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please expedite your descent to... (Read 4234 times)
Aug 30th, 2004 at 12:40am

JRoc   Offline
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Alright, so I'm flying a short hop in my Cessna Centurion and ATC tells me to descend to 6500 feet.  So being the stickler for obeying ATC, I start my decent from 8200 to 6500 at a rate of about 700 or 800 FPM.  From about 8000 until around 7000 feet ATC kept saying "please expedite your decent to 6500 feet" - close to 10 times.  Seriously, what does he expect me to do?  Jam the yoke forward and decend at 5000 FPM?  Roll Eyes

Anyways,  is there some sort of glitch in FS9?  It doesn't happen all the time, but it when it does it gets a wee bit annoying.
 
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Reply #1 - Aug 30th, 2004 at 12:41am

Pinchaser...   Offline
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i know what you mean.... Roll Eyes
 
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Reply #2 - Aug 30th, 2004 at 12:54am

gw   Offline
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There are a couple of situations where I have had ATC nag me like that.  In this case I think you're not descending fast enough.  ATC wants you to descend at a rate that results in about a 3 degree slope.  This is where the rule comes from that says to judge the distance at which to begin your descent drop the last two zeros from your altitude and divide by three.  Doing that gives you about 3 degrees.

ATC wants you to descend at a rate that will keep you on a 3 degree slope *or steeper*.  So I suspect that 700 fpm is not fast enough for your ground speed to keep you on that slope.  The faster your ground speed is the faster you have to descend to keep up.  In one plane I fly I sometimes have to descend at 5000 fpm to maintain 3 degrees.

gw
 

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Reply #3 - Aug 30th, 2004 at 12:59am

jordonj   Offline
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How about those times where you're told to change frequencies back and forth about 5 or 6 times in less than 3 minutes? Roll Eyes
 

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Reply #4 - Aug 30th, 2004 at 10:08am

SaVas   Offline
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FS9 is great but it sure ain't prefekt Grin

 

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Reply #5 - Aug 30th, 2004 at 10:13am

wji   Offline
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Generally, to comply with FS9 ATC descent requirements, a rate of 1800 ft/min is needed.

Edit the aircraft.cfg thusly:

[autopilot]
autopilot_available             = 1
flight_director_available       = 1
default_vertical_speed          =
1800

autothrottle_available          = 1
autothrottle_arming_required    = 1

Having said that, sometime ATC just likes to wag on the crew.

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Reply #6 - Aug 30th, 2004 at 10:59am

codered   Offline
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I have noticed if I comply to the decent right away I can get away with 1000fpm without being nagged to get down faster.  If I lolly-gag around and then start my decent, I am going to have to go at a faster rate to keep from being told to expidite. Grin

Kind of bazar....  I am glad real ATC doesn't work like that. Grin
 

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Reply #7 - Aug 30th, 2004 at 11:45am

JBaymore   Offline
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A decent speed of 1800 fpm in a C172 is a bit excessive.   Wink

Guess the ATC setup was designed for the heavy metal AI.

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Reply #8 - Aug 30th, 2004 at 1:22pm

Skittles   Offline
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Quote:
How about those times where you're told to change frequencies back and forth about 5 or 6 times in less than 3 minutes? Roll Eyes

I think the person just likes to hear him/herself talk, and it's probably a running gag among the ATCs. Grin
 

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Reply #9 - Aug 30th, 2004 at 2:39pm

Chris_F   Offline
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I got a good one yesterday:

"Cessna 0 Alpha Wisky, you are 0 feet above your assigned altitude.  Please decent to 3000 feet".

Gee, thanks.
 
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Reply #10 - Aug 30th, 2004 at 2:49pm
Graycat8524   Ex Member

 
Or how about the times when you are flying (ILS and on approach) that the FS 2004 ATC will say "9 Romeo Sierra make your heading 172 degrees".  Then about a minute later it's 9 Romeo Sierra make your heading 140 degrees".  About a minute later it's 9 Romeo Sierra make your heading 170 degrees".  Another minute later it's 9 Romeo Sierra make your heading 135 degrees".

Geesh.  One could get confused.  My passengers aren't happy either.
 
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Reply #11 - Aug 30th, 2004 at 4:21pm

JRoc   Offline
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Quote:
"Cessna 0 Alpha Wisky, you are 0 feet above your assigned altitude.  Please decent to 3000 feet".


Haha! I heard ATC saying that to some AI traffic this afternoon.  Boy, they must love the sound of their own voice!
 
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Reply #12 - Aug 30th, 2004 at 5:38pm
BiggBaddWolf   Ex Member

 
Normal decent rate for a single engine aircraft is 500 fpm. I have even been flying online with ATC, and they know what kind of plane I am flying, and they expect me to drop out of the sky to make the landing  Undecided
 
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Reply #13 - Aug 30th, 2004 at 5:50pm

codered   Offline
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Quote:
I think the person just likes to hear him/herself talk, and it's probably a running gag among the ATCs. Grin


This happens to me every now and then, but it has me thinking that perhaps I am flying along the boarder or the airspace and it is enough to tell me to change frequencies, but it is not enough to make the frequency change happen. Grin

Hmm just a thought.  What a piece of junk... I can't believe we play sim like this.... Grin (trust me... it is just sarcasm.) Grin
 

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Reply #14 - Aug 30th, 2004 at 6:10pm

alrot   Offline
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Quote:
FS9 is great but it sure ain't prefekt Grin



Agree

 

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