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Autorouter issues and questions (merged)

It must have been a fantastic learning experience to develop that tool. I too am quite impressed by it. I particularly like the briefing pack including NAV plan with very accurate wind forecasts, climb performance, w&b, the ability to download charts, and the fantastic routes it comes up with although I prefer routes with a moderate amount of DCT. I do not understand the necessity of all the altitude changes so I tend to manually edit the FPL to get rid of them. I also think that the authors have gone somewhat overboard with the briefing, particularly with the synoptic charts.

One thing I have a hard time doing in the autorouter though, is something really simple as changing the date/time of a flight.


I couldn’t open anything except skybriefing and I don’t know if they have changed that in Zurich.

Apparently they did, there’s a sticker on the computers saying “for skybriefing only”, but and worked nevertheless.

LSZK, Switzerland

As part of recent software updates, the login to autorouter using no longer functions. It should be fixed soon. If you need urgent access, please send us a message via the contact form.

Sorry about that.

David is working on it right now.

Shoreham EGKA, United Kingdom

It’s fixed. Apologies.

EGTR / London, United Kingdom

Is it me, or are there problems with Autorouter this morning?

Just tried a route to LFLY and it finds the route but when you try to use it you get an SQL error.

Oxford and Bidford

That is a sporadic error we’ve been chasing for weeks — without success. Just try again when it fails.

Thanks Achim, I’ll try it again when I get home tonight.

Oxford and Bidford

Achimha, quick question trying to know more how it works. I planned for LKKU-LZKZ with default build-in model PA28. 10 different options were presented to me with various combination – from complete IFR to complete VFR, 172M is generating the same number of option.. That´s fine and what I did expect. When I do the same search with SR20 I am offered only “IFR SID into VFR” and two VFR options, no full IFR option there. M20K is generating only 6 – but this time full IFR included. Looks there is something in the performance table preventing SR20 IFR arrival to LZKZ. I changed maximum descent rate from 1 000 into 2 000 fpm dive but this did not help. M20K has 1 000 fpm and allows me to get into LZKZ.
When flown last month vectors to ILS 01 required some faster descent but STAR will get me there comfortable and I believe descent performance should not limit the ability to fly IFR. Can you have a look at that sometime ? not a critical item definitely…


@Michal thanks for bringing this to our (my) attention.

I changed maximum descent rate from 1 000 into 2 000 fpm dive

Unfortunately that doesn’t always help anymore. The problem is Eurocontrol has some pretty bad performance model especially for GA aircraft. We used to override the worst of it by supplying our own 4D profiles calculated with the user’s performance data. Unfortunately, with their last software release, they have tightened what we can do to override this. For example, their model thinks the SR20 will need ~65NM to descend from F110 to airport altitude.

So the router first came up with:

Then the Eurocontrol Profiler didn’t like it and issued a PROF50 error, thinking you would be descending too early. Our software then didn’t correctly process that PROF error, got confused and abandoned the I plan.

I changed it to come up with: HLV1G HLV P27 PPD R232 MARKA MARKA7A. This is exactly the same routing in all respects, but apparently more acceptable to Eurocontrol.

The change is not yet on the server, that will take some more time.

LSZK, Switzerland
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