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cagrikartal

Before and After the SP1C

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hi everyone

 

 Im facing 2 problems since the latest service pack of the T7(sp1c).

*the first one is that the  auto thrust cant keep the speed on short finals it even drops to the yellow bar ( ive tested it  almost 10 times in diffrent weather conditions ). 

*the second one is that when approaching 100-150ft agl, the the aircraft levels off (on manual flight and trim good) and i have to put a good amound of forword input to the yokes.

 

now i assume that the t7 fbw system has a kind of flare mode but in this case it levels off at approx 100 ft agl  where i sould be somewhere around 600-750 fpm

 

Anybody having this kind of issues ? Maybe they are not issues and im doing something wrong. Please enlighten me.

 

Thanks in advance

 

 

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Erek,

 

Both of these sound like problems that shipped with the original v1.0 RTM that were resolved with the original version of SP1.

 

My recommendation would be to remove the 777 entirely, delete the dlls from the /Gauges directory.  Delete the saved aircraft files from the /PMDG/777X directory and then reinstall.

 

I'm betting you have something wonky stored in an ini or config file that is causing behavior you shouldn't be seeing.

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thanks for quick response Robert,

 

The thing is, i ve already done it yesterday. I ve removed every single pmdg files from my computer. i ve lunched a search for pmdg files in the entire computer in order to make sure that i have a complete reinstall.

 

I have stored my pmdg copies( ngx, t7, t7-300er and all service packs) in a usb stick and the thing that i may do wrong is the istallation sequences. I know that u ve already told us what to do about ''things we sould do before installing service packs''. But im a little confuised about what i did yesterday.

After i ve removed avery pmdg file from my computer i ve reinstalled the T7 Base p., the RTM version then sp1c for the -200lr/f  and -300er then sp1c for -300er.

I skiped the sp1 and sp1b as i ve read somewhere that the sp1c ld update either from RTM or sp1+sp1b to sp1c.

 

Is this maybe the problem?

 

thank you

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Just a quick side note Erek, did you start FSX and load the T7 then exit between each patch installation? Just trying to help. :-)

 

 

 

 

 

 

 

 

David warner

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Just a quick side note Erek, did you start FSX and load the T7 then exit between each patch installation? Just trying to help. :-)

 

David warner

Based on how PMDG installs stuff, this procedure won't add anything other than a lot of time.

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Just a quick side note Erek, did you start FSX and load the T7 then exit between each patch installation? Just trying to help. :-)

 

 

 

 

 

 

 

 

David warner

no i didnt. 

thanks :)

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I also seem to be suffering these issues since updating to SP1C. Everything was fine before this.

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Hi,

Yep it caught me out as well. Established passing the localizer capturing ILS and all of a sudden find my air speed dropping very quickly so disconnected auto throttle and auto pilot and did a manual landing. Saved the passengers ^_^.

Had speed set 161 KTS and then out of the blue she dropped like a brick.

 

Kind regards, Rick Melcher

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tonight im going to remove every thing and reinstall the t7 untill sp1b. we ll see if it still happens. if yes, the problem is in sp1c (which i doubt). i ll let you know here

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What addons (besides the 777) are you guys using? Maybe it's something with the weather engine setup or FSUIPC

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Interesting. I took my first flight with sp1c last night and had this happen on approach as well. AT suddenly started to struggle maintaining speed which eventually dropped too low and gave warnings. I had to take manual control of the throttle. This was on final approach. I attributed this to some wind anomaly as it was windy (I use Active Sky Next). However, I never had this happen before with the 777 and it did seem odd. I will do another flight today to see what happens.

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It would be helpful if people with A/T issues would check and report what A/T mode is showing at the top left of the PFD when the A/T problem arises.

 

Also, I believe a full reinstall starting with the original RTM of Sept. 2013 will leave pre-SP1 panel states that need to be deleted.  Check in FSX>PMDG>777X>Panelstates and see if there are any files dated before SP1, or install the RTM, delete all panel states and then install SP1C.  Also, make sure you are not starting with a flight that uses a pre-SP1 panel state (including one that you might have saved after SP1 came out but is derived from a pre-SP1 panel state).

 

Mike

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Do you guys use ASN? I've noticed with SP1, approaches are much more choppy and dynamic (not static like default FS). Maybe this has something to do with it. I haven't experienced the issue, but I haven't auto landed in a long time. However, I was flying circuits around PHNL yesterday and it was definitely a dynamic and choppy/windy approach.

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Do you guys use ASN? I've noticed with SP1, approaches are much more choppy and dynamic (not static like default FS). Maybe this has something to do with it. I haven't experienced the issue, but I haven't auto landed in a long time. However, I was flying circuits around PHNL yesterday and it was definitely a dynamic and choppy/windy approach.

Wow, me too. I flew this weekend at PHNL with ASN SP1b and it was nearly impossible to land. I need to find the correct settings to tune down.

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Wow, me too. I flew this weekend at PHNL with ASN SP1b and it was nearly impossible to land. I need to find the correct settings to tune down.

I haven't flown much since SP1 was released, so I just attributed it to a windy day at PHNL (also overall turbulence because of the nearby mountains and the airport close to the sea, etc). But, if the turbulence is like that everywhere, the T7 might just be struggling too much and as such can't keep up.

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I flew into Brunei INTL Airport (WBSB) whilst using ASN and here also the weather was pretty nasty.

Could that contribute ? Other then using ORBX Global and Global Vector I have a complete clean install with any other airport sceneries or other aircraft.

 

Cheers, Rick

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Hi everyone,

 

I have the exact same issues (at around 140' it feels like an allmighty ground effect kills the sinkrate all at once). AT is not able to catch the trimmed speed (trimmed for 145, actual speed dropped to 136 and N1 stays at around 56% without being influenced by AT).

I too use Active Sky Next with the latest service pack and hotfix installed. I did also notice that since Saturday on every single airport I fly (Dubai, Frankfurt, Munich, Tromso, Bergen ...), the landing is almost impossible due to medium to heavy turbulences and an instant kill of sinkrate at around 140 - 100 ft.

It's really a fight to land the plane, but not only the 777. I also suffer the same problem with the A319; yesterday an invisible hand pressed me down to the threshold and the METAR said: 17006 9999 -RA. It was almost impossible to hold the flightpath.

 

I use the 777 SP1b installer (which means SP1b is already included), everything on a new setup, deleted the FSUIPC countless times and setup everything new.

 

It seems that it's an ASN problem (only a best guess by myself). I'll try today same flight as yesterday with same weather conditions. But this time using FSGRW to see if these sinkrate killer appear here as well.

 

Best regards,

Ben

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What I'd suggest - fly an approach to your desired airport with no weather (one hand-flown landing and one automatic) and see what happens. Then add a default FSX weather model and repeat the same procedure. If no problems occur then it's an ASN SP1 kind of thing and the developers should fix it.  

 

I use FSGRW and never had any problems since SP1c - it even flies better and is more stable than before the service update.

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Just to add my 2 cents even though I have yet to purchase the 777:

 

On approach to EFHK with ASN SP1b, the weather was too much for the A319 auto thrust system to handle. IAS was jumping +/- 15kts. I had to manually fly her in.

 

I'm willing to guess, that PMDG has put much more effort into getting the auto throttle system right, that Aerosoft, but for me it seems that most reporters on this thread are using the latest version of ASN.

 

Pure coincidence?

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Hi everyone,

 

Made two flights yesterday, one with 777F and the other with A319. Same weather before yesterday (03-Nov-2014) where I encountered these abnormal turbulences, groundeffect in 140' and non-responsive AT. In short: Same scenario as in every landing since Saturday ^_^ (if I remember correctly at this time I applied the newest hotfix to the SP).

 

This time I used FSGRW latest version and with both aircraft I made picture-book approaches and landings. The PMDG AT reacted so smooth and good to the turbulences (medium turbulences forecasted and finally happened), it was a real pleasure to fly in this weather ^_^.

 

I'll drop a ticket to ASN this afternoon and see what happens and will provide them a link to this topic.

 

Best regards,

Ben

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Here is a video after reinstalling sp1c and hole pmdg 777. I was suposed to install sp1 then sp1b and check it without sp1c but i could nt find the sp1 where i tought i stored. So i went on doing it via the oc. But it installed the latest sp.

 

In this video i used a default wheather senario of the fsx and i think the problems seem like gone. I tried the same landing with asn and it happend again.

 

Please everyone suffering from these problems, make same tests and we ll see for sure the what causes the problem.

 

Here is the video that took a day to upload. Sorry for the delay.

 

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I'm experiencing exactly the same problems, running latest ASN. Basically I started another thread about this issue (http://forum.avsim.net/topic/455070-777-autothrottle-unable-to-maintain-speed-during-approach/) I didn't search too well :blush: . 

 

Unfortunately I don't know what the behaviour was before latest service pack as I purchased the T7 a week ago. Many thanks for suggesting that, I'll check without ASN and after disabling turbulence etc...

 

[edit]

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Indeed I've tested and I found out that the issue disappears when ASN isn't running. The FSX built-in weather engine doesn't cause the same problem. Also, running ASN with the turbulence slider set to 0 (zero) is also fine.

 

However, there is a loss in realism there I believe. We can easily blame ASN but what if the 777 autothrottle can't cope with the more realistic turbulence?

 

Best Regards,

Michael

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We can easily blame ASN but what if the 777 autothrottle can't cope with the more realistic turbulence?

 

First - have a look at the intro manual and the graph in there about "turbulence" in FSX. "Realistic" isn't a word I'd place next to anything like that.

 

Second - I don't recall the thread, but I thought that even ASN is looking into it, as their SP1 introduced the issue. That's the impression I got.

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