AirTalk.org Aviation discussions newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  IFR approaches to airports with buildings in protected zone          AirTalk.org Forum Index -> Instrument Flight Rules View previous topic :: View next topic   Author Message Ron Lee Guest Posted: Mon May 07, 2007 4:52 am    Post subject: IFR approaches to airports with buildings in protected zone Please ignore my lack of detailed knowledge of TERPS type stuff but are there any US airports with GPS approaches where there are buildings inside the lateral protected zone? Supposedly if an airport does not meet such criteria there may be a way to get a waiver using some sort of mitigation...perhaps highers minimums or similar. Ron Lee Back to top Jim Carter Guest Posted: Mon May 07, 2007 6:11 am    Post subject: Re: IFR approaches to airports with buildings in protected z Conway, Arkansas - CWY - has a building in the protected zone and has a GPS approach from the East. The runway threshold has been displaced significantly for both VFR and IFR arrivals - the VFR guys just try not to hit the building and use all the runway. The actual encroachment is supposedly less than a foot laterally and he built the building before the city owned the airport and extended the runway. -- Jim Carter Rogers, Arkansas "john smith" <johnsmith (AT) net (DOT) net> wrote in message news:463e8426$0$8931$4c368faf (AT) roadrunner (DOT) com... Quote: In article <463e6979.15267562 (AT) news (DOT) pcisys.net>, ronleenospam (AT) pcisys (DOT) net (Ron Lee) wrote: Please ignore my lack of detailed knowledge of TERPS type stuff but are there any US airports with GPS approaches where there are buildings inside the lateral protected zone? Supposedly if an airport does not meet such criteria there may be a way to get a waiver using some sort of mitigation...perhaps highers minimums or similar. Not a waiver, higher minimums. Back to top john smith Guest Posted: Mon May 07, 2007 6:11 am    Post subject: Re: IFR approaches to airports with buildings in protected z In article <463e6979.15267562 (AT) news (DOT) pcisys.net>, ronleenospam (AT) pcisys (DOT) net (Ron Lee) wrote: Quote: Please ignore my lack of detailed knowledge of TERPS type stuff but are there any US airports with GPS approaches where there are buildings inside the lateral protected zone? Supposedly if an airport does not meet such criteria there may be a way to get a waiver using some sort of mitigation...perhaps highers minimums or similar. Not a waiver, higher minimums. Back to top Ron Lee Guest Posted: Mon May 07, 2007 11:57 pm    Post subject: Re: IFR approaches to airports with buildings in protected z "Jim Carter" <jim.carter (AT) swbell (DOT) net> wrote: Quote: Conway, Arkansas - CWY - has a building in the protected zone and has a GPS approach from the East. The runway threshold has been displaced significantly for both VFR and IFR arrivals - the VFR guys just try not to hit the building and use all the runway. The actual encroachment is supposedly less than a foot laterally and he built the building before the city owned the airport and extended the runway. Thanks. Do you mean CWS? I had a good talk with the airport manager and got some information that will be helpful. Other airports that fit this situation would also be useful. Ron Lee Back to top Jim Carter Guest Posted: Tue May 08, 2007 1:14 am    Post subject: Re: IFR approaches to airports with buildings in protected z Yep - CWS - my bad. I didn't pull the plate just responded from memory. I'm pretty sure it used to be CWY years ago, but I believe they changed it a while back. Kind of like the old habit call Boeing Tower when at King County in Seattle, or Riverside Tower at the Jones airport in Tulsa. Old habits die hard. Did you notice that the threshold is displaced 1643' ? That's a heck of an impact from a very small encroachment. -- Jim Carter Rogers, Arkansas "Ron Lee" <ronleenospam (AT) pcisys (DOT) net> wrote in message news:463f7639.21404062 (AT) news (DOT) pcisys.net... Quote: "Jim Carter" <jim.carter (AT) swbell (DOT) net> wrote: Conway, Arkansas - CWY - has a building in the protected zone and has a GPS approach from the East. The runway threshold has been displaced significantly for both VFR and IFR arrivals - the VFR guys just try not to hit the building and use all the runway. The actual encroachment is supposedly less than a foot laterally and he built the building before the city owned the airport and extended the runway. Thanks. Do you mean CWS? I had a good talk with the airport manager and got some information that will be helpful. Other airports that fit this situation would also be useful. Ron Lee Back to top Jose Guest Posted: Tue May 08, 2007 3:09 am    Post subject: Re: IFR approaches to airports with buildings in protected z Quote: Did you notice that the threshold is displaced 1643' ? That's a heck of an impact from a very small encroachment. That's a three degree slope off of 86 feet. Jose -- Quantum Mechanics is like this: God =does= play dice with the universe, except there's no God, and there's no dice. And maybe there's no universe. for Email, make the obvious change in the address. Back to top Ron Lee Guest Posted: Tue May 08, 2007 6:11 am    Post subject: Re: IFR approaches to airports with buildings in protected z "Jim Carter" <jim.carter (AT) swbell (DOT) net> wrote: Quote: Yep - CWS - my bad. I didn't pull the plate just responded from memory. I'm pretty sure it used to be CWY years ago, but I believe they changed it a while back. Kind of like the old habit call Boeing Tower when at King County in Seattle, or Riverside Tower at the Jones airport in Tulsa. Old habits die hard. Did you notice that the threshold is displaced 1643' ? That's a heck of an impact from a very small encroachment. I was told there is/was an antenna there as well which may have played more of a role in the displacement. I should learn much more with time about the process. 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