Re: [Flightgear-devel] Auto Pilot probs in 0.9.1
Jim Wilson wrrites: It isn't a YASim problem, other than those are the aircraft that don't have DG installed. Here is a temporary *patch* This also reactivates the autopilot adjuster :-) Norman diffs Description: Binary data
Re: [Flightgear-devel] Auto Pilot probs in 0.9.1
Norman Vine [EMAIL PROTECTED] said: Jim Wilson wrrites: It isn't a YASim problem, other than those are the aircraft that don't have DG installed. Here is a temporary *patch* This also reactivates the autopilot adjuster :-) Right...temporary. This just points up the need to get a fully configurable autopilot running. If there isn't a DG you can't really follow heading. So the j3-cub should not even have an autopilot without it. As you know, the way the auto pilot ties in to the instrument with Curt's patch is the correct behavior. Best, Jim ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Auto Pilot probs in 0.9.1
Jim Wilson writes: Right...temporary. This just points up the need to get a fully configurable autopilot running. If there isn't a DG you can't really follow heading. So the j3-cub should not even have an autopilot without it. I wonder if anyone has ever STC'd some kind of autopilot for a PA-18. I somehow doubt it, but it would be interesting to check. A fully-configurable AP will be nice, because Norm will then be able to tie it to the true heading for his GIS work, while people who want flight simulation will have the option to make it behave realistically (tied to a DG on a small plane, or a complex FMS on a larger one). All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Auto Pilot probs in 0.9.1
Curtis L. Olson wrote: Heading hold seems to fail on YASim planes ... something seems to be missing, or not quite happening right. I thing this was introduced about the same time David implimented the vacuum driven AI and DG ... Hrm... did a property name change, perhaps? Or maybe something that I've never set correctly got promoted into use? I'll take a look tonight, although someone more familiar with the autopilot would probably have more luck; just tell me which output property is garbage. :) Andy -- Andrew J. RossNextBus Information Systems Senior Software Engineer Emeryville, CA [EMAIL PROTECTED] http://www.nextbus.com Men go crazy in conflagrations. They only get better one by one. - Sting (misquoted) ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Auto Pilot probs in 0.9.1
Andy Ross writes: Curtis L. Olson wrote: Heading hold seems to fail on YASim planes ... something seems to be missing, or not quite happening right. I thing this was introduced about the same time David implimented the vacuum driven AI and DG ... Hrm... did a property name change, perhaps? Or maybe something that I've never set correctly got promoted into use? I'll take a look tonight, although someone more familiar with the autopilot would probably have more luck; just tell me which output property is garbage. :) following NOT YASIM specific One question I have is why is the AP always turning to the right ? Could this be a simple problem due to an fabs() call on the error term somewhere, or maybe a clamp( 0.0 - 1.0) that should be a clamp (--1.0 - 1.0) Norman ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Auto Pilot probs in 0.9.1
A patch that Curt added back in October is the root of the problem. The code is adjusting the Target heading with the difference between the FDM heading and the DG instrumentation. If there is no DG then the DG indicated heading doesn't change when the aircraft yaws so the gap just keeps getting bigger. It isn't a YASim problem, other than those are the aircraft that don't have DG installed. BTW Andy, YASim is reporting /orientation/heading-deg -180 ~ 180 instead of normalized 0 to 360. That isn't causing any problems that I can see, but it might be good to be consistant across fdm's. Best, Jim Andy Ross [EMAIL PROTECTED] said: Curtis L. Olson wrote: Heading hold seems to fail on YASim planes ... something seems to be missing, or not quite happening right. I thing this was introduced about the same time David implimented the vacuum driven AI and DG ... Hrm... did a property name change, perhaps? Or maybe something that I've never set correctly got promoted into use? I'll take a look tonight, although someone more familiar with the autopilot would probably have more luck; just tell me which output property is garbage. :) ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
