Low Drag ILS approach RYR

[Driver 170]

I have got an outdated Ryanair's FCOM for my PMDG 737 NGX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/14kjzbd5cghah8r/Photo%2005-12-2014%2021%2000%2013.png?dl=0

[Driver 170]

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]

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]

Sounds like two separate points to me.

4nm from touchdown gear f15

glide slope capture verify [...]

not necessarily in order.

[Driver 170]

Thanks for the reply.

Thats what got me confused

[AerocatS2A]

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]

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]

Only RVR for ILS unless the approach states ceiling required.

[Driver 170]

And if single crew 800m...

Check this out for a Low Drag ILS app.

http://youtu.be/BrsHUmFd1yc

[OhNoCB]

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

[Driver 170]

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]

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]

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

[AerocatS2A]

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

[Driver 170]

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]

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

[Driver 170]

http://https://www.dropbox.com/s/maouxhblihb4pb7/Photo%2018-12-2014%2017%2029%2015.png?dl=0

[Driver 170]

Dropbox link isn't working

[Driver 170]

https://www.dropbox.com/s/maouxhblihb4pb7/Photo%2018-12-2014%2017%2029%2015.png?dl=0

[AerocatS2A]

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.

[Driver 170]

I have track ir on my headset, so where my head goes it follows it in the virtual cockpit.

Its a hard maneuver! So how did you work out the 150 kts 2.5nm a minute? Also the turn radius?

Thanks

[BOAC]

60kts=60nm/hour=1nm/minute

'Radius of turn' at Chambery is taken care of by flying that procedure (corrected for wind) for the (adjusted) times on the chart. The procedure is known a 'circling with prescribed tracks' in English and MUST be flown 'visually'. Often there are no such tracks/distances laid down so you do your own thing.

[Driver 170]

Right i see so, 150 kts would be 60kts x 2 = 120kts ( 2NM ) and you have 30 kts left so half of a NM ( 0.5NM ) and you Add that to the 2 = 2.25 NM

My maths ain't the best so is that correct...

[Driver 170]

Sorry not 2.25 but 2.5

[Driver 170]

Off topic but saves starting a new topic!

After getting my route validated with CFMU i get a ATC rest of FL250 but my cruise alt is FL390. So do i enter FL250 into the FMC first (initial cruise alt) or my final cruise alt of FL390?

Also what about my press controller FL250 or FL390?

[OhNoCB]

There's more than one way to skin a cat.

I would set FL390 as planned, if ATC gave me an inital climb to FL250 then that's fine, they will probably give higher later. If they specifically say "Due xxx max level for cruise today will be FL250" or similar then I would reset FMC and press. to FL250.

[Driver 170]

EGPF to LFLB i had my first ALT rest. FL230 and my final ALT390

LFLB weather was below minima but i could still dispatch my flight according to JAR OPS 1 or EU OPS

2 alternates and above planning minima !

So i'll enter FL390 in my FMC and the rest i'll deal with the MCP ALT window

Job done :) thankyou for the response, time, that you have given!