[Flightgear-devel] Fix to turn co-ordinator to give me proper standard turns

2006-10-22 Thread Mike Dusseault
So I was practicing standard turns and timing myself. By the turn co-ordinator, I would complete 180 degrees too fast. The attitude indicator showed my bank angle to be more than I expected for a standard turn as well (this is in the Cessna 172P).
And I realised the problem with the 50 second standard turns I've heard about and was noticing myself are because the turn co-ordinator is off. I figured out where to put the attitude indicator for a good 180 in 60 seconds standard turn and that lead me to exactly what's wrong. The little airplane image is actually slightly too high. I have a picture of one in my book, and the plane should line up with the side bars when level, not be just slightly above it.
Anyways, if you move it down by 2 in the y-transform, everything lines up properly. Just tested it and got 180 degrees in 60 seconds almost exactly with the turn indicator in the right place. Here's a patch for the very simple fix:
--- turn.xml.orig 2006-10-22 02:48:27.0 -0400+++ turn.xml 2006-10-22 02:48:32.0 -0400@@ -140,7 +140,7 @@ properties' values. /transformation transformation
 typey-shift/type- offset8/offset+ offset6/offset /transformation /transformations /layerI also found a bug in the gear stuff in 
limits.nas, which I'll post in the next day or so once I get time to make sure it's all ok.Back to practicing my turns, WITH working co-ordinator. You know, you've got to love having the sources. If something doesn't work, I can just fix it. :)
Later,Mike.
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Re: [Flightgear-devel] Fix to turn co-ordinator to give me proper standard turns

2006-10-22 Thread Curtis Olson
Hi Mike, thanks for the fix, I've added this to CVS.Curt.On 10/22/06, Mike Dusseault [EMAIL PROTECTED]
 wrote:So I was practicing standard turns and timing myself. By the turn co-ordinator, I would complete 180 degrees too fast. The attitude indicator showed my bank angle to be more than I expected for a standard turn as well (this is in the Cessna 172P).
And I realised the problem with the 50 second standard turns I've heard about and was noticing myself are because the turn co-ordinator is off. I figured out where to put the attitude indicator for a good 180 in 60 seconds standard turn and that lead me to exactly what's wrong. The little airplane image is actually slightly too high. I have a picture of one in my book, and the plane should line up with the side bars when level, not be just slightly above it.
Anyways, if you move it down by 2 in the y-transform, everything lines up properly. Just tested it and got 180 degrees in 60 seconds almost exactly with the turn indicator in the right place. Here's a patch for the very simple fix:
--- turn.xml.orig 2006-10-22 02:48:27.0 -0400+++ turn.xml 2006-10-22 02:48:32.0 -0400@@ -140,7 +140,7 @@ properties' values. /transformation transformation
 typey-shift/type- offset8/offset+ offset6/offset /transformation /transformations /layerI also found a bug in the gear stuff in 
limits.nas, which I'll post in the next day or so once I get time to make sure it's all ok.Back to practicing my turns, WITH working co-ordinator. You know, you've got to love having the sources. If something doesn't work, I can just fix it. :)
Later,Mike.

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-- Curtis Olson - University of Minnesota - FlightGear Projecthttp://baron.flightgear.org/~curt/
http://www.humanfirst.umn.edu/http://www.flightgear.orgUnique text: 2f585eeea02e2c79d7b1d8c4963bae2d
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