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Old 28th Oct 2007, 23:55
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Simulator Circuits

Currently undergoing type conversion 737. Instructors insisting we fly circuits on autopilot FD, with MAP and various waypoints to depict turning points and altitudes. Looking outside discouraged as we are told MAP is more accurate. Base leg and early final done on VS mode, AT engaged and heading and MCP speed.
Having come off conventional light twins where visual circuits are required, having trouble coping with heads down automatics in the circuit. Suggestions apprecaited.
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Old 29th Oct 2007, 00:01
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Is a circuit not meant to be a visual procedure? Is workload not increased and lookout impaired with heads down that close in, and close to the ground?

Good luck on the course.
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Old 29th Oct 2007, 00:15
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Using MAP, for most students, helps early in the piece to balance the typical limitations of the visual system on the box.

The reality, for most boxes, is that you need to do a bit of both (looking outside and playing with the screen) to make it work reasonably tidily and keep up a reasonable rate of student progress .. just an acknowledgement of the reality of the limitations.

Unless your box has very good side vision you really just can't fly it like you would pole a light twin around the circuit ..

So far as the instructor is concerned, I suggest that he is just trying to get you up to speed as quickly as he can while acknowledging the time pressures on box availability and the amount of stuff he has to cover during the endorsement sequences.

Having trouble coping at the start with the buttons .. join just about everyone else on their first fancy aircraft .. I just wonder how people cope with transitioning from a lightie straight onto the Airbus cockpit ... I don't know that I would have liked that prospect ... Apache onto F27 confused me enough at the time ..
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Old 29th Oct 2007, 00:28
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Circuits in the sim are generally quite difficult. The tendency to overcorrect combined with the poor visuals make it a difficult maneuver. I recommend to fly the profile as perfectly as you can, with a few glances out now and then, to verify that you are indeed still visual with the field. (Be very accurate with tracking+timings) When turning base, stick to the profile you've been taught, 200-300 V/S works for me, and adjust the bank angle selector so you align the trend vector with finals. Don't forget to readjust your V/S (7-800) once on the PAPIs and disconnect.
I think the reason behind all this is that the 737(-800 at least) is unforgiving if you're not on profile compared to smaller aircraft. You need to be quite accurate. But, hell. Once on line, if you can fly a visual primarily looking out then there's nothing stopping you.
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Old 29th Oct 2007, 01:17
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Is a circuit not meant to be a visual procedure?
Not in the simulator, cooperate and graduate.
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Old 29th Oct 2007, 06:01
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Judd, you're in a simulator. This machine can often bear very little resemblance to the real world out there, as it seems you have just found out. Your instructor would appear to be trying to help you get the sim flying sorted, so I strongly recommend listening and learning from what s/he has to say. A sim is NOT an aircraft, just a high priced video game after all is said and done. Remember whose train set it is and play with it as the owner wishes.

Good luck!
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Old 29th Oct 2007, 06:56
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Working for a large european carrier, we used to do it same way e.g. AP and FD on as long as possible doing visual circuits. But this was ten years ago. Now visual circuit means AP/FD off latest when turning base.
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Old 29th Oct 2007, 07:53
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I agree with the 4 posts above!

Lean back and do as the instructor tells you to, it will (or won't) make sense afterwards. But the guy has experience in training students. Don't fall into the "..but I used to do this differently!" - of course you did, you were flying a different aircraft.

And to John_Tullamarine:

I did exactly that: transition from a light type straight into the A320 cockpit. It was not that big of a deal to fly it, it is very stable, and for normal ops you don't even need that many buttons. Things changed going into the abnormals, though.
I found it much tougher to transition from A340 to a CRJ, taking evolution a step backwards, from an aircraft providing you with diagnosis to one that will only show symptoms - totally different way of thinking.
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Old 29th Oct 2007, 11:45
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SIM

The three most important words on a conversion. Oh I SEE.
Any time the instructors has a pearl of wisdom you don't necessarily agree with, those three words works wonders. Smooth sim session and everyone's happy.
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Old 29th Oct 2007, 11:50
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I fully understand the use of the MAP in the circuit and did not intend to suggest flying it looking out of the simulator - as many above have said you can not really do it.

Additional points may be the way you are taught - and it is a training and passing phase of flying that you are in so use it and as 'dream liner' so rightly says - cooperate and graduate (path of least resistance!)

The use of the MAP, combined with a 3X height (in seconds) past the threshold corrected for wind and then VS 200 - 300fpm on base is a good guideline until on visual finals.

RYR-738-JOCKEY's advice is a good starting point I think.

Good luck and enjoy.
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Old 4th Nov 2007, 01:15
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Thanks for info. Conversion going OK but with several different instructors each has own opinions. After flying Chieftains am used to VOR/ILS HSI mode for ILS but am told to always use MAP mode which has much info I don't need. Don't mean to be bolshy but why force MAP mode down throats. HSI mode must be there for some reason because it has its own glide slope too..
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Old 4th Nov 2007, 22:42
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Don't mean to be bolshy but why force MAP mode down throats.
No-one forcing it down your throat - you could always go back to Chieftains

Seriously, use the modes you are advised to by the instructor and your passage through the course will be smooth...

Re-read some of the advice offered above and keep you questions for the things that matter!
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Old 4th Nov 2007, 23:12
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Hey Judd,

I don't approve of the guys here saying "do as the instructor says" to get through your course smoothly, what I am saying is:
Don't just carry the attitude, I've always done it this way, I want to go on like this...
There is a lot your instructor can show you, new things, that feel uncomfortable in the beginning, but make sense, when you get used to them.
As in your case, you have always flown an HSI, and call the other information superfluous (spelling?!). There is lots of information on the map mode, you might want to use. Or you are just lazy, as Iam, and all the info you need is on one screen, the PFD. The glideslope information is coming from the same source (on A320, A340, CRJ) anyways, it doesn't give you redundancy to show it twice on the screens...
Maybe something new is to be discovered by new techniques you have never thought of before.

Nic
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Old 5th Nov 2007, 02:48
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Don't mean to be bolshy but why force MAP mode down throats. HSI mode must be there for some reason because it has its own glide slope too..
I think the key phrase is 'situational awareness': HSI give you some SA, MAP gives you a lot more. I advocate ND with EGPWS, PFD with WX RADAR, TCAS and Lightning Sensor on both. After a while, looking at the HSI makes you feel blind!

It's a helicopter, but I think you'll agree the principle is the same:

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Old 5th Nov 2007, 03:23
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The three most important words on a conversion. Oh I SEE
How true!
As opposed to "Well back when I was flying the (fill in the blank) we used to do it this way bla bla bla"
Remember, you are in sim world, they will teach you acceptable methods to pass your check ride, techniques that you use on the line may vary.
Good luck D.L.
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Old 5th Nov 2007, 07:58
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The limitations of simulated circular approaches are recognised by the industry.

One of (the many) recommendations the RAeS International Working Group (Flight Simulation Training Device (FSTD) Qualification Standards) will make to ICAO will be to change the FOV from 40 X 180 to 40 X 200 degrees for what are currently referred to as Level C/D devices.

The much improved picture quality in terms of brightness and resolution now available from LCoS projectors coupled with vastly improved database content (due to satellite imagery) should make for much more realistic visual circuits.
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Old 5th Nov 2007, 12:51
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Mea Culpa. 212man. fantastic photos and thanks. The Chieftain experience has to be forgotten. Gotta get used to the instructor frowning if I back up MAP with ADF needles on RMI - he says to forget navaids and to trust MAP 100%. Is he right?
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Old 5th Nov 2007, 13:03
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Wouldn't go that far: you can see the ADF on the RMI, just to help guage the LOC intercept, but there's no right or wrong. Bottom line: don't get lost or fly into the ground!!
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Old 5th Nov 2007, 13:12
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Unless I am misunderstanding something, you are training in a simulator to do a circling maneuverer, I'm assuming you will have to do this for your check ride, in this context, YES, use the MAP as your instructor recommends (on the check ride glance out the window from time to time).
Is this how we operate out on the line, NO, but you are in sim world.
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Old 5th Nov 2007, 21:54
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Originally Posted by ZFT
The limitations of simulated circular approaches are recognised by the industry.
One of (the many) recommendations the RAeS International Working Group (Flight Simulation Training Device (FSTD) Qualification Standards) will make to ICAO will be to change the FOV from 40 X 180 to 40 X 200 degrees for what are currently referred to as Level C/D devices.
The much improved picture quality in terms of brightness and resolution now available from LCoS projectors coupled with vastly improved database content (due to satellite imagery) should make for much more realistic visual circuits.
ZFT - my compliments, sir! As a participant in this particular effort, I can say from first hand knowledge, not many would recognize this on-going effort - even though it is participated in by a reasonably good cross-section of airlines from around the world, training providers, simulator and FTD manufacturers, airplane manufacturers, regulators, pilot groups, and other interests. It is a significant effort that will have long term effects on the training aspects of airline operations.
Again, thanks for not only recognizing what is going on, but for taking the time to advise others.
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