Simviation Forum - ILS problem

Sep 4^th, 2007 at 9:37am

expat Offline
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Stock 737-800, the ILS always flies me into the ground about a mile or so from the runway. I fly an IFR route, follow ATC to pick up the localiser, the aircraft turns to runway heading and then desends with what seems like a normal rate, but way to soon. Any ideas.

Matt

PETA People Eating Tasty Animals.

B1 Boeing 737-800 and Dash8 Q-400

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Reply #1 - Sep 4^th, 2007 at 10:11am

Brett_Henderson Offline
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Do you end up stalling ? Or just hitting the ground, way too early (prob way too fast ) ?

Are you at the proper airspeed for each step of the approach ? Proper amount of flaps deployed at the proper time ? Have you mastered landing manually so that the whole approach/landing sequence is second nature ... so you'll be able to identify the problem before crashing ?

Are you at a safe landing weight ? Trying to hold a proper glideslope at a proper airspeed is tough in a plane at MGTOW.

Setting up ILS approaches (even if you plan on letting the autopilot fly them ) comes much easier when you've done it all, many times (realistically), by hand.

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Reply #2 - Sep 4^th, 2007 at 10:19am

expat Offline
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Brett_Henderson wrote on Sep 4^th, 2007 at 10:11am:

Do you end up stalling ? Or just hitting the ground, way too early (prob way too fast ) ?

Are you at the proper airspeed for each step of the approach ? Proper amount of flaps deployed at the proper time ? Have you mastered landing manually so that the whole approach/landing sequence is second nature ... so you'll be able to identify the problem before crashing ?

Are you at a safe landing weight ? Trying to hold a proper glideslope at a proper airspeed is tough in a plane at MGTOW.

Setting up ILS approaches (even if you plan on letting the autopilot fly them Roll Eyes

) comes much easier when you've done it all, many times (realistically), by hand.

Speed is good and stable with flaps set, weight was also OK. The aircraft just appears to take a glide slope that wants to land it a mile or so early.

Matt

PETA People Eating Tasty Animals.

B1 Boeing 737-800 and Dash8 Q-400

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Reply #3 - Sep 4^th, 2007 at 10:23am

Brett_Henderson Offline
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EVERY OUTER MARKER SHOULD
BE AN NDB

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You say it "always" flies you into the ground ... As in every airport, every ILS ?

I know there are a few buggy ILSs in FSX, but if it happens to you always.. something fundemental is amiss. I don't want to keep speculating, so I'll wait on more data..

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Reply #4 - Sep 4^th, 2007 at 10:34am

expat Offline
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Brett_Henderson wrote on Sep 4^th, 2007 at 10:23am:

You say it "always" flies you into the ground ... As in every airport, every ILS ?

I know there are a few buggy ILSs in FSX, but if it happens to you always.. something fundemental is amiss. I don't want to keep speculating, so I'll wait on more data..

It happened on a flight into Heathrow, several times. Maybe I should try another airport or two to see if it is me or FSX. I am not new to this, and never had a problem 2004 so it is really ......me off. The only thing that comes to mind, is once the localiser was picked up, I turned off alt hold. Everything else was set as it should be.

Matt

PETA People Eating Tasty Animals.

B1 Boeing 737-800 and Dash8 Q-400

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Reply #5 - Sep 4^th, 2007 at 2:37pm

SubZer0 Offline
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You manually turned off the altitude AP? It's supposed to turn off by itself when it's time for it to begin descending toward the runway.

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Reply #6 - Sep 4^th, 2007 at 3:32pm

expat Offline
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SubZer0 wrote on Sep 4^th, 2007 at 2:37pm:

You manually turned off the altitude AP? It's supposed to turn off by itself when it's time for it to begin descending toward the runway.

Bingo

. Finger trouble, as usual with these things Grin

Matt

PETA People Eating Tasty Animals.

B1 Boeing 737-800 and Dash8 Q-400

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Reply #7 - Sep 4^th, 2007 at 5:54pm

newbe007 Offline
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HOW DO YOU USE ILS. I WAS FLYING IN 0% VISABILITY WITH A CROSSWIND OF 30KTN IT MIGHT OF
HELPED!!!!!!! Grin

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Reply #8 - Sep 4^th, 2007 at 6:16pm

TSC. Offline
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newbe007 wrote on Sep 4^th, 2007 at 5:54pm:

HOW DO YOU USE ILS. I WAS FLYING IN 0% VISABILITY WITH A CROSSWIND OF 30KTN IT MIGHT OF
HELPED!!!!!!! Grin

Have a look at Brett's reply in this thread & follow the links provided: http://www.simviation.com/cgi-bin/yabb2/YaBB.pl?num=1188913114

& stop shouting, it's nearly the middle of the night here. Roll Eyes

TSC.

'Only two things are infinite.......The Universe and Human stupidity........and I'm not too sure about the Universe' - Einstein

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Reply #9 - Sep 4^th, 2007 at 8:24pm

Talon_Assault Offline
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EEEEE rocks :p
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expat wrote on Sep 4^th, 2007 at 9:37am:

Stock 737-800, the ILS always flies me into the ground about a mile or so from the runway. I fly an IFR route, follow ATC to pick up the localiser, the aircraft turns to runway heading and then desends with what seems like a normal rate, but way to soon. Any ideas.

Matt

Haha yeah thats happend to me :/
but it didt Atcually Flew my into the ground, practicly just Raises the throttle and flyies directly upwards, until my engines carnt take it and fail, set on fire,.. expload and kill everyone exept me because i bailed out :p

(saw it coming... Auto pilots can be leathal, Dont trust the machines ) Roll Eyes

Dont piss me off! im running out of places to hide the bodies!

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