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Problem with Glide Slope?? (Read 699 times)

Aug 29^th, 2003 at 3:17am

Simviation2003 Offline
Colonel
IFR is the most demanding
challenge a man can face
North West NSW Australia

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Hello Fellow Aviator's,

Could anyone tell me what's needed to set up the Glide Path so my aircraft (and AI) land at the threshold, and not 2/3 of the way up the runway?
I've checked the setting with other airports and have tried to use the exact setting to no avail.
In your opinion, where should the glide path/DME be place in comparison to the runway?

Any advice would be most appreciated.

SV2003

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Reply #1 - Aug 29^th, 2003 at 3:21pm

emh8 Offline
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Minneapolis, Minnesota

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Posts: 331

SV2003,

This sounds like a continuation of our previous thread about adding ILS..............

Most glide slopes that I have seen in AFCAD are located at the far end of the runway with a 3-degree projection angle. This might not work for all airports - sometimes it's a matter of trial and error to figure out what works best. The best way of testing the glide slope is to tune the ILS frequency in NAV1 and use slew mode to see if the angle is appropriate.

Adding ILS to a runway in FSSC as we discussed will have no effect on the behavior of AI traffic, as it is an addition to the scenery rather than the AFCAD file. How an AI aircraft behaves on approach is a function of its .air file. Also keep in mind that there are a lot of aircraft out there that aren't designed for AI traffic use!

Good luck!

Erik

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Reply #2 - Aug 29^th, 2003 at 7:04pm

Simviation2003 Offline
Colonel
IFR is the most demanding
challenge a man can face
North West NSW Australia

Gender:
Posts: 126

Thanks emh8

I've tried all but at the farthest end of the runway (sounds pretty orthodox) but will definitely give it a shot.

I understand what you mean about AI and their suitability of alot of aircraft out there.
I must admit, I have a couple floating on the surface, (no landing gear) which I'm happy to accept.
Are these types of aircraft (not really suitable for AI), have any damaging affect on the system performance and or frame rates?

Thanks Again

SV2003

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Reply #3 - Aug 29^th, 2003 at 11:50pm

emh8 Offline
Colonel
Minneapolis, Minnesota

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Posts: 331

SV2003,

In general, the more AI aircraft you have in the frame, the lower the frame rate is going to be. And yes, some aircraft can kill frame rates all by themselves. Yesterday I downloaded an aircraft that I wanted to test for AI. Before I unzipped it I realized the file was over 17 MB in size. This is a sign that the aircraft contains an extreme amount of graphics detail. Alas, I threw it away.

If an aircraft does not display a landing gear, then it probably wasn't designed for AI use, and it's likely that you'll observe other erratic behavior during takeoff/landing, etc.

These are the types of models I have had the most success with as AI aircraft (not in any particular order):

1. Project AI - http://projectai.flight1.net/

2. AI Aardvark - http://home.earthlink.net/~ai_aardvarkthree/hanger03/ai_aardvark.html

3. GMAX models by Mike Stone, including his general aviation aircraft - http://www.pmstone.com/

Of course, the stock aircraft that came with fs2002 are also good to use.

Erik

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Reply #4 - Aug 31^st, 2003 at 6:53am

Simviation2003 Offline
Colonel
IFR is the most demanding
challenge a man can face
North West NSW Australia

Gender:
Posts: 126

Thanks mate,

I've downloaded aircraft from all 3 of those sites.
Thanks for the advice on size of Mb etc.
I have checked and replaced some aircraft that were large in Mb's and things are going a little steadier.

(I've also fix my glidepath problem as well)
Thanks again

SV2003

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Reply #5 - Aug 31^st, 2003 at 5:58pm

bdenni Offline
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Glendale, AZ

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Posts: 69

The localizer is situated at the far end of the runway that it is designated for meaning the beam travels the entire length of the runway towards the approach side of the runway and out to its transmission limits. (For a Runway 27 approach from east to west, the localizer is at the west end of the runway.)

The glide slope transmitters are located about 200 feet from the centerline of the runway near the target touchdown point on the runway. If the target is 500 feet down the runway, the glide slope would be located either left or right of the runway. It's "beam" is then focused typically for a 3 degree slope from that point out to the limits of its transmitter.

The ILS in the aircraft takes both of these tranmissions to display the aircrafts position in relation to the localizer and glide slope.

Hope this clears things up.
Bob

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Reply #6 - Sep 1^st, 2003 at 12:15pm

emh8 Offline
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Minneapolis, Minnesota

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Posts: 331

Very informative........................

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