Special Aircraft Service

the SAS Hangar => The Lounge => Topic started by: Uzin on November 07, 2018, 03:06:58 PM

Title: Lazy variometer?
Post by: Uzin on November 07, 2018, 03:06:58 PM
Variometer in LaGG-3 seems to move too slowly and overshooting so I cannot use it for  help when landing. Perhaps somebody can explain this ? Or it seems only to me?
Title: Re: Lazy variometer?
Post by: SAS~Storebror on November 07, 2018, 10:18:53 PM
Any special game version we're talking about?
I've just checked 4.12.2 sourcecode and the smoothening of variometer values on the Lagg-3 is the same like on any other plane, it's smoothing factor is 200, see Lagg sources here...
Code: [Select]
CockpitLAGG_3SERIES4.this.setNew.vspeed = ((199.0F * CockpitLAGG_3SERIES4.this.setOld.vspeed + CockpitLAGG_3SERIES4.this.fm.getVertSpeed()) / 200.0F);...and for comparison, Bf 110G sources here...
Code: [Select]
CockpitBF_110G.this.setNew.vspeed = ((199.0F * CockpitBF_110G.this.setOld.vspeed + CockpitBF_110G.this.fm.getVertSpeed()) / 200.0F);
The Variometer's role in a landing approach is to give you a clue about your sink rate, which should be a pretty much stable value to the plane's books.
If you sink rate changes too much for the variometer to keep up with the changes, then there's something wrong in your approach pattern that is beyond the scope of your vario.

]cheers[
Mike
Title: Re: Lazy variometer?
Post by: Uzin on November 08, 2018, 10:01:53 AM
Thank you, Mike,
for your thorough response.
The error is ,perhaps, in betweem my chair and the joystick, lol.
The plane was tested on several Il-2 versions, here are the *.ntrk files from 4.13.4 and 4.10.1 modded versions.

https://www.mediafire.com/file/juls4y83qe6zb8t/LaGG3_ldg.7z/file (https://www.mediafire.com/file/juls4y83qe6zb8t/LaGG3_ldg.7z/file)

You can see that the mod shoving (in red on the left side) values of vertical speed reacts quicker than variometer of the plane.

There is also another issue in LaGG3 ver 66 in Il-2 4.13.4 SAS mod 6.40, namely,
in air start, the tail wheel is not opened  .

I know I am not good pilot, nevertheless, perhaps you will spend some of your time for giving me wise advices.