Visit Captain Sim web site  
  Welcome, Guest. Please Login or Register

 

Page Index Toggle Pages: [1] 2  Send TopicPrint
 10 autoland 4.3 questions (Read 10446 times)
Tim Capps
Senior Member
*
Offline


Defense Lawyer & US Navy
JAG (ret), Writer

Posts: 1070
Location: Southern Illinois
Joined: May 21st, 2009
autoland 4.3 questions
Jun 6th, 2009 at 5:58am
Print Post  
Looking for a little peer-to-peer support.

I am testing the autolanding.  I have not made any modifications; this is a recent download.

I find that it works well, but have a couple of questions.

1.  I notice the airplane is a little "lively" on approach, but not so much that I find it odd.  It seems like a natural aerodynamic effect, definitely not seeking behavior by the autopilot.  It just doesn't come down on rails like most planes.  Does this sound like the swimming effect people have noted?

2.  Flare.  Every autolanding is flat as a pancake.  They aren't hard by any means, there just isn't any flare.  Has this ever been acknowledged or fixed by anyone?

Thanks for any input.
  

PC: i9 10900K @ 3.8 GHz | 32GB DDR4 3200 | 10GB RTX 3080 | 32” Asus TUF VG32VQ Curved Monitor | Samsung 2TB SSD HD | Win 10 Pro 64 - Flight Sim P3Dv5.2 |
Back to top
 
IP Logged
 
MoD1987
Full Member
*
Offline



Posts: 15
Joined: May 21st, 2009
Re: autoland 4.3 questions
Reply #1 - Jun 6th, 2009 at 12:44pm
Print Post  
The aircraft tries to flare but the sinkrate is to high to get the nose up. (900-1200 ft/min) That is the point. The result is the "pancake landing" where FSPassengers always shows  tire blow because of hitting the runway to hard. I do not know a fix for this and Captain Sim has not released one yet.
  
Back to top
 
IP Logged
 
SIR_PAGANINY
Full Member
*
Offline


thrust level set, V1,
Rotate, V2

Posts: 89
Location: Porto, Portugal
Joined: Oct 30th, 2008
Gender: Male
Re: autoland 4.3 questions
Reply #2 - Jun 6th, 2009 at 9:48pm
Print Post  
MoD1987 wrote on Jun 6th, 2009 at 12:44pm:
The aircraft tries to flare but the sinkrate is to high to get the nose up. (900-1200 ft/min) That's is the point.

FSPassengers always shows  tire blow because of hitting the runway to hard. I do not know a fix for this and Captain Sim has not released one yet.




I never perform a full autoland on this aircraft for that reason. i always do the flare manually, because i use FSpassengers also and the tires blow in every landing.

If it is of your interest i did post a little tutorial about performing a flare in this 757 check this:

http://www.captainsim.org/yabb2/YaBB.pl?num=1243029473
  

Back to top
WWW  
IP Logged
 
Tim Capps
Senior Member
*
Offline


Defense Lawyer & US Navy
JAG (ret), Writer

Posts: 1070
Location: Southern Illinois
Joined: May 21st, 2009
Re: autoland 4.3 questions
Reply #3 - Jun 7th, 2009 at 3:20am
Print Post  
I noticed something interesting.  In the 753 I did a full autoland at Houston KIAH after a flight from Mexico City and it was not flat at all, with a vs of -139.96, which ain't bad.  I don't think that would blow any tires out.

I was at vref of 121 for flaps 30.

It came in a little nose-high, but there was definitely a little flare, too.

That is a great little tutorial.

So why don't you do autolands if that works for you?

I absolutely do not get any zig-zag or other nonsense on automated approach.  For some reason, I'm not having any of the problems I've seen elsewhere, except for the lack of a flare, and now I'm beginning to wonder if that will work if you get everything set up right.
  

PC: i9 10900K @ 3.8 GHz | 32GB DDR4 3200 | 10GB RTX 3080 | 32” Asus TUF VG32VQ Curved Monitor | Samsung 2TB SSD HD | Win 10 Pro 64 - Flight Sim P3Dv5.2 |
Back to top
 
IP Logged
 
SIR_PAGANINY
Full Member
*
Offline


thrust level set, V1,
Rotate, V2

Posts: 89
Location: Porto, Portugal
Joined: Oct 30th, 2008
Gender: Male
Re: autoland 4.3 questions
Reply #4 - Jun 7th, 2009 at 9:07am
Print Post  
SIR_PAGANINY wrote on Jun 6th, 2009 at 9:48pm:
MoD1987 wrote on Jun 6th, 2009 at 12:44pm:
The aircraft tries to flare but the sinkrate is to high to get the nose up. (900-1200 ft/min) That's is the point.

FSPassengers always shows  tire blow because of hitting the runway to hard. I do not know a fix for this and Captain Sim has not released one yet.




I never perform a full autoland on this aircraft for that reason. i always do the flare manually, because i use FSpassengers also and the tires blow in every landing.

bb2/YaBB.pl?num=1243029473[/url]



I haven´t said it works for me... i also use Fspassengers, and my tires blow most of the time if i use the autoland to flare... i still use the autoland except to flare... i will try the 757-300 to know if it happens to flare well as it happens with you as well.

regards
  

Back to top
WWW  
IP Logged
 
MoD1987
Full Member
*
Offline



Posts: 15
Joined: May 21st, 2009
Re: autoland 4.3 questions
Reply #5 - Jun 7th, 2009 at 10:57am
Print Post  
I have not testet yet the autoland capability of the 753. The 752 always blows tires in FSP. So I do the flare manually to make a smooth landing.
But I think a fix from Captain Sim for this issue is necessary because I am not the only one experiencing that bug.
  
Back to top
 
IP Logged
 
Neil
Full Member
*
Offline



Posts: 32
Joined: May 23rd, 2009
Autoland Problem
Reply #6 - Jun 11th, 2009 at 12:40pm
Print Post  
Hey guys hoping for a little bit of advice

I have performed a number of autopilot full flight and landings with great success, even being able to achieve a flare on a number of occasions.  However, the past two flights I have performed (EGCC to EGPH) the landing is not working.

The problem seems to be that when I hit the "LOC" and "APP" command buttons, the autopilot fails to intercept the localiser correctly, with the 3 Autopilot lights failing to light up (only the 1 I pressed stays activated).  It seems to descent in line with ILS approach charts however the landing is off to the right of the runway so that I end up landing on the grass or into trees.

I was wondering if it was anything to do with the IRS alignment but I am not sure how I would identify this.  Im pretty sure that I have been entering the correct GPS position into the FMC so I'm pretty much out of ideas on how to fix this problem.

Would it also be possible that there is an error in the FMC data or something.  I have the most up to date AIRAC data installed as well.

Any suggestions would be much appreciated.

Cheers
Neil Riddell
  
Back to top
 
IP Logged
 
Dennis G
Full Member
*
Offline



Posts: 43
Joined: Apr 14th, 2009
Re: autoland 4.3 questions
Reply #7 - Jun 11th, 2009 at 7:55pm
Print Post  
I've been getting pretty good results without using the LOC button. I just use the APP and I seem to go right in. All three lights come on. Not sure of exactly when to use the LOC .

Dennis G
  
Back to top
 
IP Logged
 
MoD1987
Full Member
*
Offline



Posts: 15
Joined: May 21st, 2009
Re: autoland 4.3 questions
Reply #8 - Jun 12th, 2009 at 12:27am
Print Post  
When I make an autoland I always press the LOC button first before the Approach Button. All three CMD Lights light up then but the aircraft does not flare correctly.
  
Back to top
 
IP Logged
 
Tim Capps
Senior Member
*
Offline


Defense Lawyer & US Navy
JAG (ret), Writer

Posts: 1070
Location: Southern Illinois
Joined: May 21st, 2009
Re: autoland 4.3 questions
Reply #9 - Jun 12th, 2009 at 12:36am
Print Post  
I engage LOC when on intercept course to the ILS, then APP when LOC is captured.  There may be debate as to this in real life according to something I read in other documentation.

I find that nailing -- and I mean nailing -- your vref at flaps 30 avoids the pancake landing and gives you a nose up touchdown.  Beyond that, I am not knowledgable to comment on the realism of the flare.  Let's just say it looks close enough to me and -300 vs shouldn't bend anything.
  

PC: i9 10900K @ 3.8 GHz | 32GB DDR4 3200 | 10GB RTX 3080 | 32” Asus TUF VG32VQ Curved Monitor | Samsung 2TB SSD HD | Win 10 Pro 64 - Flight Sim P3Dv5.2 |
Back to top
 
IP Logged
 
SIR_PAGANINY
Full Member
*
Offline


thrust level set, V1,
Rotate, V2

Posts: 89
Location: Porto, Portugal
Joined: Oct 30th, 2008
Gender: Male
Re: autoland 4.3 questions
Reply #10 - Jun 12th, 2009 at 2:06am
Print Post  
LOC is the first one to be pressed just because it is the first one to be captured, however if you already captured GS you may press APP first because APP it's LOC & GS in one...

The reason why pilots may choose to press LOC and APP individually its due the fact of certain situations, one may need or want to perform a particular path prior engaging LOC or APP for good approach reasons.

300 VS will not break your air plane but it's not the most comfortable landing for sure, and if that is the best you can get with an autoland it means something still needs the company attention, in this case the Captain Sim attention.  I had experiences with the aircraft performing a dive of death while on autoland to correct it's descent rate, and therefore no time at all to flare.. in fact only time to crash.
  

Back to top
WWW  
IP Logged
 
Tim Capps
Senior Member
*
Offline


Defense Lawyer & US Navy
JAG (ret), Writer

Posts: 1070
Location: Southern Illinois
Joined: May 21st, 2009
Re: autoland 4.3 questions
Reply #11 - Jun 12th, 2009 at 3:52am
Print Post  
We all have our realism points, of course.  Autoland is there if I need it, but I'm happier landing it myself.  And, the more I fool with it, maybe the better autolandings I'll get.

Unfortunately, the perfect airplane made up of my favorite parts from each without the bugs of any does not yet exist Smiley  I adopted the motto "happiness through lowered expectations" years ago and it has served me well in every aspect of my life.

It sometimes feels like the goal post keeps moving, though.  Autoland crashes your airplane.  Autoland doesn't crash your airplane, but it will not flare and you get a pancake landing.  Autoland flares, but it isn't a realistic flare.  Autoland does land your airplane at a reasonable nose-up attitude, but -300 vs isn't comfortable  Roll Eyes

If this trend continues, I can only imagine where I'll be in another two weeks  Grin  It will probably fly me bodily to the Ukraine and paint eggs for me.
  

PC: i9 10900K @ 3.8 GHz | 32GB DDR4 3200 | 10GB RTX 3080 | 32” Asus TUF VG32VQ Curved Monitor | Samsung 2TB SSD HD | Win 10 Pro 64 - Flight Sim P3Dv5.2 |
Back to top
 
IP Logged
 
Dennis G
Full Member
*
Offline



Posts: 43
Joined: Apr 14th, 2009
Re: autoland 4.3 questions
Reply #12 - Jun 12th, 2009 at 3:26pm
Print Post  
When doing an autoland to what and when should the auto throttle speed be set?

Dennis G
  
Back to top
 
IP Logged
 
MoD1987
Full Member
*
Offline



Posts: 15
Joined: May 21st, 2009
Re: autoland 4.3 questions
Reply #13 - Jun 12th, 2009 at 6:05pm
Print Post  
Speed must be set to Vref (Approach Page in FMC) + headwind. Autothrottle mode: Go around armed.
  
Back to top
 
IP Logged
 
Tim Capps
Senior Member
*
Offline


Defense Lawyer & US Navy
JAG (ret), Writer

Posts: 1070
Location: Southern Illinois
Joined: May 21st, 2009
Re: autoland 4.3 questions
Reply #14 - Jun 12th, 2009 at 7:43pm
Print Post  
I am working throught the manuals.  It isn't that hard, really, and it is really essential.

Is there or is there not speed control on approach like Airbus has, where the speed is reduced as flaps are extended, and eventually to the vref?  I'm thinking but just thought I'd check while I'm still going through the manuals on other stuff.
  

PC: i9 10900K @ 3.8 GHz | 32GB DDR4 3200 | 10GB RTX 3080 | 32” Asus TUF VG32VQ Curved Monitor | Samsung 2TB SSD HD | Win 10 Pro 64 - Flight Sim P3Dv5.2 |
Back to top
 
IP Logged
 
Page Index Toggle Pages: [1] 2 
Send TopicPrint
 
  « Board Index ‹ Board  ^Top