FLIGHT SIMULATION FORUMS
Everything you Need or Have to Know about The ®Microsoft Flight Simulator
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
FLIGHT SIMULATION FORUMS Forum Index
->
FS9 General Forum
***Open To Guest Posting***
Post a reply
Username
Subject
Submit post?
No
Yes
Please select "Yes" to submit your guest post
Message body
Emoticons
View more Emoticons
Font colour:
Default
Dark Red
Red
Orange
Brown
Yellow
Green
Olive
Cyan
Blue
Dark Blue
Indigo
Violet
White
Black
Font size:
Font size
Tiny
Small
Normal
Large
Huge
Close Tags
Options
HTML is
OFF
BBCode
is
ON
Smilies are
ON
Disable BBCode in this post
Disable Smilies in this post
Confirmation code
: *
All times are GMT + 3 Hours
Jump to:
Select a forum
FLIGHT SIMULATION GENERAL FORUMS LOBBY
----------------
About Flight Simulation Forums
***Please Read Before Registering***
General Flight Simulation Lobby
***Open To Guest Posting***
FSF **POLL** Forum
FSX-FS9 Tips Tricks Hints and Fixes
FSX MICROSOFT FLIGHT SIMULATOR- X
----------------
FSX General Forum
***Open To Guest Posting***
FSX Aircraft Forum
FSX Scenery Forum
FSX Aircraft Downloads
FSX Scenery Downloads
FSX Miscellaneous Downloads
FSX Helicopters
FS2004 (FS9) A CENTURY of FLIGHT
----------------
FS9 General Forum
***Open To Guest Posting***
FS9 Aircraft Forum
FS9 Scenery Forum
FSX/FS9 WORLD TOURS,ADVENTURES & MISSIONS
----------------
World Tours
Adventures & Missions
TileProxy Forum-FSX & FS9
***Open To Guest Posting***
----------------
TileProxy Discussion Forum-FSX
& FS9
TileProxy Screenshot Forum
FSX/FS9 SCREENSHOT FORUMS
----------------
Screen Shooting, Uploading, Video Making/Editing, Signatures & Avatars
FSX Airliner Screenshots
FSX GA Aircraft Screenshots
FSX Military Screenshots
FSX Miscellaneous Screenshots
FSX Screenshots Request
FS9 Screenshots Forum
FSF Video Forum
FSF SCREENSHOT CONTEST FORUMS
***Open To Guest Posting***
----------------
FSX Screenshot Contest
FS9 Screenshot Contest
Special Edit Contest Forum
Real Life Photo Contest
Flight Simulator Developers - CARENADO
***Open To Guest Posting***
----------------
CARENADO FORUM
FSF/OMEGA-AIR VIRTUAL AIRLINES
----------------
Omega-Air
Omega-Air Archives
VIRTUAL AIRLINES & MUTLIPLAYER FORUM(FS9 & FSX)
----------------
FS Virtual Airline Forum
FS Multiflyer Forum
DESIGNERS FORUMS
----------------
FSF Flight Sim Reviews
Rare Flight Simulations
Sim-World E-Magazine
REPAINT FORUMS
----------------
Repaint Forum
Repaints Screenshots Forum
Repaint, Textures and Other Member Downloads
COMPUTERS - MEMBERS TECH FORUM
----------------
Hardware-Software Forum
Computer Security Forum
Utility Forum
Microsoft Vista OS-Windows7
OTHER FORUMS
----------------
Special Edits
FS Passengers
Other Flight Simulator
Aviation News Forum
Real Life & Photography & Videos
Real Life Aircraft Photography & Videos
Train Model and Sim Enthusiasts
OFF TOPIC FORUM
----------------
Off Topic Forum
Off Topic Games Screenshots
Topic review
Author
Message
Blade Brown
Posted: Fri Apr 23, 2010 12:01 am
Post subject:
Ok..Thx..I got it..
It seemed like having the FD on and then turning off AP pushed my nose up because they were still the 1700ft. in the AltHold that ATC assigned me..seemed as the plane simply tried to get up to that level again..And due to the fact that A/T was turned off..I heard the horrible sound of the Stickshaker after 5 seconds cause I was about to stall... I tried it during cruising..same thing... FD on... AltHold Off..there goes the plane... FD off, ALTHold off.. or AP off... it kept perfectly flying... Maybe a flaw in the Sim.. I dunno... However... It works now..and I will put vids of it tomorrow on Youtube..hehehehe...
Thx again...
Seb
99jolegg
Posted: Thu Apr 22, 2010 11:52 pm
Post subject:
No not your mistake - the FD doesn't do that in real life and shouldn't - when AP is off, it's merely a guide to the pilot; it's not an automatic function of the aircraft and doesn't control the aircraft.
2500ft is just a guide for ILS interception - all airfields are different. I suggested a height just so people didn't have to check the runway plates for the airfield they're attending but you can do it that way if you wish. Some intercept at 2000ft, some 1500ft, some 3000ft - depends on the airfield and its elevation.
Blade Brown
Posted: Thu Apr 22, 2010 11:48 pm
Post subject:
Ok Thx...
I also think I found my problem....
First.. For my approach, landing in HK (54 ft above sea level), ATC assigns me 1.700 ft... according to the usuall 2500 feet to catch the glideslope from below, that mean I would catch it later than if I would be at 2500 ft... I saw it cause on the primary display, once I hit the glideslope, which i think was the green arrow on my gps, the pink square in my flight display told me i m too low..it came down by itself after time..probably coz of the 1.700 ft.. once it was in the middle, i hit the approach button..
I saw all of a sudden, during my approach (which probably never happens in real life) that the runway etc was all of a sudden covered with a green grid and green outlines... then I pressed approach button (according to glideslop on the flight display) and the plane started to descend, turning off the auto-heading (cause I put the heading of 73 in the crs according to flightplan) and it turned of the althold switch...
However... it did not turn off the flight director.... and there was the trouble... after turning off the flight director and then A/T and then the AP, voila...whoop whoop, but no nose up anymore..and i landed very smoothly by going to idle with thrust at 20 ft and flaring the nose...
seems like the FD is not for landing and as you said, disengaging the AP might set the plane to the settings of the FD...... If that was the problem and not just coincidence..that was a stupid beginner mistake from my side.. lol
99jolegg
Posted: Thu Apr 22, 2010 9:55 pm
Post subject:
Blade Brown wrote:
I mean it seemed to be kind of a stair type approach.. They reduced speed and descended...increased speed and kept the altitude...reduced again and descended..like a stair... Seemed to me as they were going down..keeping..down..keeping..down..keeping etc..
Depending on how busy the airspace you're in is, radar control might give you limits on climbs / descents to avoid other traffic either crossing or same direction / opposite direction. Where possible, ATC will try to give you continuous descents / climbs, though.
Blade Brown wrote:
plus i also read many tutorials saying to extend the flaps step by step..i never saw that except on the vids of the a380...
always seemed to me that they reduced speed and descended... and that at a certain speed and altitude..they extended the landing gear and full flaps which had an immense breaking power while i was seat-belted and then descended...
Yes, flaps are extended in stages - mainly because each flap setting has its own Vfe (max flap extension speed in IAS) on most types. Landing gear is usually extended on passing an altitude or a range from the destination airfield. If flying an ILS approach, the gear goes down before the final approach fix to avoid descending gear up.
Extend the flaps in stages as in the real world - it's far smoother, safer and comfortable to do so. There is no logic behind dumping 30-40 degrees of flap in a couple of seconds.
You'll find this out when you fly certain types of aircraft in the real world - controlling the balloon created from high speed / cambered wing with increased surface area sometimes has to be seen to be believed!
Blade Brown
Posted: Thu Apr 22, 2010 8:47 pm
Post subject:
I mean it seemed to be kind of a stair type approach.. They reduced speed and descended...increased speed and kept the altitude...reduced again and descended..like a stair... Seemed to me as they were going down..keeping..down..keeping..down..keeping etc..
plus i also read many tutorials saying to extend the flaps step by step..i never saw that except on the vids of the a380...
always seemed to me that they reduced speed and descended... and that at a certain speed and altitude..they extended the landing gear and full flaps which had an immense breaking power while i was seat-belted and then descended...
i also did it like this...i reduced approach speed to 210 knots..once i was ordered to descend i descended and then reduced speed to 200 knots..extended landing gear and full flaps while reducing to 180 knots..and then down to 145.. and then landing...
it s so complicated though.. lol
take off was easy..punched in all info into the AP panel..not activated... teaking off..positive climb..retracting gear and then activate Ap with AltHold..then A/T Cruise speed and then HDG Hold when ATC gave me a heading after climbing following runway heading climb...
Thx
Seb
99jolegg
Posted: Thu Apr 22, 2010 8:38 pm
Post subject:
Good luck with the licenses.
Blade Brown wrote:
I recognized they were descending and climbing using the throttle... Like flying kind of a sinus rhythym... Is that when they use a map and certain waypoints and marks to descend?
Not too sure what you mean by this - if you want to climb and maintain constant speed, you need to increase power / thrust. If you want to descend and maintain constant speed, you have to decrease power / thrust.
Blade Brown
Posted: Thu Apr 22, 2010 8:32 pm
Post subject:
Thx my friend... Great Tutorial anyways.... Now I can manage to land ILS using the AP.. although as you said... AP landing no good.... Seems that the AP is kind of watching over your shoulder in that case...I still have full control over the plane though..but these add ons %^#$!!! my system somehow... I will change the accuracy in the config file...
I know that turning of the ELAC FTL Ctrl 1 is definatley NO WAY!!!.... but if it helps for the Airbus though....ok... btw.. Didn t have an add one for the 747.. Works perfectly..even with AP Off... So it s the config file...
Will try it with a pure 767 and an A 380.... lol.... oh no... Look at us.... amateur whatever wannabe pilots going with an A380 hehehe..
However... My license is in planning... Will work out the financial stuff...I wanna fly.. And at the end get certified on a 737-800 and an 320/321 cause those are the most used ones in the world... So I am training already right now...
I also tried flying a VFR instead of IFR... and guess what... no problem.. although I used the GPS Vector and the ILS for the VFR.. and it worked... really means it s the config file altered...
By the way... I never flew a complete Visual Approach.. I remember when I was flying as passenger in a real plane.. I recognized they were descending and climbing using the throttle... Like flying kind of a sinus rhythym... Is that when they use a map and certain waypoints and marks to descend?
Thx
99jolegg
Posted: Thu Apr 22, 2010 7:52 pm
Post subject:
Glad it worked - I'm afraid I don't know anything about the config file side.
Blade Brown
Posted: Thu Apr 22, 2010 7:14 pm
Post subject:
hmmm..i get the feeling it might not be the sim itself... but the add on i downloaded
it was a texture download for the original planes... however the airplane.cfg changed as well.. somehow i think this person altered the autopilot in a way it is not flyable anymore....
the settings are:
Airbus 321:
[flight_tuning]
cruise_lift_scalar=1.0
parasite_drag_scalar=1.0
induced_drag_scalar=1.0
elevator_effectiveness=1.0
aileron_effectiveness=1.0
rudder_effectiveness=1.0
pitch_stability=1.0
roll_stability=1.0
yaw_stability=1.0
elevator_trim_effectiveness=1.0
aileron_trim_effectiveness=1.0
rudder_trim_effectiveness=1.0
static_pitch=0.3 //degrees, pitch when at rest on the ground (+=Up, -=Dn)
static_cg_height=9.2 //feet, altitude of CG when at rest on the ground
gear_system_type=1 //Hydraulic
[gear_warning_system]
gear_warning_available=1 //Normal
pct_throttle_limit=0.1 //Percent throttle that activates warning
flap_limit_idle=5.0 //Flap angle that activates warning at idle
flap_limit_power=25.5 //Flap angle that activates warning at above idle
[autopilot]
autopilot_available=1
flight_director_available=1
default_vertical_speed=1800
autothrottle_available=1
autothrottle_arming_required=1
autothrottle_max_rpm=90
autothrottle_takeoff_ga=1
pitch_takeoff_ga=8;
max_pitch=10.0
max_pitch_acceleration=1.0
max_pitch_velocity_lo_alt=2.0
max_pitch_velocity_hi_alt=1.5
max_pitch_velocity_lo_alt_breakpoint=20000.0
max_pitch_velocity_hi_alt_breakpoint=28000.0
max_bank=25.0
max_bank_acceleration=1.8
max_bank_velocity=3.00
max_throttle_rate=0.10
nav_proportional_control=12.00
nav_integrator_control=0.25
nav_derivative_control=0.00
nav_integrator_boundary=2.50
nav_derivative_boundary=0.00
gs_proportional_control=25.0
gs_integrator_control=0.53
gs_derivative_control=0.00
gs_integrator_boundary=0.70
gs_derivative_boundary=0.00
yaw_damper_gain=1.0
And Boeing 737-800
[flight_tuning]
cruise_lift_scalar = 1.0
parasite_drag_scalar = 1.0
induced_drag_scalar = 1.0
elevator_effectiveness = 1.0
aileron_effectiveness = 1.0
rudder_effectiveness = 1.0
pitch_stability = 1.0
roll_stability = 1.0
yaw_stability = 1.0
elevator_trim_effectiveness = 1.0
aileron_trim_effectiveness = 1.0
rudder_trim_effectiveness = 1.0
[autopilot]
autopilot_available=1
flight_director_available=1
default_vertical_speed=1800
autothrottle_available=1
autothrottle_arming_required=1
autothrottle_max_rpm = 90
autothrottle_takeoff_ga=1
pitch_takeoff_ga = 8;
max_pitch=10.0
max_pitch_acceleration=1.0
max_pitch_velocity_lo_alt=2.0
max_pitch_velocity_hi_alt=1.5
max_pitch_velocity_lo_alt_breakpoint=20000.0
max_pitch_velocity_hi_alt_breakpoint=28000.0
max_bank=30,25,20,15,10
max_bank_acceleration=1.8
max_bank_velocity=3.00
max_throttle_rate=0.10
nav_proportional_control=12.00
nav_integrator_control=0.25
nav_derivative_control=0.00
nav_integrator_boundary=2.50
nav_derivative_boundary=0.00
gs_proportional_control=25.0
gs_integrator_control=0.53
gs_derivative_control=0.00
gs_integrator_boundary=0.70
gs_derivative_boundary=0.00
yaw_damper_gain = 1.0
The problem must be in here somehow.... I think..
However..the AP On did it..I landed using ILS funstions etc.. and at the end just leave the AP on until I touched down..Reverse Thrust..and then turn it off..It worked...
Seb
99jolegg
Posted: Thu Apr 22, 2010 6:08 pm
Post subject:
You could try that but just as an aside, it's illegal to do that in the real world unless the aircraft and runway (they're not in the sim) are certified for a CAT IIIB/C approach i.e. the runway and aircraft (and crew) must be certified to land with the autopilot still on.
I'd still try and counteract the pitch up, which certainly becomes
so
much easier with a joystick.
Blade Brown
Posted: Thu Apr 22, 2010 6:04 pm
Post subject:
P.S.
I solved the trouble for the Airbus....Although I think no real pilot would do that... Turning of the ELAC Flight Control 1 (3 buttons, right side overhead panel) seemed to disengage this problem..It did it... But I don' t think thats the best way... The Boeing doesn t have that..I will try now leaving AP on until touch down and then see...
Seb
Blade Brown
Posted: Thu Apr 22, 2010 5:53 pm
Post subject:
Thx my friend... This time I used the whole ILS Configuration.. Meaning entering the ILS frequency.. This case Flying Guangzhou to Hong Kong..Quick jump... I punched in ILS Frequency.. And turned on NAV Button on the Com Console..Heard the Morse Code as soon as i approached.. I was flying a 737-800 Singapore Airlines.. Changed display to Approach... Configured my plane for final approach... Vectors-to-final ILS 7L Perfect alignment..as I hit the localizer I pushed the APP Hold Button and my plane started to descend and turned off AltHold Button.. Perfect... As i hit 200 ft. I disengaged AP and again..nose up..Really have to work on that trim..Maybe I leave on the AP until I am on the runway... Gotta try that... Config was okay.. flaps full 150 knots..gear down... and the Boeing descended by itself... at the end I had 4 white lights..During the approach, I was at 1.700 ft as given by ATC..She was going down perfectly... Centerline... But when I hit the AP Button at 500 ft.. bam..Nose up... damnit..lol... Let me see if I land ILS leaving AP on until I touchdown..nose down and then hit the Reverse Thrust.. Maybe then it s ok.. She lands beautifully, announcing perfeclty from 100 to 20 ft.. I have the PM Sound Add On.. then I put Thrust on Idle in order to land... no Retard Retard though.. Let me try not to disengage the AP until touchdown and Thrust Reverse..
Thx
99jolegg
Posted: Thu Apr 22, 2010 5:30 pm
Post subject:
It's the stabiliser trim that usually causes that problem. In the real world, autopilot systems are designed so that "snatching" doesn't occur on engaging or disengaging the autopilot. In the sim, it's hit and miss as to whether it'll snatch to the last known trim position when flying manual.
The best solution I can think of is it stabilise the aircraft as best as you can and re-trim for the current speed / configuration.
By the way, the four lights you're seeing are the Precision Approach Path Indicators (PAPIs) and they denote your rough whereabouts on the vertical axis on the approach i.e. the glideslope. Roughly a 3 degree glideslope is denoted by 2 white lights and 2 red lights. Higher than that indicates 3 or 4 white lights. Lower than the optimum is indicated by 3 or 4 red lights and no white lights.
Let us know how that goes.
Blade Brown
Posted: Thu Apr 22, 2010 1:13 pm
Post subject:
Hi there, thx first for this incredible tutorial.. But still... I have big troubles when landing..I think I just make a tiny mistake somehow... Or maybe I forgot something...
My approach is always fine.. I get ATC orders and follow them.. Once I have my ILS Runway Info, I punch it into the GPS with vectors-to-final.. The red line is there then and I perfectly align with the runway and i can see it..
Then I am coming in, flaps full, gear down, speed between 145 and 150 knots.. before the airport usually at around 2000 - 2500 feet.. I then descend using the althold button cause i have no joystick and flying with the keyboard is a mess... However, I wanna land manually.. I see during my final approach that these 4 lights that are next to the runway start to change color.. (I dunno must have something to do with the ILS)... Then at around 500 feet i disengage A/T but then as soon as i disengage the althold button or autopilot, my nose shoots up in the air and i miss... i tried it a different altitudes during final approach... always the same.. and whether i fly the lets say 737-800 or the airbus 321.. it s always the same... so where is the problem? It even does it sometimes when I disengage AP during the normal flight..
(I did the tutorials in MSX incl transition to jets and flew some missions..never had problems there)
I tried to learn...read books etc before i started with msx so i was thinking i was theoretically prepared lol... mistake i guess
Thx
Seb
99jolegg
Posted: Wed Feb 24, 2010 6:34 pm
Post subject:
No problems! Glad it helped.
KenTel
Posted: Wed Feb 24, 2010 4:50 am
Post subject:
Hey Jon, what a lot of knowledge you have imparted to me and a lot of other land lubbers...
Must have a lot of patience also, I have thoroughly enjoyed the post, though has taken me into the wee small hours reading it all.
Anyway I felt impelled to add my appreciation, for your time, work, knowledge and patience.
Thanks Jon!
eater1234
Posted: Wed Feb 10, 2010 1:13 am
Post subject:
thanks for help it works fine now
99jolegg
Posted: Sun Feb 07, 2010 4:54 pm
Post subject:
The approach hold is just that - an approach
hold
function so will not land the aircraft for you because it's not designed to do so. Disengage the autopilot and autothrottle at 200-500ft and hand fly the remainder.
As for not intercepting the glidesope...make sure you have intercepted the localiser first and then approach the glideslope from below at 180kts - if you do so, you should have no issues.
If you can give us a bit more info about your speed and profile, it'll help.
eater1234
Posted: Sat Feb 06, 2010 7:45 pm
Post subject:
nice tutorial.
first i did it with cessna 172 inputed course il freq and all of that, clicked aproach hold switch and whoa it really did worked plane began to turn itself and before i knew it i was safetly on the ground.
then,
i did same thing with default a321 inputed ourse ils freq and everything, clicked on aproach hold switch and plane lined up to the runway, but it began to go up and then all the way down to just a few feet above the ground, once i was over runway it didnt made touchdown it just flew straight.
hmm....
Taxman
Posted: Thu Apr 23, 2009 2:12 pm
Post subject: ILS
I am fairly sure it did stay on but wasn't sure how to override it. I will try your suggestion.
Thanks very much,
taxman
Hosting by:
Free website builder
Powered by
phpBB
© 2001, 2005 phpBB Group