[Flightgear-devel] Re: [Flightgear-cvslogs] CVS: data/Aircraft/Instruments/Textures radar_misc.rgb, 1.1, 1.2
Erik Hofman wrote: Modified Files: radar_misc.rgb Log Message: Add support for a storm blib Excellent. As far as I know, civilian airliners carry radar that is capable only of detecting weather, not small things like aircraft. They also use a separate radar system for ground separation (the radar altimeter). For traffic, they use TCAS, which is equivalent to secondary surveillance radar (i.e. it detects other planes only if their transponders are on, and does not pick up primary targets). I'm sure that some of the very newest airliners can integrate all of this information into a single multifunction display, but for most of the existing fleet, I don't know if traffic and weather would appear on the same display or not. Can anyone chime in with concrete information? I'm sure that military combat aircraft must have radar with primary traffic capability, since the enemy is sometimes too inconsiderate to turn on the transponder. All the best, David ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: [Flightgear-cvslogs] CVS: data/Aircraft/Instruments/Textures radar_misc.rgb, 1.1, 1.2
David Megginson wrote: Erik Hofman wrote: Modified Files: radar_misc.rgb Log Message: Add support for a storm blib Excellent. As far as I know, civilian airliners carry radar that is capable only of detecting weather, not small things like aircraft. They also use a separate radar system for ground separation (the radar altimeter). For traffic, they use TCAS, which is equivalent to secondary surveillance radar (i.e. it detects other planes only if their transponders are on, and does not pick up primary targets). I know that in Europe they recently added a requirement for collision detection after two civilian aircraft hit each other when the ATC had given inappropriate directions. The sad part is, the particular air traffic controller has been stabbed to death recently. I'm sure that military combat aircraft must have radar with primary traffic capability, since the enemy is sometimes too inconsiderate to turn on the transponder. Yeah, the engaging aircraft seem to be playing hide and seek now and then. Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: [Flightgear-cvslogs] CVS: data/Aircraft/Instruments/Textures radar_misc.rgb, 1.1, 1.2
Erik Hofman wrote: I know that in Europe they recently added a requirement for collision detection after two civilian aircraft hit each other when the ATC had given inappropriate directions. Is that a requirement for TCAS, or for something else in addition to TCAS? The copilot on one of those planes was a Canadian, so we heard a fair bit about the crash in the news. The worst part was that Swiss ATC tried to cover up their mistake, but the ever-efficient Germans happened to have tapes to prove the Swiss controller's error. That said, I'm sorry to hear that the Swiss controller died. Was it in any way related to the accident? All the best, David ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: [Flightgear-cvslogs] CVS: data/Aircraft/Instruments/Textures radar_misc.rgb, 1.1, 1.2
David Megginson wrote: Erik Hofman wrote: I know that in Europe they recently added a requirement for collision detection after two civilian aircraft hit each other when the ATC had given inappropriate directions. Is that a requirement for TCAS, or for something else in addition to TCAS? Every passenger plane visiting Europe must have one of them installed (including military aircraft carrying passengers). The copilot on one of those planes was a Canadian, so we heard a fair bit about the crash in the news. The worst part was that Swiss ATC tried to cover up their mistake, but the ever-efficient Germans happened to have tapes to prove the Swiss controller's error. Yes, it wasn't perfect but to my knowledge it wasn't an error for the air traffic controller but rather a management problem involving scheduled (and unscheduled) maintenance. That said, I'm sorry to hear that the Swiss controller died. Was it in any way related to the accident? One of the aircraft was full with children from Russia and the are holding a Russian suspect. You can do the math. Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: [Flightgear-cvslogs] CVS: data/Aircraft/Instruments/Textures radar_misc.rgb, 1.1, 1.2
On Freitag, 27. Februar 2004 15:40, David Megginson wrote: That said, I'm sorry to hear that the Swiss controller died. Was it in any way related to the accident? It was not clear up to the yesterday evening news. Have not seen/heared news from today. Greetings Mathias -- Mathias Fröhlich, email: [EMAIL PROTECTED] ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: [Flightgear-cvslogs] CVS: data/Aircraft/Instruments/Textures radar_misc.rgb, 1.1, 1.2
Erik Hofman wrote: David Megginson wrote: Erik Hofman wrote: I know that in Europe they recently added a requirement for collision detection after two civilian aircraft hit each other when the ATC had given inappropriate directions. Is that a requirement for TCAS, or for something else in addition to TCAS? Every passenger plane visiting Europe must have one of them installed (including military aircraft carrying passengers). The copilot on one of those planes was a Canadian, so we heard a fair bit about the crash in the news. The worst part was that Swiss ATC tried to cover up their mistake, but the ever-efficient Germans happened to have tapes to prove the Swiss controller's error. Yes, it wasn't perfect but to my knowledge it wasn't an error for the air traffic controller but rather a management problem involving scheduled (and unscheduled) maintenance. That said, I'm sorry to hear that the Swiss controller died. Was it in any way related to the accident? One of the aircraft was full with children from Russia and the are holding a Russian suspect. You can do the math. Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel I might be thinking of a different incident, but my understanding is that both the German and Russian planes were equipped with TCAS, and both units functioned correctly alerting the German plane to descend and the Russian to climb. Unfortunately the Swiss controller made the mistake of ordering the Russian plane to descend, the Russian pilot made the mistake of following the verbal order when standard practice is to never override a TCAS warning. In addition the error was not caught because there were no backup controllers at the Swiss facility and a piece of equipment meant to catch such errors was down for repair. This reminds me of the concept of a radar assisted collision, a relatively common occurrence in shipping that for many years actually made it more likely for two radar equipped ships to collide when passing then two non-equipped ships. Another case of adding incorrect data to correct data and causing a bad decision. Now what was that original topic again :? Josh ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: [Flightgear-cvslogs] CVS: data/Aircraft/Instruments/Textures radar_misc.rgb, 1.1, 1.2
On Friday 27 February 2004 14:02, David Megginson wrote: Erik Hofman wrote: Modified Files: radar_misc.rgb Log Message: Add support for a storm blib Excellent. As far as I know, civilian airliners carry radar that is capable only of detecting weather, not small things like aircraft. They also use a separate radar system for ground separation (the radar altimeter). For traffic, they use TCAS, which is equivalent to secondary surveillance radar (i.e. it detects other planes only if their transponders are on, and does not pick up primary targets). I'm sure that some of the very newest airliners can integrate all of this information into a single multifunction display, but for most of the existing fleet, I don't know if traffic and weather would appear on the same display or not. Can anyone chime in with concrete information? I'm sure that military combat aircraft must have radar with primary traffic capability, since the enemy is sometimes too inconsiderate to turn on the transponder. All the best, David Yeah - lots of modes, from narrow angle boresight to vertical horizontal cross-scans, different doppler stuff for crossing the scan and approaching it... and that's just air-to-air. More and different doppler stuff for look-down A2A, not to mention ground mapping stuff. Trend these days is more for passive optical stuff, both A2A A2G. Afaik, IR's better for initial acquisition - it's longer lived and so gives a bigger target, but you want to switch to visible as soon as you detect some contrast. Need active lasers for ranging though, I think. Funnily enough, while should be relatively easy to kludge, it seems a bit pointless to me... LeeE ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
