IAP Question
Thread Starter
Join Date: Apr 2012
Location: Hawaii
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
IAP Question
Hi All
I'm currently studying for FAA IR and saw some strange figures on this plate.
LANEO is 8.1 DME and PERLY is 6.2 DME
The segment length between these is shown as 2nm on both the Plan and profile views
Is there any reason for the difference between quoted DME distances and segment lengths or is it just a screw up by the FAA?
I'm currently studying for FAA IR and saw some strange figures on this plate.
LANEO is 8.1 DME and PERLY is 6.2 DME
The segment length between these is shown as 2nm on both the Plan and profile views
Is there any reason for the difference between quoted DME distances and segment lengths or is it just a screw up by the FAA?
Join Date: Dec 2004
Location: A place where something is or could be located; a site.
Posts: 455
Likes: 0
Received 0 Likes
on
0 Posts
Having never seen the plates I'm going to make an educated guess.
The DME given are slant distances. If the segment length given is a horizontal one, then there will be a difference which can be calcuated using Pythagoras' theorem.
I do want to restate that I've not seen the plates and this is just a suggestion!
The DME given are slant distances. If the segment length given is a horizontal one, then there will be a difference which can be calcuated using Pythagoras' theorem.
I do want to restate that I've not seen the plates and this is just a suggestion!
Join Date: Apr 2009
Location: UK
Posts: 489
Likes: 0
Received 0 Likes
on
0 Posts
Its on the ILS Z for R04R at PHNL. As stated above there is a 2nm distance between LANEO and PERLY on plan view but the distance on the glide between the two when descending from 1700ft to 1500ft is 1.9nm.
