Example of Source and IAP Chart

aterpster

aterpster

En-Route
Joined
Apr 15, 2011
Messages
3,317
Display Name
Display name:
aterpster
Note that both terminal routes converge at the course reversal IF/IAF. One has NoPT and one does not.

Note also that each line on this forum is issued under FAR 97.
 

Attachments

  • O41 RNAV Rwy 36.pdf
    168 KB · Views: 42
  • CA_O41_RNAV(GPS)_RW36_ORIG_NDBR.pdf
    644.3 KB · Views: 37
I was just looking for one of those 8260s. Is there a good online source for them?
 
Velocity173 said:
Good stuff. I dabbled in the IAP TERPs a bit. As an IFE I was tasked to design an Emergency Copter GPS approach in Afghanistan. Might recall when the floods in Pakistan a couple years ago? Well my buds went there and needed an approach out of the field they were based out of. I know aterpster this is bare bones but it's the best I could in one night. Hopefully there aren't too many errors in it.:D
Click to expand...

The chart and tracks look fine. But, no way to know from the chart whether the TERPs areas were more or less complied with. Obstacle clearance, both lateral and vertical, is predicated on a target level of safety. That's where the real work in TERPs is; e.g. by the designers of criteria in Flight Standards.
 
Given the difference in minimum altitudes on the RAGGS/CEVIT and PIVSE/CEVIT segments, I expect the reason the PT is required on the RAGGS transition is to lose altitude before crossing the fix again inbound.

I bet if those dang hills weren't in the way, it would be different.
 
TMetzinger said:
Given the difference in minimum altitudes on the RAGGS/CEVIT and PIVSE/CEVIT segments, I expect the reason the PT is required on the RAGGS transition is to lose altitude before crossing the fix again inbound.

I bet if those dang hills weren't in the way, it would be different.
Click to expand...

You're right, of course. With a little more work the specialist could have tweaked the feeder route from the west with a step-down fix and probably made it NoPT as well. In order to have NoPT it also has to be an initial approach segment rather than a feeder route. But, making it an initial segment also reduces vertical obstacle clearance in that area by as much as 1,000 feet.
 
You must log in or register to reply here.
Back
Top