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 25 SYSTEMS & DYNAMICS (Read 5678 times)
tommchowat
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Re: SYSTEMS & DYNAMICS
Reply #45 - Oct 9th, 2020 at 3:45pm
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Things noticed on 1.6 for P3Dv5:

1) FD indications on takeoff fixed. Thanks.
2) VNAV descent above FL100 always results in speed dropping over 15 knots from commanded speed and THRUST REQUIRED message. Seems calculated descent path is too shallow? Descent winds are entered into the Forecast page. This is with or without and descent restrictions.
AIIR#6

3)
Nope. One issue ONE post, please. https://www.captainsim.org/forum/csf.pl?num=1533652095

Unable to disconnect Autothrottle using thumb buttons on thrust levers in any phase of flight apart from when on approach. If I try to disconnect the AT during cruise or descent for example, SPD just re-annunciates on the FMA. Only way to do it is to use switch on MCP.
4) STILL getting Autopilot warning and yellow line through GS FMA in last 20 feet of landing (someone posted a picture of this exactly problem on the previous page). Happens in manual or automatic flight.

  
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CaptLE
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Re: SYSTEMS & DYNAMICS
Reply #46 - Oct 9th, 2020 at 7:56pm
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[FSX 1.6]

HOLD waypoint is shown on the LEGS page with course instead of 'HOLD AT' above its name.

(Manual Part II, pg. 415)
" Leg segment data in line title:
      courses - magnetic (xxx°) or true (xxx° T)
      arcs - distance in miles, ARC, turn direction (example: 24 ARC L)
      heading leg segments - xxx° HDG
      track leg segments - xxx° TRK
      special procedural instructions from database - HOLD AT, PROC TURN. "

---

In the image, HOLD AT is not shown on the second instance of SPL, instead the course is displayed again below the original waypoint:

AIIR#6
  

HoldAt757.JPG ( 92 KB | 6 Downloads )
HoldAt757.JPG

Liam Evans
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tommchowat
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Re: SYSTEMS & DYNAMICS
Reply #47 - Oct 10th, 2020 at 3:06pm
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tommchowat wrote on Oct 9th, 2020 at 3:45pm:
Things noticed on 1.6 for P3Dv5:

1) FD indications on takeoff fixed. Thanks.
2) VNAV descent above FL100 always results in speed dropping over 15 knots from commanded speed and THRUST REQUIRED message. Seems calculated descent path is too shallow? Descent winds are entered into the Forecast page. This is with or without and descent restrictions.
AIIR#6

3)
Nope. One issue ONE post, please. https://www.captainsim.org/forum/csf.pl?num=1533652095

Unable to disconnect Autothrottle using thumb buttons on thrust levers in any phase of flight apart from when on approach. If I try to disconnect the AT during cruise or descent for example, SPD just re-annunciates on the FMA. Only way to do it is to use switch on MCP.
4) STILL getting Autopilot warning and yellow line through GS FMA in last 20 feet of landing (someone posted a picture of this exactly problem on the previous page). Happens in manual or automatic flight.



Face palm. This is possibly one of the worst support forums around. You'd like me to write 3 separate posts, only for you to then put AIIR at the end of all of them... I give up.
  
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trevors
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Re: SYSTEMS & DYNAMICS
Reply #48 - Oct 10th, 2020 at 4:00pm
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CaptLE wrote on Oct 9th, 2020 at 7:56pm:
[FSX 1.6]

HOLD waypoint is shown on the LEGS page with course instead of 'HOLD AT' above its name.

(Manual Part II, pg. 415)
" Leg segment data in line title:

I have this same problem.
      courses - magnetic (xxx°) or true (xxx° T)
      arcs - distance in miles, ARC, turn direction (example: 24 ARC L)
      heading leg segments - xxx° HDG
      track leg segments - xxx° TRK
      special procedural instructions from database - HOLD AT, PROC TURN. "

---

In the image, HOLD AT is not shown on the second instance of SPL, instead the course is displayed again below the original waypoint:

AIIR#6

  


Trevor
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trevors
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Re: SYSTEMS & DYNAMICS
Reply #49 - Oct 10th, 2020 at 4:01pm
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CaptLE wrote on Oct 9th, 2020 at 7:56pm:
[FSX 1.6]

HOLD waypoint is shown on the LEGS page with course instead of 'HOLD AT' above its name.

(Manual Part II, pg. 415)
" Leg segment data in line title:

I have this same problem.
      courses - magnetic (xxx°) or true (xxx° T)
      arcs - distance in miles, ARC, turn direction (example: 24 ARC L)
      heading leg segments - xxx° HDG
      track leg segments - xxx° TRK
      special procedural instructions from database - HOLD AT, PROC TURN. "

---

In the image, HOLD AT is not shown on the second instance of SPL, instead the course is displayed again below the original waypoint:

AIIR#6

  


Trevor
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trevors
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Re: SYSTEMS & DYNAMICS
Reply #50 - Oct 10th, 2020 at 4:01pm
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I have the same problem with the hold feature.
  


Trevor
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tommchowat
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Re: SYSTEMS & DYNAMICS
Reply #51 - Oct 12th, 2020 at 2:47pm
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Here we go, I'll give this a try.

Attempting to disconnect Auto Throttle during cruise using the thrust lever button. Autothrottle remains engaged, and SPD mode re-annunciates on the FMA. Video below.

https://youtu.be/3DSQxw1ys3g

AIIR#6
  
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Captain Sim
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Re: SYSTEMS & DYNAMICS
Reply #52 - Oct 14th, 2020 at 10:38am
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Off-Topic replies have been moved to this Topic.
  
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Angel of Attack
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Re: SYSTEMS & DYNAMICS
Reply #53 - Oct 18th, 2020 at 4:33am
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RR(535E4) Engine assume temperature and EPR issue.
I have reported this with 1.60RC2, but the post is gone and it's still there with 1.601HF, so I'll report it again.
The EPR will go down too fast with SEL tempture rise, the table is on manual IV page 25, for today's flight from sea level, and ATM to 60, it should give 1.54, but when input sel temp in FMC TO page, it will give like 1.38 or so, I have to use 40C SEL to get 1.54 TO EPR, and I take off with 1.54 feels right on the performance needed (didn't test it with single engine failure though)
  
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Re: SYSTEMS & DYNAMICS
Reply #54 - Oct 19th, 2020 at 9:13am
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Angel of Attack
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Re: SYSTEMS & DYNAMICS
Reply #55 - Oct 18th, 2020 at 10:49am
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When landing with Autobrakes, the Autobrakes will disram if excessive control wheel roll inputs are made. I guess is due to the spoiler movment introduced by roll input. (not 100% sure but with dozens of landing I feel that way)
On manual II p535, it says it will disarm when speedbrake LEVER is moved from full up position.

When using A2A accu_feel, there is much more roll movment on ground run and needed to be counter by wheel input, (more real than default), so this issue is more noticable.
  
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Captain Sim
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Re: SYSTEMS & DYNAMICS
Reply #56 - Oct 19th, 2020 at 9:17am
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BEYOND THIS POINT PLS MAKE SURE YOU ARE ON VERSION 1.7
  
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Angel of Attack
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Re: SYSTEMS & DYNAMICS
Reply #57 - Oct 20th, 2020 at 1:14pm
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Over all great job a VNAV with 1.7!
But I still feel there is a little bit too steep when descent below FL100 and with speed 240, the aircraft feels gain speed about 2~3 second a knot when idle around 5000~10000' at speed 240 and on VNAV PATH
  

CS752FL100B250.zip ( 149 KB | 6 Downloads )
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Funkarter
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Re: SYSTEMS & DYNAMICS
Reply #58 - Oct 20th, 2020 at 8:20pm
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Great improvement with the VNAV.

Thank you for the hard work.

Chris
  
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Angel of Attack
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Re: SYSTEMS & DYNAMICS
Reply #59 - Oct 22nd, 2020 at 12:42pm
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VNAV command a high CRZ speed after some turblence.
today with 752WP2040, I have enconterd some Heavy turblance when normally CRZ at FL360, and it send my speed slightly overspeed, the SPD LIM for AT is actived, and I have to manually climb the aircraft to drop back to speed. Also I changed my CRZ ALT from 360 to 400, before I noticed it's over the MAX FL388, so I set it back to 380 and descent back from like FL385 to FL380.

After settle back to FL380, the VNAV in CRZ mode command a speed on speed tape right at the amber band(about .84), while the FMC CRZ page shows proper ECON speed at .800 (but the title shows ACT LIM),  I tried to change SEL SPD in FMC, change CI, disconnect and reconnect AT/VNAV... they all not work, the speed back stick to amber band. I can then only fly with SPD INVL (soeed knob push) and set it manually.
  

cs752highcrz.zip ( 146 KB | 3 Downloads )
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