At this (R-NAV)-SID chart, there is written that the MSA is 3700 ft, the center is the ARP. But how can.......

Question

..... I enter it into the FMC? Normally, when your MSA is a NDB or VOR, you just go to the FIX page, enter the NDB or VOR and make a circle of 25 NM around them. But how do I enter a ARP?

http://i213.photobucket.com/albums/cc115/PilotFerdi/d3.png

Answer 1

Your fmc should allow you to set msa using the airport as the fix

Answer 2

Use the airport's identifier as your fix point, ARP stand for Airport Reference Point, so its the same as the lat/long.

Honestly though, a MSA doesnt really do you much good.  I'd save the clutter on my screen and just eliminate this step.  At no point should you ever be lost enough that a MSA even enters into your line of thinking.  If you are flying something with a FMS, you should have enough technical knowledge to know how do go RNAV direct to one of these points.  Especially since its a RNAV SID.

Answer 3

use lat/long