SLOP in non oceanic areas
 

Hello all,

I´ve performed a basic search looking for info on applying a SLOP on non oceanic routes but can´t find anything right now, so I might as well ask. I thought I saw in the forum a couple of months ago that a few companies are applying such on all their routes.

Are any of you doing this right now?

My company is thinking about it, and I would like some feedback as to if someone else is actually doing it.

Thanks in advance,

SEQU

We SLOP in parts of Africa.

Many do - and very sensibly.

Africa and some Chinese airways.

Offsets are very common in China. The difference in China is that they assign a specific offset to each flight. I have heard assignments as much as 15 mi right or left of course (may have been around known weather), though 3 mi is more typical. I do NOT recommend you do your own SLOP.

Doing SLOP in someones domestic airspace without clearance is not at good idea (most of Africa excluded). I dunno about China.

I have never understood this - since all the traffic you are likely to collide with will be EXACTLY on the c/line with RNAV etc, it seems 1/2 mile rt is a good place to be?.

So long as you stay within the airway I think it's a blooming good idea to offset these days. Even at my young age I remember when we used to wait in anticipation for the rad alt to kick as we passed directly overhead opposite traffic and were mostly disappointed. Now if you don't pass directly overhead it's reason to question your navigation.

Fill your boots en-route. But don't forget to cancel when joining the star.

My Honeywell FMS won't accept an offset of 0.5nm. :{

Stay on route unless you get a clearance.

We're advised to offset over Afghanistan.

On flights to South America we SLOP 1nm Right once we are South of 30 North until established in Atlantic Oceanic Airspace..then Zero SLOP..

It is not the problem
Use 1 NM (to the right of course)

No ATC will ever have any problem with that.
Even in STAR.

Zlin77, are you saying you don't SLOP in Atlantic mnps?

On The North Atlantic Track System...yes we SLOP...South Atlantic from Dakar to Sao Paulo..no SLOP, just following company procedures.

according to my present carrier, studies have shown that at least 2nm are required for wake vortex induced chops.

Thanks for your replies.

Helps a lot.

Saludos,

SEQU

Don't do it in Australian airspace without a clearance or they will bust you!!

Nitpicker, that's right, a number of years ago in a former airline between NZAA & RKSI, a little HDG select diversion around a CB near Honiara, maybe only 1 mile off track..CPDLC MSG.."Report back on track"..Big Brother IS watching you!!

As someone once said "We are cleared airway UB 123, not centreline UB123"
so 1 NM right isnt a bad idea.