[NO BUG - AS INTENDED] Engine Spool time and responsiveness - ED Forums
 


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Old 06-08-2019, 10:18 PM   #1
Shrike88
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Default [NO BUG - AS INTENDED] Engine Spool time and responsiveness

Greetings

Would like to report a bug and issue with the significant length of time the AV8 -408 engine takes to make any large change in power settings. I have noticed an increase in the amount of time this latest update now is taking near 7-8 seconds from 32.5% to max (109/110) and equally as long for a reduction to flight idle.

Am unable to reference document flight checks (R1.16)as the exact amount of time that is within limits is notated, and we currently are exceeding these numbers by several seconds as currently modeled in the sim.

Can you please pass this to testing to and hopefully augment these numbers. We are currently hovering around the turbine responsiveness of a A321.

There are several locations for other information for a more ballpark idea on how long the engine lag time should take for changing power changes, especially siting videos

RPM and HUD indicated information is displayed as a reference from HOV to idle on touchdown.

Thank you.

https://youtu.be/Ntr4UhnnRkQ
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Old 06-10-2019, 10:44 AM   #2
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What you said above, plus the "fast deceleration solenoid" is not implemented, something I have asked about several times without ever getting any answer...
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Old 06-11-2019, 07:39 PM   #3
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Quote:
Originally Posted by bkthunder View Post
What you said above, plus the "fast deceleration solenoid" is not implemented, something I have asked about several times without ever getting any answer...
Yes. I know they are quick to respond on Reddit. @Decoy any idea if this is getting looked at or is known about? Very frustrating on Vertical Landing the lag on engine spool down.

Engine Spool up also needs to be 2.4-3.seconds 32% to 65%.
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Old 06-12-2019, 05:10 AM   #4
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Edit: this has been discussed and reported since Sept 2018 and still no official response from anyone?

https://forums.eagle.ru/showthread.php?t=220911
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Old 06-12-2019, 08:22 AM   #5
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Quote:
Originally Posted by Shrike88 View Post
Edit: this has been discussed and reported since Sept 2018 and still no official response from anyone?

https://forums.eagle.ru/showthread.php?t=220911
As I said, no answer from anyone
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Old 07-23-2019, 07:03 AM   #6
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BUMP!
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Old 08-08-2020, 10:39 AM   #7
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What a futile undertaking... But well: *bump
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Old 09-09-2020, 02:13 PM   #8
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Quote:
Originally Posted by bkthunder View Post
BUMP!
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Old 09-16-2020, 08:10 AM   #9
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Could this also be finally addressed (or at least on the list) and be connected with this issue:
Quote:
Originally Posted by Cornelius View Post
...Furthermore the spool down sound is audible during flight which shouldn't be the case as the fast deceleration solenoid is only activated with weight on wheels, if I'm correctly informed.
Quote:
Originally Posted by vstolmech513 View Post
The fast deceleration solenoid was removed and the cannon plug tied off almost 15 years ago. The spool down sound I believe you are referring to can be heard anytime that you retract the throttle from high RPM location to idle quickly. I will agree that the sounds are now horrible in the cockpit as they used to be pretty darn spot on. The only time you should hear the spool down sound is as the RPM comes down rapidly, like from max to idle in <2 secs. but it seems like any rapid retraction causes that spool down sound to play and mixed with the normal sound of the motor it sounds like a dying cat.
Quote:
Originally Posted by Cornelius View Post

As I understand it now you have to be on the ground to hear that sound, while in vertical flight it would mean that you are in free fall before you are able to hear it. In horizontal flight, the air which enters the engine will prevent a rapid reduction of the RPM anyway.
But, in this case I've no idea how a trackfile would be of any help...

Last edited by Cornelius; 09-16-2020 at 08:12 AM.
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Old 09-16-2020, 01:03 PM   #10
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Just stumbled on an interesting video on YT. Here, from idle to max RPM it took him about 6.5 seconds, and nearly the same from max to idle (no HUD or engine page showing, so I was going by the amount of whine)



https://www.youtube.com/watch?v=9_cJwT6qgV0
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engine spool, engine time, power setting, spool time

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