but most others are blue. Do the red MORA's indicate mountainous terrain or what? I found this blurb from 11dec issue of the jepp clinic but it doesn't say anything more about red vs blue numbers:
On Jeppesen charts, all MORA altitudes which are
6,000 feet or lower have an obstacle clearance of
1,000 feet. If the MORA altitudes are 7,000 feet
or greater, the obstacle clearance is 2,000 feet.
Thanks.