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-   -   Low Drag ILS approach RYR (https://www.pprune.org/spectators-balcony-spotters-corner/552514-low-drag-ils-approach-ryr.html)

Driver 170 7th Dec 2014 13:36

Low Drag ILS approach RYR
 
I have got an outdated Ryanair's FCOM for my PMDG 737 NGX

on this chapter and picture, is the A/C approaching the ILS or Localizer at the standard distance of roughly 10nm from touchdown? or is it infact intercepting the ILS at about 1200ft...



https://www.dropbox.com/s/14kjzbd5cg...%2013.png?dl=0

Driver 170 7th Dec 2014 13:43

What is the difference with a Low Drag ILS APP and a CAT I single channel manual approach

If i stand correct a CAT I ILS APP can also be a low drag -

During a CAT I ILS, the standard is to use low drag techniques, meaning
that you will delay flap and gear extension to optimise performance
and noise characteristics.

Driver 170 7th Dec 2014 13:51

Ryanair's FCOM also mentions this



Landing Procedure Single Channel or Manual - Pilot Flying
and Pilot Monitoring < RYR >

At 4nm, but not later than 3.5nm,
call “GEAR DOWN”, “FLAPS
15." Arm speed brake and check
green light illuminated. Call
“LANDING CHECKLIST DOWN
TO FLAPS.”

At glide slope capture, verify
proper mode annunciation, check
N1 reference bug at the go–around
limit and verify missed approach
altitude set.


is this referring to the FAF - glideslope intercept or from touchdown?

I thought glide slope capture would happen before 4nm...

thanks guys just need these things cleared up. much appreacited, vernon.

OhNoCB 7th Dec 2014 21:27

Sounds like two separate points to me.

4nm from touchdown gear f15

glide slope capture verify [...]

not necessarily in order.

Driver 170 8th Dec 2014 00:11

Thanks for the reply.

Thats what got me confused

AerocatS2A 10th Dec 2014 09:45


on this chapter and picture, is the A/C approaching the ILS or Localizer at the standard distance of roughly 10nm from touchdown? or is it infact intercepting the ILS at about 1200ft...
Those pictures aren't meant to be to scale or anything. The aircraft is intercepting the localizer at some point prior to the outer marker.

Driver 170 16th Dec 2014 18:16

Thanks for the response!

Also for CAT I Minima is RVR 550m and DA200 AGL

Does cloud ceiling become a factor or is this just for NPA and VISUAL app?

OhNoCB 17th Dec 2014 14:30

Only RVR for ILS unless the approach states ceiling required.

Driver 170 17th Dec 2014 17:56

And if single crew 800m...

Check this out for a Low Drag ILS app.

http://youtu.be/BrsHUmFd1yc

OhNoCB 18th Dec 2014 14:29

single crew can also go down to 550m with a coupled auto pilot.

Driver 170 20th Dec 2014 20:53

Thanks!

Talking about approaches. I was looking at the minimums at LFLB, ILS rwy 18 and each one has a % next to it. Now this means the approach climb gradient and there is a few to choose from like, 2.0% 2.5% 3.0% etc. how can i work out what is for my AC?

AerocatS2A 21st Dec 2014 03:20

You need to get into the performance part of the flight manual and work it out. The FCOM may have some simplified information to make it easier.

Chances are some one at your airline has already done this, so ask around. Try your performance department.

Driver 170 21st Dec 2014 19:02

I don't work for an airline. So this sort of thing is going to be hard for me!

AerocatS2A 21st Dec 2014 21:36

If you are flight simming, just use the lowest minima with highest missed approach gradient.

Driver 170 22nd Dec 2014 00:45

Yeh i used 1690ft as the minima. Think that was about 5% for rwy 36

Also how can i work out for a given speed over a certain distance, on when to turn downwind?

Example :

Fly the ILS approach on heading 176 and at point A turn left to point B on heading 135 for 2.6nm. Then turn right for downwind for xxnm

How can i work out those distances to fly in seconds? So when i turn at those points i start my stop watch. Speed is 150kts max so gear down f25-30 at this point.

I do have other visual aids like the highway A43 that pilots use for this approach, because i have european roads added to my flight sim.

Thanks!!

AerocatS2A 22nd Dec 2014 07:12

Do you have a link to the approach plate you are referring to?

Driver 170 22nd Dec 2014 10:39

http://https://www.dropbox.com/s/mao...%2015.png?dl=0

Driver 170 22nd Dec 2014 10:42

Dropbox link isn't working

Driver 170 22nd Dec 2014 10:49

https://www.dropbox.com/s/maouxhblih...%2015.png?dl=0

AerocatS2A 22nd Dec 2014 11:19

That's a special approach! In real life I'd be flying it visually during the day. Unfortunately a visual circuit is one of the harder things to do in a sim due to the lack of peripheral vision. At 150 knots you travel 2.5 NM per minute, but you also need to allow for the radius of turn. You could program some RNAV waypoints and follow those.


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