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Something that's been frustrating me... (Read 316 times)
Oct 21st, 2007 at 4:56am

spitfire boy   Offline
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Here's the thing; despite my love for Flight Simulation, I'm not actually very good at flying in-sim. Most of my flying comprises taking a random aircraft, placing it at a random airport, taking off and then simply going absolutely bananas with the joystick.

I would like to start flying proper - long-ish haul flights in airliners seems a sensible way to go. But therein lies a problem. I've never been able to get to grips with the flight director switch. Could someone please explain how I'd get a typical airliner in FS to follow a course automatically, rather than lining the plane up manually on the little pink line on the gps and then selecting the 'wing level' switch?

Any help would be hugely appreciated. Wink
 

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Reply #1 - Oct 21st, 2007 at 5:20am

ozzy72   Offline
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Just adjust the trim until you've got everything the way you want it and then hit the AP (auto-pilot) button Wink
 

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Reply #2 - Oct 21st, 2007 at 5:30am

C   Offline
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spitfire boy wrote on Oct 21st, 2007 at 4:56am:
Here's the thing; despite my love for Flight Simulation, I'm not actually very good at flying in-sim. Most of my flying comprises taking a random aircraft, placing it at a random airport, taking off and then simply going absolutely bananas with the joystick.


That's the joy of FS!


Quote:
I would like to start flying proper - long-ish haul flights in airliners seems a sensible way to go. But therein lies a problem. I've never been able to get to grips with the flight director switch. Could someone please explain how I'd get a typical airliner in FS to follow a course automatically, rather than lining the plane up manually on the little pink line on the gps and then selecting the 'wing level' switch?

Any help would be hugely appreciated. Wink


You're best bet are probably the tutorials, purely as each aircraft will have differing FDs and Autopilot systems. Smiley
 
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Reply #3 - Oct 21st, 2007 at 6:12am

Mictheslik   Offline
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And remember.....learn the basics of AP flight in the cessnas....dont jump straight to a 747 Wink

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Reply #4 - Oct 21st, 2007 at 9:33am

spitfire boy   Offline
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I am in the process of doing the tutorials; still a way to go though. Wink

Thanks for the help guys... guess I need a bit more patience.

Well can you blame me, I'm 14 for crying out loud, no-one ever heard of a 14-year-old with even a modicombe of patience - or common sense for that matter.... Grin Grin
 

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Reply #5 - Oct 21st, 2007 at 10:24am

Brett_Henderson   Offline
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Quote:
And remember.....learn the basics of AP flight in the cessnas....dont jump straight to a 747  


That's an UNderstatement. But it's not just the autopilot ...  it's flying in general.. EVERY aspect  Smiley

Quote:
I would like to start flying proper


You've already figured out that just plopping an airplane at an airport, and then making the model behave enough like an airplane to "simulate" flying, gets boring, in a hurry..  Trust me... being told how to use the autopilot to track a GPS course, or VOR radial... so that you can watch a 737 hum along at 34,000feet will get boring, even more quickly.

The best method for getting THE most satisfaction out of simming; is to go about it, just like you would real-world piloting.

Step back and start from scratch. You're now a student pilot with a solo endorsement in a Cessna 172. Every time you sit down to sim, have a goal in mind. Be patient and deliberate focus on the fundementals and a step-by-step mastery of the same skills you'd need to prove, before even thinking about moving on to bigger, faster, and more complex airplanes.

As soon as you can; Take off, hold a heading, hold altitude, fly a perfect pattern (at pattern altitude) and execute a perfect (stabilized) approach/landing... it's time to move on to maneuvers:  

Multiple, successive, 360 degree steep turns (at least 45 degrees of bank), +/- 100 feet .. +/- 10kias ..  rolling out +/- 5 degrees

Slow flight; holding 50kias (+/- 5 knots), while making 90 degree turns (+/- 5 degrees), while holding altitude +/- 100 feet.

Turns about a point; picking a landmark and flying a near-perfect circle around it at 1500agl in at least a 20knot wind.

Fly a perfectly squared-off pattern in a 20knot wind...

When you're able to adjust your approach, for ANY wind... hold a stable crab-angle (locked on runway center-line) and manage a smooth, cross-controlled, cross-wind landing... It's time to move on to navigation.. There's no satisfaction; very little learning, and not a whole lot of fun in watching an autopilot track a GPS course, if you haven't mastered basic VOR/NDB navigation.

At this point in your student piloting, you're ready to start "going places"... and the importance (and fun) of realistic flight planning comes into play. Just like for real.. you need to have the whole thing planned before sitting behind the yoke/joy-stick. You're still a solo-student, so you won't have passengers and weight/balance planning isn't critical (yet). All you really need to plan, is your fuel burn.
                                      ---------------------
**note:  It's best to save a flight for training (might as well make it the default flight, since you aren't rated for anything other than the C172), and it's realistic to do your training out of the same (home) airport... Go ahead and leave both occupants (or take the right seat guy out if you like), but be sure to start each flight checking and setting the fuel. Kinda like part of the pre-flight... and on some of your later flights (you and three buddies and some gear) you'll need a VERY specific amount of fuel, to stay under the maximum take-off weight, but enough to make each leg (with legal reserves)***
                                       ------------------------

Assuming that you use real weather for these flights, you can go to this sight for weather info and winds-aloft forecasts   http://adds.aviationweather.noaa.gov/   (this also assumes that you know how to calculate a heading and calculate your ground speed, adjusting for the winds aloft, for each leg of the flight). This is ground-school stuff, so I'll just state the obvious.. You need to know your ground speed in order to calculate a fuel burn..

P.S.   *** absolutely NO GPS use yet  ****

Keep it simple at first... to and from some realtively close airports to get a feel for using VORs and NDBs to find them...and then expand the horizons going further and further. In no time at all, you'll feel confident in VOR/NDB use and your flight planning will get more complex.. using several nav-aids to go further and further.. even needing to have planned fuel-stops and multi-day (session) trips.

When you can confidently and comfortably navigate (no GPS)... you're pretty much a sim "Private Pilot", and ready to move on to instrument flying.. A college course worth of learning, all by itself   Smiley  ... and can be done so realistically with a desktop computer, that the FAA allows up to 10 hours of your logged, instrument training to be done under a CFII's supervision.

 *** to be continued****
 
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Reply #6 - Oct 21st, 2007 at 10:41am

spitfire boy   Offline
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Brett_Henderson wrote on Oct 21st, 2007 at 10:24am:
Quote:
And remember.....learn the basics of AP flight in the cessnas....dont jump straight to a 747  


That's an UNderstatement. But it's not just the autopilot ...  it's flying in general.. EVERY aspect  Smiley

Quote:
I would like to start flying proper


You've already figured out that just plopping an airplane at an airport, and then making the model behave enough like an airplane to "simulate" flying, gets boring, in a hurry..  Trust me... being told how to use the autopilot to track a GPS course, or VOR radial... so that you can watch a 737 hum along at 34,000feet will get boring, even more quickly.

The best method for getting THE most satisfaction out of simming; is to go about it, just like you would real-world piloting.

Step back and start from scratch. You're now a student pilot with a solo endorsement in a Cessna 172. Every time you sit down to sim, have a goal in mind. Be patient and deliberate focus on the fundementals and a step-by-step mastery of the same skills you'd need to prove, before even thinking about moving on to bigger, faster, and more complex airplanes.

As soon as you can; Take off, hold a heading, hold altitude, fly a perfect pattern (at pattern altitude) and execute a perfect (stabilized) approach/landing... it's time to move on to maneuvers:  

Multiple, successive, 360 degree steep turns (at least 45 degrees of bank), +/- 100 feet .. +/- 10kias ..  rolling out +/- 5 degrees

Slow flight; holding 50kias (+/- 5 knots), while making 90 degree turns (+/- 5 degrees), while holding altitude +/- 100 feet.

Turns about a point; picking a landmark and flying a near-perfect circle around it at 1500agl in at least a 20knot wind.

Fly a perfectly squared-off pattern in a 20knot wind...

When you're able to adjust your approach, for ANY wind... hold a stable crab-angle (locked on runway center-line) and manage a smooth, cross-controlled, cross-wind landing... It's time to move on to navigation.. There's no satisfaction; very little learning, and not a whole lot of fun in watching an autopilot track a GPS course, if you haven't mastered basic VOR/NDB navigation.

At this point in your student piloting, you're ready to start "going places"... and the importance (and fun) of realistic flight planning comes into play. Just like for real.. you need to have the whole thing planned before sitting behind the yoke/joy-stick. You're still a solo-student, so you won't have passengers and weight/balance planning isn't critical (yet). All you really need to plan, is your fuel burn.
                                      ---------------------
**note:  It's best to save a flight for training (might as well make it the default flight, since you aren't rated for anything other than the C172), and it's realistic to do your training out of the same (home) airport... Go ahead and leave both occupants (or take the right seat guy out if you like), but be sure to start each flight checking and setting the fuel. Kinda like part of the pre-flight... and on some of your later flights (you and three buddies and some gear) you'll need a VERY specific amount of fuel, to stay under the maximum take-off weight, but enough to make each leg (with legal reserves)***
                                       ------------------------

Assuming that you use real weather for these flights, you can go to this sight for weather info and winds-aloft forecasts   http://adds.aviationweather.noaa.gov/   (this also assumes that you know how to calculate a heading and calculate your ground speed, adjusting for the winds aloft, for each leg of the flight). This is ground-school stuff, so I'll just state the obvious.. You need to know your ground speed in order to calculate a fuel burn..

P.S.   *** absolutely NO GPS use yet  ****

Keep it simple at first... to and from some realtively close airports to get a feel for using VORs and NDBs to find them...and then expand the horizons going further and further. In no time at all, you'll feel confident in VOR/NDB use and your flight planning will get more complex.. using several nav-aids to go further and further.. even needing to have planned fuel-stops and multi-day (session) trips.

When you can confidently and comfortably navigate (no GPS)... you're pretty much a sim "Private Pilot", and ready to move on to instrument flying.. A college course worth of learning, all by itself   Smiley  ... and can be done so realistically with a desktop computer, that the FAA allows up to 10 hours of your logged, instrument training to be done under a CFII's supervision.

 *** to be continued****


Well that was comprehensive...

Thanks very much Brett; at this point I've accomplished most of the first paragraph under the second quote; still a way to go. But that's good.

Thanks again!! Cheesy
 

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Reply #7 - Oct 21st, 2007 at 11:15am

Brett_Henderson   Offline
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Quote:
Well that was comprehensive...

Thanks very much Brett; at this point I've accomplished most of the first paragraph under the second quote; still a way to go. But that's good.

Thanks again!! 


EXCELLENT !  Smiley   and, you're welcome...

When you have questions, or need advice, or just wanna report your progress..
we'll be here  Cheesy
 
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Reply #8 - Oct 21st, 2007 at 11:52am

beaky   Offline
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Dang, Brett... the FAA should give you some kind of award for getting a 14-yr-old to stop fidgeting long enough to learn some basics...

"for auspicious conduct above and beyond the call of duty of a CFI..."

Cheesy

BTW, spit- just to toss in my two cents: Brett is right, and I'll add that if you stick with short hops at first, with only one or two new tasks for each flight, it's not so boring, even in a little "putt putt" airplane.

Once you unlock the secrets of basic maneuvers and navigation, you'll find it very satisfying, and you'll also find it easier to move up to more challenging "missions" in more complex aircraft.
 

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Reply #9 - Oct 21st, 2007 at 2:18pm

spitfire boy   Offline
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beaky wrote on Oct 21st, 2007 at 11:52am:
Dang, Brett... the FAA should give you some kind of award for getting a 14-yr-old to stop fidgeting long enough to learn some basics...


Angry

Grin

beaky wrote on Oct 21st, 2007 at 11:52am:
BTW, spit- just to toss in my two cents: Brett is right, and I'll add that if you stick with short hops at first, with only one or two new tasks for each flight, it's not so boring, even in a little "putt putt" airplane.

Once you unlock the secrets of basic maneuvers and navigation, you'll find it very satisfying, and you'll also find it easier to move up to more challenging "missions" in more complex aircraft.


Righto, sir... Grin

I'm off to go fly a pattern in an itty-bitty cessna.... toodle-oo!! Cheesy

Boy, am I in a strange mood tonight.... Roll Eyes
 

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Reply #10 - Oct 21st, 2007 at 5:36pm

TSC.   Offline
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spitfire boy wrote on Oct 21st, 2007 at 9:33am:
no-one ever heard of a 14-year-old with even a modicombe of patience

& yet you still feel the need to sit in a computer guided bus staring at ocean or ground thats so far away it all looks the same? & how long are you expecting these long hauls to last? 4 hours? 6 hours?

Sounds boring already.

Take some notes from Brett & Sean, stick to the GA's, get some proper charts, & invent your own short hop trips using some radio nav-aids & great big dose of VFR - you'll stay interested much longer.

Cheers,

TSC.
 

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Reply #11 - Oct 22nd, 2007 at 3:06am

spitfire boy   Offline
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TSC. wrote on Oct 21st, 2007 at 5:36pm:
spitfire boy wrote on Oct 21st, 2007 at 9:33am:
no-one ever heard of a 14-year-old with even a modicombe of patience

& yet you still feel the need to sit in a computer guided bus staring at ocean or ground thats so far away it all looks the same? & how long are you expecting these long hauls to last? 4 hours? 6 hours?


I guess I just wanted to learn the technicalities of it. That sort of thing I find very interesting.

If you're recommending I stick to the GA, are there any GA downloads in particular you'd recommend?
 

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Reply #12 - Oct 22nd, 2007 at 11:55am

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spitfire boy wrote on Oct 22nd, 2007 at 3:06am:
If you're recommending I stick to the GA, are there any GA downloads in particular you'd recommend?

I think you'd learn more & understand more sticking with GA rather than ploughing headlong into buses. Personally I find it very rewarding to complete a flight using the basic nav-aids & VFR.

Unfortunately the HD on my FS comp has gone belly up this morning so am a bit lost as to what freeware bits to recommend, I'm pretty much stuck on payware now, but I use a couple of Carenado's Cessna's & Holger Sandmann's Misty Fjords & Tongass Fjords (plus his freeware Glacier Bay V2) - I've also added FSaddon's Freight Dogs to give me somethings to aim for when I can't decide on my own flights.

I use Skyvector to provide the charts I need so that I can take in some proper VFR flying & try my hand at navigating with the charts.

Sorry I can't be of much help with the freeware stuff, it's not really something I use anymore - although I know Fozz uses lots of freeware GA & I'm sure he could point you in the direction of some great free downloads.

Cheers,

TSC.
 

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Reply #13 - Oct 23rd, 2007 at 1:49pm

spitfire boy   Offline
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TSC. wrote on Oct 22nd, 2007 at 11:55am:
spitfire boy wrote on Oct 22nd, 2007 at 3:06am:
If you're recommending I stick to the GA, are there any GA downloads in particular you'd recommend?

I think you'd learn more & understand more sticking with GA rather than ploughing headlong into buses. Personally I find it very rewarding to complete a flight using the basic nav-aids & VFR.

Unfortunately the HD on my FS comp has gone belly up this morning so am a bit lost as to what freeware bits to recommend, I'm pretty much stuck on payware now, but I use a couple of Carenado's Cessna's & Holger Sandmann's Misty Fjords & Tongass Fjords (plus his freeware Glacier Bay V2) - I've also added FSaddon's Freight Dogs to give me somethings to aim for when I can't decide on my own flights.

I use Skyvector to provide the charts I need so that I can take in some proper VFR flying & try my hand at navigating with the charts.

Sorry I can't be of much help with the freeware stuff, it's not really something I use anymore - although I know Fozz uses lots of freeware GA & I'm sure he could point you in the direction of some great free downloads.

Cheers,

TSC.


Downloading the 'misty fjords' add-on as we speak; looking forward to it...

As for GA aircraft, I use the much-talked-about cessna 150 freeware package, and sometimes the also-much-talked-about King Air 300, see here
 

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Reply #14 - Oct 23rd, 2007 at 2:37pm

Brett_Henderson   Offline
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HEY  Angry  ... when did sneak off and get you multi-engine and turbine ratings ?
 
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Reply #15 - Oct 23rd, 2007 at 5:04pm

spitfire boy   Offline
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Brett_Henderson wrote on Oct 23rd, 2007 at 2:37pm:
HEY  Angry  ... when did sneak off and get you multi-engine and turbine ratings ?


Grin

It's for relaxing, when on occasion I don't want the fuss of procedures and just take off and fly... if you can call flipping a king air onto it's back relaxing.... Smiley
 

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Reply #16 - Oct 24th, 2007 at 1:22pm

TSC.   Offline
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Glad to hear you went for the Misty Fjords package, make sure to check out the charts that come bundeled with the package - you can get to them by going into 'Start' -> 'All Programs' then looking for the FSAddon stuff. I quite enjoy finding a log cabin on the chart (ones that are modelled are indicated by a drawing pin in the chart) & then flying off to find just a little cabin on a lake somewhere.

Another great addon for Misty Fjords is the Stikine Icefields Research Program. All the camps have an NDB so they are quite easy to find & a nice little challenge aswell.

Looking forward to some pictures.

Cheers,

TSC.
 

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Reply #17 - Oct 26th, 2007 at 11:25am
Slotback   Ex Member

 
spitfire boy wrote on Oct 21st, 2007 at 9:33am:
I am in the process of doing the tutorials; still a way to go though. Wink

Thanks for the help guys... guess I need a bit more patience.

Well can you blame me, I'm 14 for crying out loud, no-one ever heard of a 14-year-old with even a modicombe of patience - or common sense for that matter.... Grin Grin

I learned PMDG 737 when I was 13. Smiley

But seriously, I would stick with learning all about General aviation and basic navigation. When you get bored of that you can try a payware domestic / regional airliner flying on VATSIM. Trust me, flying with over 10 other people with voice ATC, flying real procedures, real world weather in a payware aircraft is nothing short of amazing.

Trust me, you probably will not find airliners boring if you do it right. Smiley
 
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Reply #18 - Nov 20th, 2007 at 1:26am

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spitfire boy wrote on Oct 21st, 2007 at 4:56am:
Here's the thing; despite my love for Flight Simulation, I'm not actually very good at flying in-sim. Most of my flying comprises taking a random aircraft, placing it at a random airport, taking off and then simply going absolutely bananas with the joystick.

I would like to start flying proper - long-ish haul flights in airliners seems a sensible way to go. But therein lies a problem. I've never been able to get to grips with the flight director switch. Could someone please explain how I'd get a typical airliner in FS to follow a course automatically, rather than lining the plane up manually on the little pink line on the gps and then selecting the 'wing level' switch?

Any help would be hugely appreciated. Wink


Even simpler solution that Brett's....  get out of that boring slow jetliner and get into something that actually responds within the decade like the Extra! lol   j/k

Oh, and I learned to fly when I was 13.  Real airplanes kept my attention much better than flight sim ones... especially back "in those days." haha!!
 

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Reply #19 - Nov 20th, 2007 at 7:10am

Brett_Henderson   Offline
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Ummm... there are a couple threads in here worth reading through (and contributing to)    Smiley  Wink
 
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Reply #20 - Nov 20th, 2007 at 1:12pm

spitfire boy   Offline
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Sorry for not being around much... I've had a bit of a 'sim lapse' as you do... been playing Empire Earth 2 instead. Grin
 

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Reply #21 - Nov 21st, 2007 at 6:54am

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If you just want the plane to follow the direct GPS line, change from NAV to GPS on the a/p. Then hit A/P On or whatever it is for the aircraft.
 

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Reply #22 - Nov 21st, 2007 at 10:40am

Brett_Henderson   Offline
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Quote:
If you just want the plane to follow the direct GPS line, change from NAV to GPS on the a/p. Then hit A/P On or whatever it is for the aircraft.


But but but...  He wants to start flying "proper". That would include the challenge of learning navigation.

Just sitting there and watching the A/P fly the plane for you...following a moving map, GPS line ?  I mean, what's the point ? 

Getting yourself there, by your own skill, 1/2 the fun  Smiley
 
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Reply #23 - Nov 28th, 2007 at 8:03pm

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Nigel© wrote on Nov 21st, 2007 at 6:54am:
If you just want the plane to follow the direct GPS line, change from NAV to GPS on the a/p. Then hit A/P On or whatever it is for the aircraft.


NAV HOLD on almost every freeware with a complete A/P...
 

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Reply #24 - Nov 28th, 2007 at 10:24pm

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Brett_Henderson wrote on Nov 21st, 2007 at 10:40am:
Quote:
If you just want the plane to follow the direct GPS line, change from NAV to GPS on the a/p. Then hit A/P On or whatever it is for the aircraft.


But but but...  He wants to start flying "proper". That would include the challenge of learning navigation.

Just sitting there and watching the A/P fly the plane for you...following a moving map, GPS line ?  I mean, what's the point ?  

Getting yourself there, by your own skill, 1/2 the fun  Smiley


Point is, GPS is now the mainstay of airline navigation. All modern jets come equipped with the latest GPS technology and ability to track it, even land via GPS (with a precision approach, nonetheless) from the word go. GPS is so accurate you can execute a precision approach with it, what chance do those puny little VHF radio based VORs and ILS' have?

That's the sad story, Brett. However, it still is a requirement to learn the two, because the above only applies to the United States, because Europe is currently pouting about not getting a share of the sattelites WE designed and built. Europe has not edorsed GPS navigation because they are acting like parasites, we buld a revolution in navigation, and they ask "Where's my share?" It's really going to be because of the European Union's pouting soon enough that GPS does not become the global mainstay, and if they do, I hope they will be proud of themselves for finally returning the technology crown back to the US (Japan is not included in this debate).

THe above, however, I do not support. I say leave those "archaic" VORs and ILS' as backups in case the GPS decides to act up, as well as for the poor early birds who don't even have a GPS antenna. Still, it does not change that GPS is taking over. Sad

Hoever, as I fly mostly old birds around, my navigation skills must go back in time as well, so as long as at least FS has VORs, NDBs, and the ILS, I'm happy. I fly planes based on the navigation systems they were designed to use, so as such, I fly my 747-200 using VORs, NDBs, and the INS. The 707 is the same thing minus the INS (which I want in that plane quite a bit), and the A340 by GPS. I also recently completed a short all-NDB flight in the trusty DC-3, landind successfully, so my NDB skills are up to par, and a VOR approach is more or less the same thing with a little bit more precision, and I fly ILSs all the time, so no practice needed with them.

The only problem I have with non-precision approaches is I don't know where to find approach ptes for outside the US, all I can find are plates for American airports, no European or Asian, etc. That mouthful being said, I am always up to learn more about navigation. Wink
 
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Reply #25 - Nov 28th, 2007 at 11:14pm

Brett_Henderson   Offline
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No arguing that GPS is the navigating standard now. Even all of our club rental planes have IFR certified GPS... And I rarely fly by VOR in real life...

That's what's wonderfully refreshing about simming. You can learn, and stay sharp, on good, old radio navigation  Smiley   It's much more fun, challenging and educational to radio-navigate in the sim. I won't even turn the GPS on, in the sim. It's SO much more satisfying to find your way around by your own skills  Wink

Steering a plane along a moving-map, GPS line (or worse.. letting the A/P track it for you), leaves you, well.. ummm.. doing nothing  Roll Eyes

 
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Reply #26 - Nov 28th, 2007 at 11:19pm

ThomasKaira   Offline
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Brett_Henderson wrote on Nov 28th, 2007 at 11:14pm:
No arguing that GPS is the navigating standard now. Even all of our club rental planes have IFR certified GPS... And I rarely fly by VOR in real life...

That's what's wonderfully refreshing about simming. You can learn, and stay sharp, on good, old radio navigation  Smiley   It's much more fun, challenging and educational to radio-navigate in the sim. I won't even turn the GPS on, in the sim. It's SO much more satisfying to find your way around by your own skills  Wink

Steering a plane along a moving-map, GPS line (or worse.. letting the A/P track it for you), leaves you, well.. ummm.. doing nothing  Roll Eyes



Concurrance!  Smiley
 
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Reply #27 - Nov 28th, 2007 at 11:30pm

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It's like with automatic transmissions today, nobody knows how to drive a manual anymore.  My dad made me learn and drive a manual for the first couple years I drove, and now I can drive just about anything.  Only learning to use the GPS is going to stop you from flying all those "archaic" aircraft with steam gauges.  Not to mention, what happens when the GPS fails, and you haven't flown VOR approach in years?  I've had at least one RAIM outage in my short amount of instrument time, but when it happened, it caught both my instructor and I off guard, and we had to have the back-up of the VORs to navigate by.
 

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Reply #28 - Nov 29th, 2007 at 6:54am

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Oddly.. radio navigation is what got me into flying to begin with. I was an Electrical Engineering student at the time. When we covered phased and directional antenna arrays, VORs were talked about. The idea that you could know exactly where you were, and navigate, by these cryptic radios/gauges absolutley fascinated me.
 
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Reply #29 - Nov 29th, 2007 at 8:05am

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I often wonder what redundancy flight crews will have when all of the navigational eggs wind up in the GPS basket...that's the nice thing about having some VORs and NDBs left: there's a backup in case the GPS receiver or the satellite links fail.

It does happen, and it will happen... just read a story on another forum by a PP who was on a GPS approach (to an ILS, in IMC) when he lost the uplink about 2 miles from the FAF (the dreaded "positional data lost").
He hadn't bothered tracking his position by VOR, even though there is one nearby... luckily, ATC had him on radar and OK'd him to descend a bit, to see if he could get in the clear and find the runway. He was lucky the ceiling was high enough, and luckier still to have radar coverage that low (not from the tower).  His other option would have been to go missed with no good idea of his position, then struggle back to the VOR approach fix.
And of course, without a VOR or radar coverage, he'd have been hosed.

Until they take pilots out of airplanes completely, no matter what bells and whistles you have aboard, if you can't fly by compass, chart and clock you have no business flying. I know that kind of flying is a lot harder in or above clouds, but every pilot should have at least a rough idea of their position based on dead reckoning, just in case.

ALSO: even if all you want to do in MSFS is babysit the AP on airliners, remember that in many parts of the world, enroute and terminal radar coverage is limited, and  VOR and even NDB approaches are quite common.
 

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Reply #30 - Nov 29th, 2007 at 9:08am

Brett_Henderson   Offline
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When things go wrong in IMC (Murphy assures it)... and the tower/ATC are swamped (the norm these days).. the one thing you had better be able to do, is get to a hold and fly it accurately !

More times than not, that hold is a VOR, or a spot referenced by VOR (radial intersection, DME point, etc.)

If you've got that VOR tuned in (and are good at using it); flying to that hold and holding safely is quicker than trying to hold by GPS. That VOR gauge is part of your instinctive scan... flying to a hold by looking at a GPS screen breaks the scan mentality (and that's assuming part of your problem isn't GPS failure related  Wink ).

GPS navigation is not a skill, it's not an art, it's not even a task... ANYbody can keep an airplane icon on a moving map line ....
 
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Reply #31 - Nov 29th, 2007 at 12:29pm

Nexus   Offline
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Brett_Henderson wrote on Nov 29th, 2007 at 9:08am:
GPS navigation is not a skill, it's not an art, it's not even a task... ANYbody can keep an airplane icon on a moving map line ....


Why should flying be "hard"?

It's ok to pride yourself in knowing how to navigate by VORs, but there's no reason to slander GPS navigation.
Just because it's easy, doesn't make it less OKAY.
Most young pilots I socialize with are pretty handy with the GPS and can program the thing far quicker than looking up various charts for VOR holds.
The nintendo generation of the skies aren't slouches  Wink
 
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Reply #32 - Nov 29th, 2007 at 1:16pm

Brett_Henderson   Offline
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Flying shouldn't be hard..  heck you can hire someone to fly for you...


I'm not slandering a GPS any more than I'd be slandering a calculator.. "why should math be  hard ?"

I'm saying that there's no challenge to it..  To quote someone.. "if all you want to do is babysit the aoutpilot while it tracks a GPS course.. that's fine"  But if you want to LEARN something... well you know  Roll Eyes
 
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Reply #33 - Nov 29th, 2007 at 1:20pm

Brett_Henderson   Offline
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Quote:
The nintendo generation of the skies aren't slouches   


No doubt about that... and a GPS in capable hands is quite a tool..  But even the Nintendo generation need to learn the basics. I wouldn't want to climb onto a regional jet whose pilot wasn't a whiz at VOR navigation..
 
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Reply #34 - Nov 29th, 2007 at 1:53pm

Nexus   Offline
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Brett_Henderson wrote on Nov 29th, 2007 at 1:20pm:
Quote:
The nintendo generation of the skies aren't slouches  


No doubt about that... and a GPS in capable hands is quite a tool..  But even the Nintendo generation need to learn the basics. I wouldn't want to climb onto a regional jet whose pilot wasn't a whiz at VOR navigation..


And I wouldn't either  Smiley
 
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Reply #35 - Nov 30th, 2007 at 8:44am
Relentless   Ex Member

 
Actually, most Airlines are not completely GPS.

They use to of used an inertial navigation system, atleast, the planes I'm familiar with. Three gyros, one in each axis, with sophisticaed instrumentation to measure the precession of each gyro as it is moved, and to use that data to calculate velocity and heading relative to a starting point (the point of initilization).

INS were later improved with (laser ring) gyros with no moving parts (AHRS - Attitude and Heading Reference System). They, as in the early B757 and B767, the laser ring units were fed updates from, IGS, VOR and TACAN (the DME portion) data for a more accurate self-updating system. Lastly, GPS is now (primarily) used in most jets depending on the airline(r) and whether they've retrofitted their fleet. So, it will make no difference if GPS fails, or if a bunch of Navaids fail. The only use I can see of not navigating by this is if you're flying into an airport that isn't in the nav database or you simply cannot mess with the CDU due to various situations.

You mentioned you use the A340.... well the CLS A340 atleast, uses the default (GPS) planner instead of modelling its AHRS and FMC. That's semi-realistic, but in real life it's not as simple as only GPS.

And lastly, ILS is always used for precision landings. GPS updates are still no where near accurate enough. Smiley

http://www.boeing.com/commercial/caft/reference/documents/RNP757767.pdf

Smiley

EDIT: And any pilot who cannot navigate by VOR is probably retarded.

EDIT2: Corrected faults.
« Last Edit: Nov 30th, 2007 at 11:29am by N/A »  
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Reply #36 - Nov 30th, 2007 at 9:10am

Nexus   Offline
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Actually most airlines use GPS as primary navigation source.
Even the 757 and 767 who has state of the art strap-down triple IRS setups.
They come equipped with three multi mode receivers (MMR's), each includes an ILS and GPS receiver (GPS unavailable on centre MMR).

So inertial nav in a modern airliner provides plenty of data (roll rates, bang anles, slip angles, wind etc), but they are not used as a the primary navigation tool anymore.

The FMC has a negative bias in selecting the INS/IRS as the position source, it would only use it if GPS has failed and there are no usable navaids for scanning.

From the 767 AOM:
"The FMC uses GPS data for position information as long as the GPS is enabled
and the GPS data is valid. If GPS data is not available or is unreliable the FMC
will use Radio or IRS position data"
 
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Reply #37 - Nov 30th, 2007 at 9:13am
Relentless   Ex Member

 
No, I'm pretty sure GPS isn't used in most 767s and 757s.
 
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Reply #38 - Nov 30th, 2007 at 9:34am

Nexus   Offline
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Quote:
No, I'm pretty sure GPS isn't used in most 767s and 757s.


Why would crew training document lie?
The same thing goes for 737NGs, 777's and even the 744.
The aircraft use GPS as the priority updating source of the FMC, not IRS.

GPS was not included in the 757/767 family intitially, but it is a very easy retrofit which many airlines have opted for.
 
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Reply #39 - Nov 30th, 2007 at 9:53am
Relentless   Ex Member

 
Most 767s and 757s I've encountered hadn't been retrofitted. Smiley

Wait, could you please clarify something for me. w/ FANS-1, is the position updated primarily by GPS, or is it just completely GPS?
 
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Reply #40 - Nov 30th, 2007 at 10:34am

Nexus   Offline
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The bias is as following when determing FMC position.
Here's the low down.

"· GPS (as installed)
· Two or more DME stations
· One VOR with a collocated DME
· One localizer and collocated DME
· One localizer.

FMC logic selects the GPS position (as installed) as the primary update to the
FMC position. If all GPS data becomes unavailable, the FMC reverts to radio
updating or reference to IRS position.

The FMC position is derived from a mathematical combination of the positions
determined by the IRS, radio, and GPS systems. It represents the FMC’s
estimate of the actual position of the aircraft. Its accuracy depends upon the
accuracy of the position determining systems."

Yeah I know, much mumbo jumbo there, but IRS is usually the last one to be picked in "determine my position" contest  Smiley
 
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Reply #41 - Nov 30th, 2007 at 10:57am
Relentless   Ex Member

 
Ok thanks.

I found out where I got it wrong.... confusing AHRS with INS....  Embarrassed Are you a pilot in real life?
« Last Edit: Dec 1st, 2007 at 12:56am by N/A »  
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